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Publication numberUS2235714 A
Publication typeGrant
Publication dateMar 18, 1941
Filing dateApr 13, 1936
Priority dateApr 13, 1936
Publication numberUS 2235714 A, US 2235714A, US-A-2235714, US2235714 A, US2235714A
InventorsWilliam M Lennan
Original AssigneeWilliam M Lennan
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Flashlight
US 2235714 A
Abstract  available in
Images(2)
Previous page
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Claims  available in
Description  (OCR text may contain errors)

March 18, 1941. 'w. M. LENNAN 2235.714

FLASHLIGHT Filed April 13, 1956 2 Sheets-Sheet l INVENTOR. W M. ZE/VA/A/V ATTORN March 18, 1941. w', LENNAN FLASHLIGHT INVENTOR [N/VA/V.

2 Sheets-Sheet 2 WML Filed April 13, 1936 ATTORNE Patented Mar. 18,

UNITED STATES PATENT OFFICE This invention relates to flashlights or portable battery-operated and self-contained electric hand lamps.

The general object of the invention is to provide an improved flashlight which includes a bulb, socket, battery, and. switch, all of which are enclosed in a fluid proof housing.

Another object! of the invention is to pro-. vide a flashlight including novel means for A further object of the invention is to provide a flashlight including a novel switch mechanism.

Another object of the invention is to provide a flashlight including novel means for connecting a bulb socket to the battery.

An additional object of the invention is to provide a flashlight including novel focusing means.

Another object of the invention is to provide a flashlight including novel means for supporting a reflector.

A further object of the invention is to provide a novel casing for a flashlight.

Other objects and the advantages of the invention will be apparent from the following description taken in connection with the accompanying drawings, wherein:

Fig. l is a central, sectional view through a flashlight embodying the features of my invention;

Fig. 2 is a side elevation of the flashlight casing removed from the rubber housing;

Fig. 3 is a cross section taken on line 3-3 of Fig. 1;

Fig. 4 is an enlarged, fragmentary, sectional view showing the front'portion of the flashlight;

Fig. 5 is a section taken on line 55 of Fig. 1;

Fig. 6 is a perspective view of the holding clip;

Fig. '7 is acentral, sectional view through a modified lens member;

Fig. 8 is a central, sectional view on an enlarged scale showing a modification of my invention;

Fig. 9 is a section taken on line 99 of Fig. 8;

Fig. 10 is a fragmentary, central, sectional view through a modified form of flashlight;

11 is a view similar to Fig. 10 showing a further modification;

Fig. 12 is a section taken 'on line |2-i2 of I Fig, 11; and

Fig. 13 is a rear view of the lens member shown in Figs. 11 and 12.

mounting an electric light bulb socket there- 'minal 26 on the forward end of an inner cell Referring to the drawings, I have indicated my improved flashlight generally: at l0. As. shown the flashlight includes an outer hollow housing ll made of flexible rubber and an inner or battery casing II. The casing I2 is made of metal 5 and includes a cylindrical body portion which at its rear end is provided with a pair of bayonet-joint slots H. The rear end is closed by an inner closure cap [5 preferably of metal which is provided with inwardly struck tongues I5 10 which fit in the bayonet slots It so that when the cap is placed on the sleeve and rotated it will be firmly held in place.

The front end of the innercasing i2 is provided with an internal flange ll which is en- 15 gaged on its inner surface by a flber disk l8 and on its outer surface by a similar fiber disk IS. The disks l8 and I! are held in place on the flange I! by suitable rivets as clearly shown in the drawings. The outer heads on the rivets 20 20 also engage and support an inwardly directed metal flange 2| on a metal collar 22. This collar 22 is provided at one point at its circumference with a contact member 23 the purpose of which will be presently described.

.The disks [8 and I9 are engaged by and support a central rivet 24 which has an inner head 25 thereon which is adapted to engage a terof a battery while the outer end of the rivet 2| engages the center contact 29 of an electric lamp or light bulb member 30-. The bulb member is supported by a helical spring 3i the convolutions of which engage the threads on the bulb me her to thus provide a resilient socket. The spring 3| has its end secured beneath a curved boss -32 on the flange 2| as shown in Fig. 4.

The cap member i5 is provided with a plu-. rality of inwardly struck tongues 33 which engage one end of a spiral spring 34 and the other end of the spring 34 engages the bottom 35 of a cell 36 of the battery. In the accompanying drawings I have shown my invention as embodied in a two cell light but it will be understood that the number of cells is immaterial so tight sliding fit within the housing I I.

is provided with a roughened portion 62 to engage a roughened, similarly tapered portion :33

on a rubber outer closure cap member i i andthe construction is such that when, the two tapered portions are forced together the roughened portions will engage so that the cap will not be accidentally displaced. A bead 35 may be provided at the juncture of the cap and housing.

Adjacent the forward end the housing is flared outwardly as at it and is provided with an inwardly faced groove ll? which receives a lens or other transparent member d8 which is preferably made of non-breakable composition material and is shown as in the nature of a plane disk having a stifiening flange $19 which is seated in the groove d'i.

' A reflector member of suitable configuration is indicated at be and includes a body portion 55 and a cupped rim 52 which fits over a guard portion 53. This guard portion in turn engages an insulating ring 541 which is mounted on the free end 55 of the forwardly projecting portion 69 of the sleeve 39. This sleeve 39 is provided with a slot 56 and with a pair of downwardly struck arms 5? as clearly shown in Figs. 1 to 4. Mounted-in the slot is a circuit closer 58 which includes a notched portion 59 which engages the end of the slot 56 so that it may rock. The circuit closer 58 includes a shoulder 60 which limits movement in one direction.

The arms 57 and the circuit closer 58 are provided with apertures ti and 52, respectively, in which a. spring wire 63 is inserted and bent to form a loop. The outer housing is provided with a recess 94 to receive the end of the circuit closer 58. The apertures 6! and 62 are so arranged that the switch member will be held in the position shown in Fig. 4 with the end of the switch member engaging the contact 23 in one position and will be held with the switch member free from the contact as shown in Fig. 1 in the other position. I

The flashlight housing is provided with a circumferential band 65 which may be made of rubber and which includes a projecting arm 66 having an aperture 67 therein by means of which the flashlight may be hung up or may be suspended from a worker's clothing. The arm 66 may have a. suitable stifl'ening member molded therein such as a piece of canvas 66.

The inner or battery casing is preferably provided with a plurality of elongated slots 68 and with outwardly struck ribs 69 which as shown in Fig. 5 engage the inner wall of the housing.

) In assembling the flashlight the casing may be assembled as shown in Fig. 2 with the light bulb 39 in place and with cells 21 and 38 in place. The casing is then inserted in the housing so that the sleeve 39 engages the inner wall of the housing. The flashlight is then operated by pressing down on the flexible rubber housing adjacent one end of the circuit closer 58 to rock the circuit closer so that it assumes the position shown in Fig. 4. Current then passes from the terminal 26 of the battery through the rivet 24 to the center'contact of the bulb 30 thence to the socket 3|, boss 92, flange 2|, and to the collar 22 whence it passes through the contact member 23 to the circuit closer II thence to the sleeve 1 39 to the casing 12 thence to the closer cap l5, the'spring 34 and to the end oi the battery.

When the housing is again pressed upon the other end of the circuit closer 58 the switch assumes the position shown in Fig. l where the current supply is broken.

To install a new battery the cap member 6 5 is removed as is the cap 55. The batteries are then replaced and the parts reassembled. To replace the bulb 138 the cap member l is removed and the casing 52 is rotated, causing it to withdraw irom the threads 38 so that the entire casing is removed. The bulb is then replaced and the casing reinserted. To replace the lens memher or transparent closure 38 the front end of the housing is stretched allowing the lens to be removed after which a new lens may be inserted.

In focusing the light after theparts are in the position shown in Fig. l the cap member id is removed and the housing is rotated. The sleeve 39 engages the inner wall of .the housing so that it does not turn but causes the casing to move alon due to the threads ill and 38 thus'moving the bulb 30 relative to the light reflector 50.

In'Figs'S and 9 I show a modification of my invention. In this modification the housing and casing are similar to that previously described and like parts are indicated by primed similar reference numerals.

In the modification the front end of the casing 52 has a flange 8E! thereon which is engaged by an inner disk 8! and an outer disk 32. The two disks are held in place by a central rivet 83 the inner head of which contacts with the contactmember 85 of the battery and the outer head 86 of which engages the head 81 of a rivet 89 which has an outer head 89 riveted to a reflector 99 as at 98. The rivet includes a reduced portion 88 between the heads 8'! and 89. A reflector guard 93 is mounted on an insulation ring 94 which is arranged on the forward edge of the-forwardly projecting portion 40' and this guard is provided with an aperture 95 through which the reduced portion 92 of the rivet 88 is free to pass.

The casing is provided with a groove 37' in which a lens member 48' is mounted. This lens member is provided with a. peripheral flange .49 and clamped upon this flange 49' is an annular ring 95' which includes a projecting tongue 96 on which a block of insulation 96 is mounted. On the block 96 an electric light bulb socket 91 is secured. This socket has a center contact electrically engaging the tongue 96 which is electrically connected by a contact 91' with the reflector guard 93. The socket is also connected by a conductor member 98 with a spring member 99 which engages an arm I on a circuit closer l0! which is similar to the circuit closer 58 previously described and this is operated by a: spring N12 to maintain it in either of two positions. The spring member 99 is insulated from the guard 93 by insulation I03 and the switch II is also insulated from the guard 93 by insulation 194. In the modification just described the housing is provided/with a recess roughened bottom. This the switch.

I which has a recess serves to locate When the circuit closer ml is in. the position thence to the battery through the battery ena i sprin In Fig. 10 I show a slight modification of my invention wherein a lamp socket I is secured upon the lens member 00" by means of a rivet I01. The outer shell of the light socket is connected by a lead I00 with a resilient contact I00 which engages the guard 03' while the center contact of the light socket is connected through the rivet I01 with a lead III which engages a terminal III and which terminal III in turn engages the spring contact member 00'. The switch mechanism and the mounting for the reflector in the modification shown in Fig. 10 is in all respects identical to that described in connection with Fig. 8.

In Fig. 10 the circuit closer IOI is-shown as in.

"01! position and when the housing is pressed,

. however, to. move the circuit closer inwardly it through the rivet I01 to the lead IIO through :tance apart. The conductor member the terminal III to the spring member 99', circuit closer IOI, sleeve 39', and thence through the casing back to the battery.

In Figs. 11, 12, and 13 I show a further modification of my invention. In this modification the housing, casing switch, and reflector are identical with those shown in connection with Figs.

.8 and 9 just described. In the modification of Figs.ll, 12, and 13 the socket 114, instead of being secured to the lens by the rivet I01 is secured to a fiber bar II5. Adjacent one end the bar H has an electrical contact member IIG secured thereto which is electrically connected to the plate II1 by a wire I I8. Adjacent the opposite end the bar II5 has a pair of electrical contact members I I9 and I20 mounted thereon. The contact member II! is electrically connected to the shell of the socket II by a wire I2I. Each of the contact members H0 and I20 includes a spring contact finger I22 which is positioned in a recess I 23 on the side of the bar opposite to the contact members.

When the bar H5 is used a glass lens I24 is positioned in the recess 41' of the housing II. On the inner face of the lens I24 a circular electrical conductor member I25 is provided. The conductor member I25 forms substantially a complete circle except for spaced end portions I26 and I21 which are spaced only a. slight dis- I25 is preferably made of a. frangible material such as tinfoil and may be secured to the lens by a coating of Celluloid I 20 or other suitable material, with the ends I26 and I21 exposed.

The bar H5 is positioned in the housing III with the contact member II 6 engaging the contact finger 99 and with one portion of the contact member I20 engaging the reflector guard. When the lens I24 is in position the end I21 of the conductor I25 engages the spring finger portion I22 of the contact member I20 and the spring finger portion I22 of the contact member II9 engages the end I26 of the conductor I25. When the switch mechanism is actuated current flows from the contact finger 99 through the contact H6 and the wire H8 to the center contact of the socket Ill and from the shell of the socket the current flows through the wire I2I to the contact and through its associated finger portion I22 to the end I20 of the conductor I25 thence through the conductor to the end I21 thereof and through the wring finger portion I22 of the contact member I2. to the reflector guard.

From the foregoing it will be seen that for a complete electric circuit to the light socket I It the current must flow practically completely around the entire lens I24, thus should the lens I24 become cracked or broken at any point the breakable conductor I25 will be severed, thereby breaking the electrical circuit between the battery and the light socket.

In Fig. 7 I show a modified form of lens which is indicated at I30. As shown this lens includes a body which is preferably of colorless, transparent glass and on the face of this body I arrange a colored, such as red, translucent member I32 which has a central aperture I33 therethrough and which is held to the lens I20 by a. peripheral band I3 I. This lens member may be used for signalling, such as by police officers, and for other imp s s.

From the foregoing description it will be apparent that I have provided a novel flashlight which can be economically manufactured and which is highly efilcient inuse.

While I have referred to the use of rubber as a preferred material for the housing, it will be obvious that any other resilient, waterproof material which is a poor conductor of electricity may be used.

Having thus described my invention I claim:

1. In a flashlight, a housing, a battery casing in said housing, said housing comprising an elongated hollow flexible rubber member adapted to receivea transparent closure at one end, the other end of said hollow member including a wall portion tapering in one direction, and a cap, said cap including a tapering portion fitting said first mentioned tapering portion, said tapering portion being roughened.

2. In a self-contained electric hand lamp or flashlight, a hollow flexible housing having a transparent member at one end thereof, an electric light bulb member in said housing, a light reflector member in said housing, a movable support carrying one of said members for movementrelative to the other members, a battery casing wholly disposed within the housing, and means operable on movement of the casing to shift the movable support, the arrangement being such that said other members are held stationary by the engagement therewith of said flexible housing while said casing is moved within said flexible housing.

3. In a self-contained electric hand lamp or flashlight, ahollow housing having a transparent closure at one end thereof, means to support an electric light bulb socket in the housing, battery casing means wholly disposed within said housing to support a light reflector in said housing, said reflector normally being held by said housing in fixed position within said housing, said casing means being rotatable within and relative .to said housing, and means operable on rotation of said casing means to move said socket relative to the reflector.

4. In a self-contained electric hand lamp or flashlight, a flexible housing, a sleeve therein, a

reflector secured to said sleeve in said housing, said sleeve including a threaded portion, a battery casing wholly disposed within said housing to saidsleeve, a socket in said housing, and means to conduct current to said socket, the arrangement being such that said flexible housing normally engages said sleeve with a tight sliding fit and thereby normally prevents movement or said reflector, while said housing normally encloses said casing with a loose flt, so that rotation of said casing within said housing does not affect the position of said reflectonalthough said sleeve is slidable into and out of said housing upon the application of sumcient force by virtue of the flexible characteristic of said housing.

i 5. In a self-contained electric hand lamp or flashlight, a hollow sleeve having an internally threaded inner portion, a reflector in said sleeve fixed against movement relative to the threaded portion, a movable threaded member engaging the internally threaded portion whereby when the member is rotated it moves longitudinally relative tosaid threaded portion, a lamp socket on said member, and a flexible housing within which said sleeve, reflector and member are disposed, the arrangement being such that said flexible housing normally grips and holds said sleeve in place therein while said movable member is rotated relative thereto.

6. In a self-contained electric hand lamp or flashlight, a housing, a sleeve within and normally held by said housing against rotation therein, a reflector in said housing, means acting to hold said reflector on said sleeve, said sleeve including a threaded portion, a battery casing wholly disposed within said housing and including a threaded portion engaging the sleeve threaded portion whereby when the casing is rotated within said housing it moves longitudinally relative to said sleeve and said reflector, a lampsocket on said casing, and means to conduct current to said socket.

7. In a self-contained electric hand lamp or flashlight, a hollow flexible rubber housing, a battery casing wholly disposed within said housing, a metal sleeve removably engaging the interior of the housing and normally held thereby against rotation therein, said casing comprising a cylindrical. tube member loosely disposedwithin said housing for rotation therein, said sleeve and said tube member having coacting threads thereon, a disk on one end of said casing, a contact member on said disk. a lamp socket mounted on said disk, a metal collar on said disk about said socket, said disk contact member being adapted to engage a lamp in said socket and a battery in said casing, a resilient contact member on said collar, a snap switch wholly disposed within said housing and adapted to complete a circuit between said resilient contact member when operated by pressure on said housing and the sleeve, and a cap on said casing at the end" remote from said lampsocket, said cap including means to engage a battery in said casing.

8. In a flashlight, a hollow flexible rubber housing, a casing wholly disposed within said housing, a metal sleeve disposed within and removably engaging the interior of the housing, said sleeve including a forwardly projecting portion, an insulating ring mounted on the end of v the forwardly projecting portion of said sleeve, a reflector guard mounted on said insulating ring, a reflector mounted on said reflector guard,

said casing comprising a cylindrical tube member, said sleeve and said tube member having coacting threads thereon, one end of said casing assassin,

being disposed adjacent said reflector, a disk on said one end of said casing, a contact member on said disk, a lamp socket mounted on said disk, said reflector having an aperture therein in alignment with said socket, a metal collar on said disk about said socket, said disk contact member being adapted to engage a lamp in said socket and a battery in said casing, a contact member on said collar, a switch wholly disposed within but operable through said housing and adapted to complete a circuit between the contact member on the collar and the sleeve when depressed by pressure applied to said housing,

and a cap on said casing at the end remote from c said lamp socket, said cap including means to engage a battery.

9. In a flashlight, a hollow flexible rubber housing, a casing mounted in said housing, a sleeve removably engaging the interior of the housing, said sleeve including a forwardly projecting portion, an insulating ring mounted on the end of the forwardly projecting portion of said sleeve, a reflector guard mounted on said insulating ring, a reflector mounted on said reflector guard, said housing having an inwardly facing groove therein in advance of said reflector, a lens in said groove, said casing comprising a cylindrical tube member, said sleeve and said tube member having coacting threads thereon, one end of said casing'being disposed adjacent said reflector, an insulating disk on said one end of said casing, a contact member on said disk, a lamp socket mounted on said disk, said reflector having an aperture therein in alignment with said socket, a metal collar on said disk about said socket, said disk contact member being adapted to engage a lamp in said socket and a battery in said casing, a resilient contact member on said collar, a switch on said projecting portion of said sleeve, said switch being pivoted and adapted in one position to engage the contact on the collar, spring means to urge said switch to either of two positions and a, cap on said casing at the end remote from said lamp socket, said cap including means to en ge a battery.

10. In a flashlight, a hollow flexible housing open at one end and closed at the opposite end, a transparent member, said housing including means adjacent said open end to removably support said transparent member to close said open end, a ridged casing member in said housing, said casing having a cup-shaped light reflector removably supported thereon, a battery positioned in said casing, said casing being positioned in said housing with the open end of said light reflector towards said transparent member, an electric light bulb socket mounted on said transparent member, and a pair of spaced contact members mounted on said transparent member, one of said contact members being electrically connected to one contact portion of said socket and the other of said contact members being electricallyconnected to the other contact portion of said socket.

11. In a self-contained electric hand lamp or flashlight, a hollow flexible housing open at both ends and having a flared end, a removable closure for each end of the housing, a casing disposed wholly within said housing and adapted to contain a dry battery and having an electric light bulb socket mounted thereon and having a flared end fltting the flared end of said housing, said casmg and bulb socket being removable from the housing as a unit when one of the housing closures is removed, and the casins providing an internal lateral support.ior the housing.

12. In a self-contained electric hand lamp or flashlight, an elongated hollow flexible rubber housing, said housing being open at the ends thereof, a closure member at one end, a cap member at the other end, means to removably members engaging the other of said contact secure said cap member to said housing, a hollow casing in said housing, said casing having an electric bulb socket mounted thereon to support an electric light bulb, said casing being adapted to contain a dry battery, a sleeve member positioned in said housing adjacent said front end thereof, means to removably connect said sleeve and said casing, a. light reflecting member supported by said sleeve, said casing being of a size such that when it is disconnected from said sleeve and when said cap is removed from said housing the casing may be removed from said housing through the end thereof.

13. In a flashlight, a hollow housing open at one end and closed at the opposite end, a transparent member, said housing including means adjacent said open end to removably support said transparent member to close said open end, a casing member in said housing, a reflector guard mounted on said casing, a cup-shaped light reflector removably supported by said guard, a battery positioned in said casing, a contact finger mounted on and insulated from said reflector guard, a second contact finger mounted on said reflector guard, means to direct current from said battery to said first and second contact fingers, said casing being positioned in said housing with the open end of said light reflector towards said transparent member, an electric light bulb socket mounted. on said transparent member, a pair of spaced contact members mounted on said transparent member, one of said contact members being electrically connected to one contact portion of said socket and the other contact member being electrically connected to the other contact portion of said socket, one of said contact members engaging said first contact finger and the other of said contact fingers.

14. In a flashlight, a hollow flexible housing open at one end and closed at the opposite end, a transparent member, said housing including means adjacent said open end to removably support said transparent member to close said open end, a casing member in said housing, said casing including a cup-shaped reflector guard at one end, a cup-shaped light reflector resiliently supported on said guard, a battery positioned in said casing, a contact finger mounted on and insulated from said reflector guard, means to direct current from said battery to said first and second contact fingers, said means including a switch device, a bar member of electrical insulation material, an electric light bulb socket mounted on said bar, a contact member mounted on said bar adjacent one endand a pair of spaced contact members mounted on said bar adjacent the opposite end thereof, electrical conductive means connecting said first contact to one contact portion of said socket and electrical conductive means connecting one of said pairs of contacts and the other contact portion of said socket, a frangible electrical conductor member mounted on said transparent member in substantially circular form and including two spaced and portions, said bar being positioned in said housing with said first contact thereon engaging one of said contact fingers and with the second of said.

contacts thereon engaging said reflector guard, and means whereby when said lens is operatively positioned in said housing one of said ends of said conductor thereon is electrically connected to one of said pair of contacts of said bar and the other of said ends of said conductor is electrically connected to the other of said pairs of contacts, means whereby said switch is actuated to operative and inoperative positions by pressure being applied to predetermined areas of said' housing.

15. A self-contained electric hand lamp or flashlight comprising, in combination, a rigid tubular casing having a cap removably coupled to one end thereof; a reflector carriedby the other end of said casing; an electric lamp having its filament located in front of said reflector; a battery within said casing and in circuit with said lamp; switch mechanism controlling the flow of current from said battery through said filament, said mechanism having an operating element mounted on said casing; and a normally fluid tight housing wholly enclosing said casing, reflector, lamp, battery and switch mechanism, said housing comprising a tubular body consisting of waterproof and electrically non-conductive material, said tubular body being unitary and open at both ends and having its inner surface engaging the outer surface of said casing, the area of said tubular body overlying said operating element being flexible and depressible inwardly to actuate said operating element to close said circuit, said housing also comprising a cap of waterproof and electrically non-conductive material closing the bottom end of said tubular body and closely fitting and enclosing the cap of said casing, said caps being removable for the insertion and removal of a battery in said casing, said housing also comprising a transparent and fluid impervious cover removably secured to the other open end of said tubular body and tightly closing the latter in front of said reflector and .said lamp, portions adjacent the opposite ends of said tubular body normally forming fluid tight joints with said cover and with the cap of said housing, respectively, to render said housing fluid tight throughout and thereby exclude fluid from said casing, reflector, lamp, battery, and switch mechanism.

16. A hand lamp or flashlight as claimed in claim 15, in which said switch mechanism includes means to retain said operating element in its circuit-closing position, and said tubular body includes a flexible area adapted to be depressed inwardly to restore said operating element to its circuit-opening position.

17. A hand lamp or flashlight as claimed in claim 15, in which said switch mechanism includes resilient means cooperating with said operating element to retain the latter in its circuit-closing position, and said tubular body includes a flexible area adapted to be depressed inwardly to actuate said resilient means and return said operating element to its circuit-opening position. i

18. In a self-contained electric hand lamp or flashlight, the combination with an inner casing of metal adapted to receive a battery; and an outer housing of flexible rubber adapted to receive said casing; a lens associated with one end of said housing; a switch, and a lamp unitarily associated with said casing; said casing comprising an inner closure cap; and said housing comprising an outer closure cap; said outer closure cap being removable to expose said inner closure cap; and said inner closure can being removable to expose the interior of said casing, the arrangement being such that the flashlight normally is fluid tight.

19. In a flashlight, the combination of an inner unit and an outer unit; said inner unit comprising a battery casing consisting of a tube and a sleeve threaded together for relative rotational movement to longitudinally adjust said tube relative to said sleeve, a reflector on said. sleeve, a lamp on said tube, and an end cap on said tube; said outer unit comprising a lens, and a flexible water-proof housing consisting of a tube and an end cap which is removable to expose a portion of said inner unit for focusing adjustment.

20. In a flashlight, the combination of an inner unit and an outer unit; said outer unit comprising a lens, a flexible tube, and a flexible cap; and said inner unit comprising a metal casing and a metal cap; said casing consisting of a metal sleeve longitudinally movable but rotationally fixed within said flexible tube, and a metal tube rotationally and longitudinally movable within said flexible tube; a reflector on said sleeve; a lamp on said metal tube; the lamp being focused by shifting said metal tube within said flexible tube while said flexible tube is in frictional engagement with said sleeve; and a switch on said sleeve underlying said flexible tube.

' 21. A self-contained electric hand lamp or flashlight comprising: a focusing assembly; and

a flexible normally fluid tight housing completely enclosing the same; said focusing assembly being operable by frictionally engaging thewall of said flexible housing with a part of said focusing assembly while another part is shifted relative thereto within said housing.

22. In a flashlight, a hollow fluid tight housing having a transparent closure at one end thereof, means to support an electric light bulb within and wholly enclosed by said housing and closure, a battery in said housing, means for electrically connecting said bulb and said battery, said last named means including electric conductive means secured to said transparent closure, said last electrical conductor member secured to saidtransparent closure, said last named means being so constructed and arranged on said transparent closure that the electrical connection. between the socket and battery isbroken when the transparent closure becomes cracked, broken or is removed.

WILLIAM M. LENNAN.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2540683 *Feb 1, 1949Feb 6, 1951Anglo Iranian Oil Co LtdFlashlight switch
US2632094 *Feb 7, 1949Mar 17, 1953Robert G AkerleyFlashlight having a sealed flexible casing
US2728844 *Feb 25, 1954Dec 27, 1955Terney Ewald WHand-grip energized electric cigarette lighter
US2804541 *Apr 16, 1954Aug 27, 1957Otto W SchotzFlashlight
US2837630 *Aug 25, 1955Jun 3, 1958Torch Mfg CorpWaterproof flashlight
US3033942 *Jul 1, 1957May 8, 1962Leich Electric CoCordless switchboard
US4748544 *Aug 26, 1986May 31, 1988Ince Rex D ITorch
US5601359 *May 25, 1995Feb 11, 1997Streamlight, Inc.Flashlight having resilient sleeve
US5678921 *Dec 6, 1994Oct 21, 1997Bright Star Industries, Inc.Flashlight
US6814465 *Sep 19, 2002Nov 9, 2004Foersythe John DSecurity flashlight and method
US8250763Feb 18, 2010Aug 28, 2012The Gillette CompanyBattery-operated razor
EP1875531A1 Apr 11, 2006Jan 9, 2008The Gillette CompanyBattery-operated appliances
Classifications
U.S. Classification362/158, 200/60, 362/189, 362/205, 200/406
International ClassificationF21L4/00
Cooperative ClassificationF21L15/06, H01M2/1055, F21L4/00
European ClassificationF21L4/00, F21L15/06, H01M2/10C2C2