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US3835309A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrical appliance powered by self-contained rechargeable battery

Assignee: Individual
•
Filing: 1972-11-15
•
Granted: 1974-09-10
•
Expires: 1992-11-15
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Abstract

Abstract Electrical appliance such as a pocket flashlight and the like powered by a self-contained rechargeable battery. The appliance is provided with means whereby the batteries thereof may be recharged by inserting an electrical plug on the appliance into the cigarette lighter receptacle of a motor vehicle. A device is also provided whereby the batteries of the appliance may be recharged from the electrical mains of a house. A flashlight made in accordance with the invention may have the lens thereof pivotally mounted so that when the lens is swung away from its operative, light-focusing position on the flashlight, it serves as a magnifying glass to facilitate the examination of a map or the like illuminated by the flashlight.

Inventors

  • 👤 W Witte
  • 👤 A Langer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 10:13
CPC Classifications
F; F21; F21L; F21L4/00; F21L4/08; F21L4/085

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 385 words
An electrical applicance powered solely by means of a rechargeable battery, said appliance having a housing within which the battery is disposed, and means mounted on the housing to charge the battery from a cigarette lighter receptacle of a vehicle, said last named means comprising a plug member on the housing and receivable in the cigarette lighter receptacle of the vehicle, and contact means on the plug member for establishing a battery-charging electrical connection between the battery and the electrical circuit of the vehicle when the plug member is inserted into the receptacle, said receptacle has side walls and a bottom wall, a contact on its said side walls and a contact on said bottom wall, the housing of the flashlight being formed at least in part as a metallic sleeve, said sleeve comprising at least one outward projecting member which is in contact with a pole of the battery of the flashlight and frictionally engages said side wall of the receptacle, the plug member of the flashlight having a contact on the outer, free end thereof adapted for engagement with an electrical connection on the contact on the bottom wall of the cigarette lighter receptacle, and an electrical light receiving socket having an electrically conducting base and a parabolic-hollow reflector body surrounding the lightbulb-receiving socket, said body being rotatably mounted on the housing, and comprising an electrical switch interposed between the battery and the lightbulb, said switch having a part which is selectively turned to on and off positions by the rotation of the reflector body with respect to the housing of the flashlight, said lightbulb-receiving socket has an electrically conducting base, and the electrical switch includes an inner metal shell connected to the electrically conducting sleeve of the housing of the flashlight, at least one contact connected to such sleeve, said contact being in the form of a leaf spring, and an electrically insulating cam connected to the reflector body of the flashlight so as to rotate therewith, said cam engaging said contact so as selectively to permit the inner end of the contact to engage the electrically conducting base of the lightbulb receiving socket whereby to energize the lightbulb, and to bend the contact point away from engagement with said contact of the light bulb receiving socket whereby to deenergize the lightbulb.
Claim 2
Dependent Claim 385 words
An electrical applicance powered solely by means of a rechargeable battery, said appliance having a housing within which the battery is disposed, and means mounted on the housing to charge the battery from a cigarette lighter receptacle of a vehicle, said last named means comprising a plug member on the housing and receivable in the cigarette lighter receptacle of the vehicle, and contact means on the plug member for establishing a battery-charging electrical connection between the battery and the electrical circuit of the vehicle when the plug member is inserted into the receptacle, said receptacle has side walls and a bottom wall, a contact on its said side walls and a contact on said bottom wall, the housing of the flashlight being formed at least in part as a metallic sleeve, said sleeve comprising at least one outward projecting member which is in contact with a pole of the battery of the flashlight and frictionally engages said side wall of the receptacle, the plug member of the flashlight having a contact on the outer, free end thereof adapted for engagement with an electrical connection on the contact on the bottom wall of the cigarette lighter receptacle, and an electrical light receiving socket having an electrically conducting base and a parabolic-hollow reflector body surrounding the lightbulb-receiving socket, said body being rotatably mounted on the housing, and comprising an electrical switch interposed between the battery and the lightbulb, said switch having a part which is selectively turned to on and off positions by the rotation of the reflector body with respect to the housing of the flashlight, said lightbulb-receiving socket has an electrically conducting base, and the electrical switch includes an inner metal shell connected to the electrically conducting sleeve of the housing of the flashlight, at least one contact connected to such sleeve, said contact being in the form of a leaf spring, and an electrically insulating cam connected to the reflector body of the flashlight so as to rotate therewith, said cam engaging said contact so as selectively to permit the inner end of the contact to engage the electrically conducting base of the lightbulb receiving socket whereby to energize the lightbulb, and to bend the contact point away from engagement with said contact of the light bulb receiving socket whereby to deenergize the lightbulb.
Claim 3
Dependent Claim 51 words
An electrical appliance in accordance with claim 1, wherein the body of the plug member is made of electrically insulating material and the metallic sleeve is telescoped thereabout, and comprising a conductor extending through said insulating body from said contact means of the plug member to one pole of the battery.
Claim 4
Dependent Claim 51 words
An electrical appliance in accordance with claim 1, wherein the free end of the electrically insulated body of the plug member is of reduced diameter, and the second recited contact is in the form of a metal ring extending about said reduced diameter portion of the body of the plug member.

References Cited (Backward Citations)

US2299148A Cited
CH353452A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-09-09 1978-03-11 1978-09-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-09-09 1982-03-11 1982-09-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-09-09 1986-03-11 1986-09-10 $7700.00 Window Closed / Lapsed

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