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Publication numberUS2259106 A
Publication typeGrant
Publication dateOct 14, 1941
Filing dateNov 16, 1940
Priority dateNov 16, 1940
Publication numberUS 2259106 A, US 2259106A, US-A-2259106, US2259106 A, US2259106A
InventorsHager Gustave G
Original AssigneeHager Gustave G
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Switch mechanism
US 2259106 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

SWITCH MECHANISM Filed Nov. 16, 1940 RNEY Patented Oct. 14, 1941 UNITED STATES .PATENT IoFFIc-E IJSWHCAMSM v Application November 16, 1940, Serial No. 365,885

4 Claims.

My invention relates generally to switch mechanisms, and particularly to switch mechanisms for making and breaking electrical circuits. As will be apparent from the following specification thereof, my invention is capable of many uses and applications, and it is only for purposes of convenience and not for limitation that I describe same in relation to an electric flash light. My invention is to be limited only by the scope of the annexed claims.

The main object of my invention is the provision of a switch mechanism, certain parts f which are screw-threadedly secured together, which parts are slidable laterally with respect to each other to make and break the circuit.

Another object of my invention is the provision of a switch mechanism, certain parts of which are screw threaded together, the threads being of such construction as to permit lateral' sliding movement of the parts relative to each other.

A further object of my invention is the provision of a switch mechanism, the component parts of which are screw-threadedly secured together,

and in which the width of each of the individual threads is but a fraction of the width of the space or distance between the threads, so as to provide room for lateral sliding movement of the screwed together parts relative to each other.

Other objects of my invention will in part be obvious, and others will be pointed out specifically in connection with the following description of an illustrative embodiment.

In the drawings annexed hereto and forming a part hereof:

The figure is a central longitudinal cross-sectional view of one form of device constructed according to and embodying my invention.

Reference numeral I0 indicates the device generally, which comprises a cylindrical casing I2 and a circular head portion I4, fitting onto the casing. One end of casing I2 is partially closed, as by means of an inwardly extending annular shoulder I6, defining a central aperture I8. The other end of casing I2 is provided on its outer surface with a square male thread 22, the width of each individual thread 24 being but a fraction of the width of the inter-thread groove 26, for the purposes to be explained below,

Head portion I4 is also circular, of such diameter as to fit onto casing I2, and the leading end 28 thereof is formed with an annular, inwar-dly extending shoulder 30, providing a circular opening 32 through which the light from within the casing may be projected. The other end 34 of 4.. fik) head I4 is provided, on its inner surface, with a square thread 36, and here again the width of each individual thread 38 is a fraction of the width of the inter-thread grooves 40; the pitch and dimensions of threads 22 and 36 being the same.

The battery 60 is disposed within easing I2, and the bulb and reflector assembly are mounted Within head I4. The lens 40 is first disposed within head I4, and secured against shoul-der 30 by means of split ring 42. The bulb 44 is threaded into reflector 46, and placed within head I4 against shoulder 48. A flat circular plate is provided and disposed within casmg I2 against shoulder I6. A circular coil spring 52 is then fitted into casing I2 against plate 50, and an elongated flat member link 54 is provided eX- tending from spring 52 in the bottom of casing I2 to the top of casing I2 at which point it is held in position against sidewise movement within the guideway formed by a pair of walls 56, and also by a bent over tip end portion 58 thereof.

By my arrangement, the head and casing may be moved laterally with respect to each other to make and break the circuit. The circuit may be made or broken in other ways.

When the two end portions I2 and I4 are screwed together, as shown in full lines in Figure 1, the battery and reflector and link assembly will all be held in their illustrated positions against dislodgment. When it is desired to complete the circuit, all the way from battery 60, through coil spring 52, link 54, reflector 48, bulb 44, back to battery 60, the head member assembly I is moved or shifted laterally against casing I2 into the dotted line position shown in the drawing. This sliding movement, against the tension of spring 52, brings the underside of reflector 48, of conductive material, into contact with the leading and bent-over end l58 of link 54, also of conductive material, completing the circuit. As an alternative method, plate 50 is pushed inwardly, through opening I8. This forward movement, tensioned by spring 52, will shift battery 6i! and link end 58 forward until contact is made against the underside of reflector 48 completing the circuit.

The end members I2, I4 are always screwthreadedly secured together, yet are slidably or shiftably movable laterally with respect to each other, and it is the provision of my particular type and size and width of thread which permits this relative lateral movement in the making and breaking of the circuit. Casing I2 and head I4 may be formed, as by molding or otherwise, of any suitable material, and the other parts of my device are of such simple construction as to permit of inexpensive and simple manufacture and assembly.

Having now described my invention, what I claim and desire to secure by Letters Patent is:

1. A switch mechanism for an electrical circuit comprising a pair of members screw-threadedly secured together, and means to permit relative lateral movement between said members to make and break the circuit, which means com'- prise a loose lateral engagement between the screw-threadedly secured together members.

2. A switch mechanism comprising a pair of members, screw thread means to secure same together, and a loose lateral t between the screw threads to permit shifting of said members laterally with respect to each other.

3. A switch mechanism comprising a pair o f members and screw thread means on each thereof to secure same together, the width of each thread being a fraction of the width between the threads.

4. A switch mechanism comprising a pair of members, screw threads on the outside of one and screw threads on the inside of the other, said members being threadedly secured together, the width of the respective threads being but a fraction of the distance between the threads, said secured-together members being relatively 15 shiftable laterally to make and break a circuit.

GUSTAVE G'. HAGER.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2431518 *Jul 17, 1944Nov 25, 1947Standard Molding CorpWaterproof flashlight
US3176092 *Apr 2, 1962Mar 30, 1965Arthur S LukasekFlashlight switch construction with rotatable contact structure
US4176263 *Dec 23, 1977Nov 27, 1979Rousseau Jean PierreSwitch for pocket torch
US4777582 *Sep 16, 1987Oct 11, 1988Streamlight, Inc.Micro-flashlight
US4823242 *Jul 6, 1988Apr 18, 1989Mag Instrument, Inc.Double switch miniature flashlight
US4888670 *Mar 9, 1988Dec 19, 1989Streamlight, Inc.Micro-flashlight
US5121308 *Dec 19, 1990Jun 9, 1992Mag Instrument, Inc.Miniature flashlight with two switches
US5126927 *Jul 22, 1991Jun 30, 1992The Brinkmann CorporationFlashlight having improved bulb enclosure
US5193898 *Jun 8, 1992Mar 16, 1993Mag InstrumentsRechargeable miniature flashlight
US5267130 *Jan 22, 1993Nov 30, 1993Mag Instrument, Inc.Rechargeable miniature flashlight
US5455752 *Nov 30, 1993Oct 3, 1995Mag Instrument, Inc.Rechargeable miniature flashlight
US5528472 *Oct 3, 1995Jun 18, 1996Mag Instrument, Inc.Rechargeable miniature flashlight
US5590951 *Dec 21, 1994Jan 7, 1997Laser Products Ltd.Switch-less flashlights
US5629105 *Nov 24, 1992May 13, 1997Laser Products CorporationFlashlights and other battery-powered apparatus for holding and energizing transducers
US5642932 *Dec 22, 1994Jul 1, 1997Laser Products CorporationCombat-oriented flashlight
US5836672 *Jun 18, 1996Nov 17, 1998Mag Instrument, Inc.Rechargeable miniature flashlight
US6086219 *Nov 16, 1998Jul 11, 2000Mag Instrument, Inc.Rechargeable miniature flashlight
US6296368Jul 10, 2000Oct 2, 2001Mag Instrument, Inc.Rechargeable miniature flashlight
US6457840Sep 27, 2001Oct 1, 2002Mag Instrument, Inc.Rechargeable miniature flashlight
US6468127Oct 16, 2001Oct 22, 2002New Bright Industrial Co., Ltd.Toy vehicle with wireless battery switch
US6905223Aug 10, 2001Jun 14, 2005Mag Instrument, Inc.Flashlight
US7001041Dec 10, 2001Feb 21, 2006Mag Instrument, Inc.Flashlight
US7410272Dec 1, 2006Aug 12, 2008Mag Instrument, Inc.Lighting device
US8147090Sep 15, 2008Apr 3, 2012Mag Instrument, Inc.Flashlight
US8197083Aug 11, 2008Jun 12, 2012Mag Instrument, Inc.Lighting device
US8770784Apr 24, 2012Jul 8, 2014Mag Instrument, Inc.Lighting device
USRE40027 *Nov 24, 1992Jan 22, 2008Surefire, LlcFlashlights and other battery-powered apparatus for holding and energizing transducers
USRE40171Feb 27, 2003Mar 25, 2008Mag Instrument, Inc.Tubular barrel-shaped flashlight having rotatable switching assembly and focusing and defocusing capability
EP0340047A2 *May 2, 1989Nov 2, 1989Mag Instrument Inc.Single cell flashlight
Classifications
U.S. Classification200/60, 362/205
International ClassificationF21L4/00
Cooperative ClassificationF21L7/00
European ClassificationF21L7/00