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Número de publicaciónUS3310668 A
Tipo de publicaciónConcesión
Fecha de publicación21 Mar 1967
Fecha de presentación20 Oct 1964
Fecha de prioridad20 Oct 1964
Número de publicaciónUS 3310668 A, US 3310668A, US-A-3310668, US3310668 A, US3310668A
InventoresSidney Schwartz
Cesionario originalBantam Lite Inc
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos: USPTO, Cesión de USPTO, Espacenet
Miniature flashlight with key attachment
US 3310668 A
Resumen  disponible en
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Marchm, 1967 S CHW Z 3,310,668

MINIATURE FLASHLIGHT WITH KEY ATTACfiMENT Filed Oct. 20, 1964 INVENTOR. 610N157 SCI/M4972 United States Patent 3,310,668 MINIATURE FLASHLIGHT WITH KEY ATTACHMENT Sidney Schwartz, New York, N.Y., assignor to Bantam- Lite, Inc, New York, N.Y., a corporation of New York Filed 0st. 20, 1964, Ser. No. 405,119 Claims. (Cl. 240-6.4)

This invention relates to miniature flashlights and more particularly is directed to such illuminating devices combined with means for attachment to a key handle.

Among the objects of the invention is to provide an improved miniature flashlight construction of the character described having meansfor mounting the flashlight on the handle of a key to direct a light beam from its light bulb along the longitudinal axis of the key to illuminate the keyhole and having a finger pressure actuated switch for energizing the bulb located for convenient operation while simultaneously gripping the flashlight and key between thumb and forefinger for keyhole insertion, which flashlight shall comprise few and simple parts that are relatively inexpensive to manufacture and assemble in quantity production, which flashlight shall include a molded plastic case coacting in a novel manner with a spring metal switch plate and key anchor element, which flashlight shall be neat in appearance, rugged in construction, and convenient to mount on the key handle, and which shall be practical and eflicient to a high degree in use.

Other objects of the invention will in part be obvious and in part hereinafter pointed out.

The invention accordingly consists of features of construction, combination of elements and arrangement of parts which will be exemplified in the construction hereinafter'disclosed, the scope of the application of which will be indicated in the claims following.

In the accompanying drawing in which an illustrative embodiment of the invention is shown:

FIG. 1 is a bottom plan view of the flashlight constructed to embody the invention shown mounted on the handle of a key.

FIG. 2 is a sectional view taken on line 22 in FIG. 1 showing details of the interior construction.

FIG. 3 is a front view of the flashlight and key as seen substantially on line 33 in FIG. 2, and

FIG. 4 is an exploded view showing the casing, cartridge and switch plate and key anchor element comprising the flashlight shown in FIGS. 1 to 3, inclusive.

Referring in detail to the drawing, denotes a key and miniature flashlight combination wherein key 11 mounts a miniature flashlight 12 on its handle 11a. Flashlight 12, constructed to embody the invention, is seen in FIG. 4 to comprise a casing 13, a switch plate and key anchor element 20 and cartridge unit 25. A

Casing 13 is here shown as an integral open top boxlike structure which may preferably be molded of any suitable plastic resinous material, as for example, polystyrene, and having similar opposite side walls 14, front wall 15, rear wall 16 and bottom wall 17. Front wall 15 has a centralized cutout 15a which may extend to the open top of casing 13. Rear wall 16 has a centralized cutout 16a spaced from the open top providing a crosspiece 16b. Bottom wall 17 has a relatively large opening 17a and carries a tab 18 which is attached along the rear thereof to bottom Wall 17 and extends forwardly in offset parallel relation to underlie opening 17a. Bottom wall 17 and rear wall 16 may also be integrally formed with a rearwardly projecting link 19 having a central opening 19a for attachment to a keychain or the like '(not shown). Cartridge unit 25 may be of any suitable construction having a light bulb 26 located in the front surface thereof "ice and a pressure actuated switch 27 located in the adjacent top surface. As here shown cartridge unit 25 is a battery-bulb-switch unit similar to those shown and described in my copending application Ser. No. 298,210 filed July 29, 1963, and entitled Miniaturized Flashlight With Replacement Cartridge Unit. Cartridge unit 25 is seen to comprise a holder 25a of any suitable electrically nonconductive resinous plastic having a cavity sized and shaped to accommodate and securely retain disc shaped miniature battery 28 oriented with its center terminal exposed for contact by switch 27. Light bulb 26 may be of the lens tipped type having a pair of pigtail leads, one of which is suitably electrically connected, as by spot welding, to the leaf spring which comprises switch 27, the other lead being likewise electrically connected to the bottom terminal of battery 28, as is clear from FIG. 4.

Switch plate and key anchor element 20, as seen in FIG. 4, may be made of a suitable leaf spring sheet metal having a corrosion resistant finish, such as brass, chrome or precious metal plating, and is stamped and formed into a substantially U-sha-ped configuration having a hollow sized for receiving cartridge 25 therein. Element 20 has two opposite walls or plates 21 and 22 interconnected by a substantially right angular intermediate section 23. Plate 21, serving as a top wall closure and depressible switch plate, is contoured to fit into the open top of casing 13 and has a rear end downwardly bent portion 21a terminating in a rearwardly projecting tongue 21!), the

latter being offset from the plane of plate 21 by bent portion 21a to extend into rear wall cutout 16a. Tongue 21b normally abuts crosspiece 16b to limit the upward movement of plate 21 to a rest position flush with the top of casing 13. The rear region of plate 21 engages and closes underlying switch 27 when flexed downwardly, that is, inwardly, from the rest position in the direction of the arrow shown in FIG. 3, tongue 21b being free to move away from crosspiece 16b into cutout 16a.

Intermediate section 23 extends between the front of cartridge unit 25 and casing front wall 15 and has an opening 23a aligning with cutout 15a into which opening and cutout the lens tip of bulb 26 may project.

Plate 22, serving as an anchoring means for retaining the parts of flashlight 12 in assembly as well as for mounting the latter on a key handle 11a, may be narrower than plate 21, being shaped and sized to lie along the interior surface of casing bottom wall 17 and having a step 22a to position a rear portion 22b in bottom wall opening 17a spaced from and substantially parallel to tab 18. Plate rear portion 22b is formed with a depression 22c extending toward tab 18, depression 220 being provided with an opening 22d having a rim formed to engage the threads of screw 24 which extends through an aligned openinglSa in tab 18.

The initial assembly of flashlight 12 is readily accomplished by first sliding cartridge unit 25 into the open side of switch plate and keyholder element 20 so that switch 27 faces plate 21 and light bulb 26 is positioned to extend into opening 230.. Element 20 with cartridge 25 so positioned therein is then placed into the open top of casing 13 by first inserting tongue 21b into rear wall cutout 16a and then dropping intermediate section 23 into place behind casing front wall 15. Screw 24 is then inserted through tab opening 18a and threaded into opening 22d. Tightening of screw 24 anchors element 20 in position against casing bottom wall 17 retaining all the parts in assembly. Application of pressure to depress the rear region of plate 21 will be seen to also depress switch 27 to make electrical contact with the center terminal of battery 28 to energize bulb 26.

, To mount flashlight 12 on the handle 11a of key 11, screw 24 is first removed from opening 22d. The key handle 11a is then inserted in the slot between tab 18 s,s10,ses

a and plate rear portion 22b. Since element with cartridge is now loose in casing 13, depression 220 may be urged upwardly to clear the key handle 11a permitting the handle opening 11b to register with tab opening 18a and receive depression 220 therein. Replacement and tightening of screw 24 completes the assembly of the key and flashlight combination 10.

The improved miniature flashlight with key attachment herein disclosed is seen to achieve the several objects of the invention and to be well adapted to meet conditions of practical use. As various possible embodiments might be made in the above invention, and as various changes might be made in the disclosed construction, it is to be understood that all matters herein set forth or shown in the accompanying drawing are to be interpreted as illustrative and not in a limiting sense.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. A miniature flashlight of the character described comprising a casing formed with an interior chamber and having an open top wall, a partially open opposite bottom wall and a front wall having an aperture communicating with said chamber and being located beneath said open top wall, a tab having an opening therein, said tab being attached to the casing adjacent the rear thereof to extend in spaced parallel relation to the bottom wall overlying said bottom wall partial opening, said bottom wall and tab forming a slot to receive a handle of a key therein with a key handle opening in registered alignment with said tab opening, a battery, electric light bulb and switch for closing a circuit from the battery to the bulb disposed in said interior chamber, the bulb being aligned with said front wall aperture to project a light beam along the length of a key positioned in said slot, said switch being located for finger pressure actuation through said open top wall, a spring closure for said top wall opening adapted to be inwardly deflected for engaging and closing said switch, a plate located within said interior chamber extending across said bottom wall partial opening and being formed with a female threaded portion aligning with said tab and key handle openings, and a removable screw extending through said tab and key handle openings and engaging said female threaded portion to secure said key handle in said slot.

2. A miniature flashlight of the character described comprising an integrally molded casing having an open top wall, a partially open opposite bottom wall, an apertured front wall and a rear wall having a centralized cutout spaced from the open top providing a crosspiece, a tab having an opening therein, said tab being integrally molded with the casing bottom wall adjacent the rear thereof and extending forwardly in spaced parallel relation to the bottom wall and substantially covering said bot-tom wall partial opening, said bottom wall and tab forming. a slot to receive a handle of a key therein with a key handle opening in registered alignment with said ta b opening, a battery, electric light bulb switch for closing a circuit from the battery to the bulb disposed within the casing, the bulb being aligned with said front wall aperture to project a light beam along the length of a key positioned in said slot, said switch being located for finger pressure actuation through said open top wall, a spring closure for said top wall opening having a rear end portion extending into said rear wall cutout to engage said crosspiece and limit outward movement of said spring closure to a normal predetermined position in said top wall opening, said spring closure being inwardly deflectiible by finger pressure for engaging and closing said switch, a plate extending across said bottom wall partial opening and being formed with a female threaded portion aligning with said tab and key handle openings, and a removable screw extending through said tab and key handle openings and engaging said female threaded portion to secure said key handle in said slot.

3. In a miniature flashlight of the character described,

an integrally molded casing having an open top wall, a partially open opposite bottom wall, and an apertured front wall, a tab having an opening therein, said tab being integrally molded with the casing bottom wall adjacent the rear thereof and extending forwardly in spaced parallel relation to the bottom wall and substantially covering said bottom wall partial opening, said bottom wall and tab forming a slot to receive a handle of a key therein with a key handle opening in registered alignment with said tab opening, a switch plate and key anchor element formed of sheet spring material bent into a substantially U-shaped configuration providing a top wall closure plate interconnected by a substantially right angular intermediate section to an opposite key anchoring plate, said top wall closure plate extending across said top wall opening and being inwardly deflectible by finger pressure to actuate an underlying switch, said key anchoring plate extending across said bot-tom wall partial opening and being formed with a female threaded portion aligning with said tab and key handle openings, and a removable screw extending through said tab and key handle openings and engaging said female threaded portion to simultaneously secure said key handle in said slot and retain said switch plate and key anchor element in position in said casing.

4. In a miniature flashlight of the character described, an integrally molded casing having an open top wall, a partially open opposite bottom wall, an apertured front wall and a rear wall having a centralized cutout spaced from the open top providing a crosspiece, a tab having an opening therein, said tab being integrally molded with the casing bottom wall adjacent the rear thereof and extending forwardly in spaced parallel relation to the bottom wall and substantially covering said bottom wall partial opening, said bottom wall and tab forming a slot to receive a handle of a key therein with a key handle opening in registered alignment with said tab opening, a switch plate and key anchor element formed of sheet spring material bent into a substantially U-shaped configuration providing a top wall closure plate interconnected by a substantially right angular intermediate section to an opposite key anchoring plate, said top wall closure plate extending across said top wall opening and having a rear end portion extending into said rear wall cutout to engage said crosspiece and limit outward movement of said closure plate to a normal predetermined position in said top wall opening, said key anchoring plate extending across said bottom wall partial opening and being formed with a female threaded portion aligning with said tab and key handle openings, and a removable screw extending through said tab and key handle openings and engaging said female threaded portion to secure said key handle in said slot and retain said switch plate and key anchor element in position in said casing.

5. A miniature flashlight of the character described comprising an integrally molded casing having an open top wall, a partially open opposite bottom wall, and an apertured front wall, a tab having an opening therein, said tab being integrally molded with the casing bottom wall adjacent the rear thereof and extending forwardly in spaced parallel relation to the bottom wall and sub stantially covering said bottom wall partial opening, said bottom wall and tab forming a slot to receive a handle of a key therein with a key handle opening in registered alignment with said tab opening, a battery-light bulbswitch unit having the light bulb positioned in a front wall and a dep-ressible switch located in a top surface thereof, a switch plate and key anchor element formed of sheet spring material bent into a substantially U-shaped configuration providing a top wall closure plate interconnected by a substantially right angular intermediate section to an opposite key anchor plate, said element being positioned in said casing with said top wall closure plate extending across said top wall opening and being resiliently inwardly depressibie, said intermediate section facing said casing front wall and having an opening in register with said aperture, said unit being positioned between sad closure plate and key anchor plate with the front wall thereof facing said intermediate section to project a light beam from said bulb through said aperture and intermediate section opening and along the length of the key, said depressible switch being located for actuation by said inWa-rd depression of said top wall closure plate to close the switch and light the bulb, said key anchoring plate extending across said bottom wall partial opening and being formed with a female threaded portion aligning 10 with said tab and key handle openings, and a removable screw extending through said tab and key handle openings and engaging said female threaded portion to simultaneously secure said key handle in said slot and retain said switch plate and key anchor element and said unit in position in said casing.

References Cited by the Examiner UNITED STATES PATENTS 1,972,879 9/1934 Flintermann 2406.4 2,738,668 3/1956 Rock 240-6.4 3,119,564 1/1964 Zalman 2406 4 NORTON ANSI-IER, Primary Examiner.

C. C. LOGAN, Assistant Examiner.

Citas de patentes
Patente citada Fecha de presentación Fecha de publicación Solicitante Título
US1972879 *11 Nov 193111 Sep 1934Gerhard FlintermannKey container
US2738668 *8 Oct 195420 Mar 1956Rock Reginald HKey assembly
US3119564 *6 Ago 196228 Ene 1964Flex Electric Products IncCombination key holder and illuminating means
Citada por
Patente citante Fecha de presentación Fecha de publicación Solicitante Título
US4085315 *12 Feb 197618 Abr 1978Heinz WolterLight connectable with a key
US4276582 *26 Dic 197830 Jun 1981Lock Light CorporationKey with light
US4303966 *22 Jun 19791 Dic 1981Heinz WolterLight connectable with a key
US4521833 *17 Ago 19844 Jun 1985Heinz WolterLight
US4562712 *6 Feb 19847 Ene 1986Heinz WolterKey
US4787016 *12 Feb 198722 Nov 1988Song Chang JLight attachable to a key
US4964023 *28 Dic 198816 Oct 1990Junichi NishizawaHolder with semiconductor lighting device
US5181927 *31 Jul 199126 Ene 1993Song Chang JFrame lock mechanism for a key light
US5457613 *8 Jun 199410 Oct 1995Lumatec Industries, Inc.Peripherally sealed card-like flashlight device
US5463539 *10 Dic 199331 Oct 1995Lumatec Industries, Inc.Miniature pocket flashlight with lens module and outer flexible sheath
US5515248 *9 Jun 19957 May 1996Canfield; Madeline M.Thin adhesively attached key light device
US5927846 *6 Ene 199527 Jul 1999Sinclair; IainDisposable planar flashlight
US6182484 *3 Dic 19986 Feb 2001Heinz WolterKey holder with lamp
US622422829 Jul 19991 May 2001W. Richard FrederickKey light
US63578901 Sep 200019 Mar 2002Armament Systems And Procedures, Inc.Miniature LED flashlight
US643569522 Ene 200120 Ago 2002Lumatec Industries, Inc.Peripherally sealed card-like flashlight device having light generating module and holder therefor seated in cavity of main body structure
US645443523 Mar 200124 Sep 2002Lumatec Industries, Inc.Card-shaped flashlight device with lamp, flasher and/or buzzer features
US6530672 *28 Jun 200111 Mar 2003Robert D. GalliMiniature flashlight
US67091293 Mar 200323 Mar 2004Robert GalliDual mode switch mechanism for flashlights
US67493179 Nov 200115 Jun 2004Armament Systems And Procedures, Inc.Miniature led flashlight
US67866167 Ago 20037 Sep 2004Armament Systems And Procedures, Inc.LED flashlight with switch separate from panel
US679667218 Jul 200328 Sep 2004Armament Systems And Procedures, Inc.LED flashlight with interlocking clip
US67998623 Ene 20035 Oct 2004Robert D. GalliMiniature flashlight
US68026202 Dic 200212 Oct 2004Robert GalliFlashlight housing with a key ring extension
US685775723 May 200322 Feb 2005Armament Systems And Procedures, Inc.LED flashlight with side panels inside structure
US686061523 May 20031 Mar 2005Armament Systems And Procedures, Inc.LED flashlight with integral keyring clip
US69456678 Jul 200320 Sep 2005Armament Systems & Procedures, Inc.LED flashlight with medallion in panel
US69514108 Jul 20034 Oct 2005Armament Systems And Procedures, Inc.LED flashlight with die-struck panel
US69599975 Ago 20031 Nov 2005Armament Systems & Procedures, Inc.LED flashlight having a dissimilar frame and panel
US697176231 Ene 20036 Dic 2005Robert GalliDual mode switch mechanism for flashlights
US697676622 Dic 200320 Dic 2005Robert GalliDual mode switch mechanism for flashlights
US69913445 Ago 200331 Ene 2006Armament Systems & Procedures, Inc.LED flashlight having a clip made of a resilient material
US70180644 Oct 200428 Mar 2006Emissive Energy CorporationMiniature flashlight
US703695026 Nov 20032 May 2006Element Extreme, LlcIlluminated key blank
US71473447 Ago 200312 Dic 2006Armament Systems & Procedures, Inc.LED flashlight with switch element in side surface
US7159993 *26 Oct 20059 Ene 2007Ta-Wei LuAuxiliary light device for a key
US72170037 Jul 200315 May 2007Armament Systems & Procedures, Inc.LED flashlight including a housing having a translucent portion
US906142725 Ago 201123 Jun 2015Interdesign, Inc.Multi-tool with artificial key and LED
US20030072151 *3 Ene 200317 Abr 2003Galli Robert D.Miniature flashlight
US20030076674 *2 Dic 200224 Abr 2003Robert GalliFlashlight housing with a key ring extension
US20030090899 *23 Ene 200315 May 2003Galli Robert D.Miniature flashlight
US20030147239 *31 Ene 20037 Ago 2003Robert GalliDual mode switch mechanism for flashlights
US20030198042 *3 Mar 200323 Oct 2003Robert GalliDual mode switch mechanism for flashlights
US20030202355 *23 May 200330 Oct 2003Parsons Kevin L.LED flashlight with side panels inside structure
US20040017679 *23 May 200329 Ene 2004Parsons Kevin L.LED flashlight with integral keyring clip
US20040017680 *18 Jul 200329 Ene 2004Armament Systems And Procedures, Inc.LED flashlight with interlocking clip
US20040022056 *9 Jul 20035 Feb 2004Armament Systems And Procedures, Inc.LED flashlight with translucent panel
US20040095750 *5 Ago 200320 May 2004Armament Systems And Procedures, Inc.LED flashlight having a dissimilar frame and panel
US20040095756 *8 Jul 200320 May 2004Armament Systems And Procedures, Inc.LED flashlight with die-struck panel
US20040105253 *7 Jul 20033 Jun 2004Armament Systems And Procedures, Inc.LED flashlight with multi-color decorating
US20040105257 *8 Jul 20033 Jun 2004Armament Systems And Procedures, Inc.LED flashlight with medallion in panel
US20040150990 *22 Dic 20035 Ago 2004Robert GalliDual mode switch mechanism for flashlights
US20050047121 *4 Oct 20043 Mar 2005Galli Robert D.Miniature flashlight
US20050073831 *7 Ago 20037 Abr 2005Armament Systems And Procedures, Inc.LED flashlight with switch element in side surface
US20050078478 *5 Ago 200314 Abr 2005Armament Systems And Procedures, Inc.LED flashlight having a clip made of a resilient material
US20050231940 *20 Jun 200520 Oct 2005Galli Robert DMiniature flashlight
US20060285321 *24 Ago 200621 Dic 2006Armament Systems & Procedures, Inc.LED flashlight having a dome plate switch
US20070030668 *10 Ago 20068 Feb 2007Parsons Kevin LLED flashlight with switch element in side surface
USD772031 *6 Abr 201522 Nov 2016Ningbo Worth International Trade Co., Ltd.Bottle opener and light
DE3614512A1 *29 Abr 19865 Nov 1987Vdo SchindlingFlat handle
WO1994004868A1 *20 Ago 19923 Mar 1994Prince Song InternationalFrame lock mechanism for a key light
Clasificaciones
Clasificación de EE.UU.362/116, D26/38
Clasificación internacionalE05B17/00, E05B17/10
Clasificación cooperativaE05B17/103
Clasificación europeaE05B17/10B