Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3729923 A
Publication typeGrant
Publication dateMay 1, 1973
Filing dateMar 11, 1971
Priority dateMar 11, 1971
Publication numberUS 3729923 A, US 3729923A, US-A-3729923, US3729923 A, US3729923A
InventorsF Brigliano, E Vogt, E Marmoud
Original AssigneeKuhn F Sa
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Wrist watch with dial illuminating
US 3729923 A
Abstract
A wrist watch has a glass fitted in a snap. An inwardly facing groove in the snap, normally closed by the glass, houses a miniature bulb connected by wires passing through watertightly-closed openings communicating the snap with the outside of the watch case. The wires are connected to batteries housed in extensions to the watch case, said extensions including a switch to enable illumination of the bulb by a pressure on the wearer's wrist.
Images(1)
Previous page
Next page
Description  (OCR text may contain errors)

. May 1,1973

States Patent 1 1 white Brigliano et al.

m 8 s MN Mm WT WA Wm ML P D- A R m0 S .m n 5A %P N am mm 4 3 L m H n G H cm TT A m T Wu w [75] Inventors: Florent Brigliano, Ernest Vogt,

Edmond Marmoud an of Geneva, 343,921 2/1960 Switzerland.............................58/5O Switzerland [73] Assignee: Fabrique de boites de montres Primary Examiner-Richard B. Wilkinson Assistant Examiner-Edith C. Simmons Jackmon F. Kuhn SA, Geneva, Switzerland Att0rney-StepnO and Neilan Mar. 11, 1971 Appl. N0.: 123,336

[57] ABSTRACT A wrist watch has a glass fitted in a sna facing groove in the snap, normal [22] Filed:

p. An inwardly ly closed by the ass, houses a miniature bulb connected by wires passing through watertightly-closed openings commuwe 30 a 40 M C @43 20 16 M033 awn film 8 u 5% 0 n" 5 u 8 5 mm m m... a "m .L '0 W a UIF 11]] 2 8 555 [ll nicating the snap with the outside of the watch case.

58/90; 240/6.43 The wires are connected to batteries housed in extensions to the watch case, said extensions includin switch to enable illumination of the bulb b on the wearers wrist.

g a y a pressure UNITED STATES PATENTS 3 Claims, 2 Drawing Figures 3,018,614 Brien....................... .....58/23 BA X 1 WRIST WATCH WITI-I DIAL ILLUMINATING BACKGROUND OF TI-IE INVENTION This invention relates to wrist watches provided with dial-illuminating means.

It has already been proposed to illuminate the dial of a wrist watch by means of a miniature electric bulb mounted in a cavity of the glass. However, known watches of this, type have not given full satisfaction. In particular, it is not possible to change the watch glass without cutting or unsoldering at least one of the conducting wires leading to the bulb.

It has also been proposed to locate micro-batteries in hollow attatchments, the attatchments including housings for a bulb for illuminating the dial via conduits connecting the housings to a space in the watch case between the dial and the watch glass. In this type, the

attatchments form an integral part of the watch caseand are thus not removable which can constitute a serious drawback. Moreover, there is a loss of available light in the conduits, and the watertightness of the watch may be adversely affected.

In the other known types, the problem of-obtaining a good watertightness between the micro-batteries and the electric bulbs is also encountered.

Amongst other propositions for illuminating dialed instruments, it has been suggested to-place electrical bulbs in housings provided in a bevel in the case of the instrument to cause light to pass through a plate of transparent material mounted in the bevel. This system is complicated, and consequently costly, and is hardly suitable for application to a wrist-watch.

Generally speaking, these known dialilluminating means are not suitable for underwater divers watches.

SUMMARY OF THE INVENTION It is an object of theinvention to providev a wrist watch with dial-illuminating means which overcomes the aforementioned drawbacks.

A wristwatch with dial illuminating means according to the invention comprises a glass fitted in a snap. An inwardly facing groove in the snap, normally closed by the glass, houses a miniature bulb connected by wires passing through watertightly-closed openings communicating the snap with the outside of the watch case. The wires are connected to batteries housed in extensions to the watch case, said extensions including a switch to enable illumination of the bulb by a pressure on the wearers wrist.

Operation of these dial-illuminating means is reliable and is of simple construction, whilst enabling replacement of the glass without disturbing the feed circuit for the bulb. Moreover, the wrist watch according to the invention can be made watertight and can advantageously be used for underwater diving where illumination of the dial is particularly useful.

DESIGNATION OF THE DRAWINGS The accompanying drawings show, by way of exam-- ple, an embodiment of a wrist watch according to the invention. In the drawings:

FIG. 1 is a cross-section through the median plane of the wrist watch and bracelet; and

FIG. 2 is a cross-section on enlarged scale of a detail of FIG. 1.

2 DESCRIPTION OF A PREFERRED EMBODIMENT The wrist watch shown comprises a case including a middle 1 with a screwed back 2 and two diametrally opposed extensions 3, 3 in which are pivotally mounted two hollow lugs 4, 4 for fixing the ends 5, 5' of a watch bracelet. A glass 6 is mounted in known manner in a snap 7 provided for this purpose in the middle 1. A tension ring 8 holds the edge of the glass 6 tightly against snap 7. The watch is also provided with a dial, schematically represented by reference numeral 9.

An inwardly facing groove 10 is provided around the snap 7 and houses a miniature electric bulb 11 shown in detail in FIG. 2. Groove 10 is normally closed by the glass 6. The bulb 11 is mounted between two electrically insulating blocks 12 each urged by a spring 13 supported on an insulating member 14 fixed in the groove 10. A contact 15 is carried by each block 12 for the supply of current to the bulb 11, via each spring 13 and insulated conducting wires 16 and 17 connected to miniature batteries 18 and 18', as will be described in detail further on.

Passageways 19, 19' are provided through the middle 1 so that the groove 10 communicates with the exterior part of the case under the extensions 3, 3'. Conducting wire 16 passes through the passageway 19, and the wire 17 through passageway 19', and the two passageways are watertightly closed by resilient stoppers 20, 20 respectively. The wires 16 and 17 are connected to the bulb 11, wire 17 passing along and around the groove 10.

The hollow lugs 4, 4' are each pivotally mounted at one end on the case about a pin 21, 21 respectively, the other end being connected to the bracelet by means of a pin 22, 22. In each lug 4, 4 is housed an interchangeable block 23, 23 in plastic material in which is embedded amicro-battery l8, 18' respectively. The poles of the battery 18 are reversed in relation to those of battery 18' so that the two batteries are connected in series; to complete the circuit, one of the poles of each battery is connected to ground, i.e., to the watch case, by means of a flexible contact 24, 24', the other pole of battery 18 being connected to the wire 16 by a fixed contact 25, and the other pole of battery 18' being con nected to the wire 17 when a mobile contact 25 is applied thereagainst.

The wires 16 and 17 each carry a miniature plug, schematically shown by 26, 26', inserted in the blocks 23, 23', so as to come into contact with conductors leading to the contacts 25, 25 when the blocks are placed in the corresponding hollow lug.

To close the circuit of the bulb 11 to illuminate the dial 9, the user can press, with his wrist carrying the watch, the contact 25' against the battery 18'. This is made possible because of the reduced thickness of the material of block 23 at this location. For a divers watch, this pressure can be applied automatically by the water pressure when the diver plunges below a certain depth.

It would also be possible to provide a mercury contact-breaker incorporated in the block 23 or 23' so that the circuit can only be closed for a particular inclination of the watch. In the illustrated embodiment, a mercury contact breaker 30 is incorporated into the block 23 between a pole of the battery 18' and the corresponding wire 17.

The bulb 11 can easily be replaced, if necessary, by removal of the glass 6"and interchanging a new bulb in the place of a faulty one, without disturbing the feed circuit for the bulb. I

Many modifications are possible to the described wrist watch without departing from the scope of the appended claims. For example, the bulb 11 can be placed at any convenient location around the groove 10, or several bulbs could be connected in series around the groove. The groove need not extend around the entire periphery of the snap 7.

What is claimed is:

l. A wrist watch with dial-illuminating means, comprising a case, two diametrically opposed hollow lugs pivotally mounted on the case, means on the lugs for fixing a watch bracelet, a housing in each lug for an electrical battery enclosed in a mass of plastic material forming a surface for contacting a wrist on which the watch may be worn, one of said mass including a switch actuatable by pressure against said wrist, two insulated conducting wires each provided with a contactplug for connection with a pole of the corresponding battery, means for connecting the other pole of each battery to ground, a snap in the case, a glass held in the snap, an inwardly facing groove in the snap, said groove normally being closed by the glass, two openings each for the passageway of one of said wires connecting said groove to the outside of the case, means for fluidtightly closing said passageways, a mercury contact breaker housed in one of said masses of plastic material and connected between a pole of the battery in said one mass and the corresponding wire, and a miniature electric bulb housed in the groove, said two wires connecting the bulb to the batteries.

2. A wrist watch as claimed in claim 1, in which said firstand second springs and contacts are respectively housed in mobile third and fourth insulating blocks.

3. A wrist watch with dial-illuminating means, comprising a case, two diametrally opposed hollow lugs pivotally mounted on the case, means on the lugs for fixing a watch bracelet, a housing in each lug for an electrical battery enclosed in a mass of plastic material forming a surface for contacting a wrist on which the watch may be worn, one of said masses including a switch actuatable by pressure against said wrist, two insulated conducting wires each provided with a contact plug for connection with a pole of the corresponding battery, means for connecting the other pole of each battery to ground, a snap in the case, a glass held in the snap, an inwardly facing groove in the snap, said groove normally being closed by the glass, two openings each for the passageway of one of said wires connecting said groove to the outside of the case, said openings being diametrally opposed and terminating outside said case in the vicinity of said extensions, means for fluidtightly closing said passageways, and a miniature electric bulb housed in the groove, said bulb having first and second ends, the first end of the bulb being located near one of the openings, said two wires connecting the bulb to the batteries, one of said wires passing through said one opening and being connected to the first end of the bulb, and the other wire passing through the other opening, passing around said groove, and being connected to the second end of the bulb, said wires being supported in said groove on first and second insulating blocks, a contact on the first end of the bulb being connected to one wire by a first spring, and a contact on the second end of the bulb being connected to the other wire by a second spring.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3018614 *Dec 12, 1960Jan 30, 1962Brien AndreWatch dial illuminating device
US3224184 *Jun 22, 1964Dec 21, 1965Brien AndreWatch dial illuminating device
CH343921A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3783604 *Feb 5, 1973Jan 8, 1974Revision Traitement De I InforWrist watch with a dial-illuminating device
US3823550 *Apr 25, 1973Jul 16, 1974Time ComputerSolid state watch display switch
US3841080 *Nov 19, 1973Oct 15, 1974O Donald BWatch display switch
US3855784 *Jul 30, 1973Dec 24, 1974D FoellnerIlluminated time piece
US3866035 *Oct 1, 1973Feb 11, 1975Avco CorpCostume jewelry with light-emitting diode
US3871170 *Feb 20, 1974Mar 18, 1975Bergey John MSolid state watch display switch
US3911666 *Oct 21, 1974Oct 14, 1975Haber Terry MActuating mechanisms for wrist instruments
US3916613 *Mar 12, 1975Nov 4, 1975Timex CorpContacting, locating and exchanging means for energy cells in timepieces
US3921385 *Mar 19, 1974Nov 25, 1975Texas Instruments IncWatch having positioned controlled display actuator with delay
US3935701 *Mar 25, 1974Feb 3, 1976Citizen Watch Co., Ltd.Wristwatch with a time display control switch means
US3939640 *Dec 12, 1974Feb 24, 1976Kahn Leonard RSystem for illuminating the display of a wrist watch
US3943694 *Aug 16, 1974Mar 16, 1976Eta A.G. Ebauches-FabrikDivers' fluid-tight watch comprising an electric circuit
US3955356 *Mar 19, 1974May 11, 1976Texas Instruments IncorporatedWatch having positioned controlled display actuator
US3963885 *Feb 4, 1975Jun 15, 1976Andre Guy BrienGravity actuated miniature switch for watch having switch actuator magnetic retaining structure
US3971207 *May 19, 1975Jul 27, 1976Citizen Watch Co., Ltd.Packing means for a watch
US3975899 *May 5, 1975Aug 24, 1976Haber Terry MMulti-function watch casing
US3977176 *Aug 19, 1975Aug 31, 1976Citizen Watch Co., Ltd.Electronic watch structure
US4023347 *Oct 17, 1975May 17, 1977Haber Terry MWristwatch casing and band construction
US4095408 *Feb 24, 1977Jun 20, 1978Casio Computer Co., Ltd.Watch device
US4106677 *Aug 19, 1976Aug 15, 1978Hewlett-Packard CompanyWrist wearable electronic device with an engagedly stored selected tool
US4194355 *Feb 21, 1978Mar 25, 1980Citizen Watch Co., Ltd.Connection structure for watch case and band
US4237586 *Oct 20, 1978Dec 9, 1980Nsk-Warner K.K.Buckle device for safety belt
US4417819 *Jun 30, 1982Nov 29, 1983Timex CorporationWatchband light attachment for a wristwatch
US4910652 *Jul 17, 1989Mar 20, 1990Rhine Gary ECombination wrist watch and flashlight
US5515247 *Sep 8, 1994May 7, 1996Alexander Sze Wai ChanElectroluminescent strap suitable for releasably securing an object to a wrist
US5615179 *Jul 4, 1994Mar 25, 1997Seiko Epson CorporationElectronic apparatus with fitting band
US5760691 *Apr 18, 1996Jun 2, 1998Scubapro EuDiving measuring device in particular a diving computer
US6587400Feb 5, 2002Jul 1, 2003Henry LineBattery-powered wristwatch
WO1999035541A2 *Jan 9, 1999Jul 15, 1999Kindermann RolfTime measuring device
Classifications
U.S. Classification368/225, 368/294, 362/103, 362/802, 968/448, 968/213
International ClassificationG04C3/00, G04B19/30
Cooperative ClassificationG04B19/30, G04C3/002, Y10S362/802
European ClassificationG04C3/00K2, G04B19/30