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US3716708A Expired / Lapsed US ⏱️ 0.0 years remaining

Flashlight with reserve cell

Assignee: Duracell Inc USA
•
Filing: 1970-08-17
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Granted: 1973-02-13
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Expires: 1990-08-17
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Abstract

Abstract A reserve cell battery serves as a handle for a flashlight, made to be an economical throw-away unit to be discarded after the cell is used up.

Inventors

  • 👤 G Kaye

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 00:18
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/30; H01M6/36; H01M6/38; F; F21; F21L; F21L2/00; H01M50/00; H01M50/20; H01M50/204; H01M50/207; H01M50/209

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 286 words
A portable reserve electric battery cell flashlight device comprising: a. an elongated housing having an operating cell compartment, said housing to serve as a handle for said flashlight and of appropriate size and shape to be held in the human hand; b. a cathode-anode electrode and separator assembly in said compartment; c. a separate container as a reservoir for the electrolyte for said cell wherein said separate container for said electrolyte is shaped as a compressible bellows and is initially filled with a quantity of electrolyte to activate the related cell; d. a communicating conduit between said electrolyte container and said cell, said conduit being normally closed to confine the electrolyte to its container; e. means for opening said conduit for passage of the electrolyte into said compartment and means for then forcing the electrolyte into the operating region of the associated cell compartment, wherein said means for opening said conduit to said cell consists of a plunger rod operable by said bellows when compressed and said plunger rod embodies a closure element to cork and close said conduit when said bellows is completely compressed, whereby said electrolyte Is locked into said cell assembly; f. an elongated actuator externally fitting lengthwise of said housing and manually operable lengthwise along said housing to actuate said conduit-opening means; g. a tear strip mounted on said housing to prevent undesired movement of said external actuator to compress said bellows until said tear strip is intentionally removed to permit said cell to be activated; h. and an electric light bulb mounted on said handle and electrically connected to the cathode and anode assembly to be energized therefrom when the electrolyte is introduced into said operating compartment to complete the cell.
Claim 2
Dependent Claim 286 words
A portable reserve electric battery cell flashlight device comprising: a. an elongated housing having an operating cell compartment, said housing to serve as a handle for said flashlight and of appropriate size and shape to be held in the human hand; b. a cathode-anode electrode and separator assembly in said compartment; c. a separate container as a reservoir for the electrolyte for said cell wherein said separate container for said electrolyte is shaped as a compressible bellows and is initially filled with a quantity of electrolyte to activate the related cell; d. a communicating conduit between said electrolyte container and said cell, said conduit being normally closed to confine the electrolyte to its container; e. means for opening said conduit for passage of the electrolyte into said compartment and means for then forcing the electrolyte into the operating region of the associated cell compartment, wherein said means for opening said conduit to said cell consists of a plunger rod operable by said bellows when compressed and said plunger rod embodies a closure element to cork and close said conduit when said bellows is completely compressed, whereby said electrolyte Is locked into said cell assembly; f. an elongated actuator externally fitting lengthwise of said housing and manually operable lengthwise along said housing to actuate said conduit-opening means; g. a tear strip mounted on said housing to prevent undesired movement of said external actuator to compress said bellows until said tear strip is intentionally removed to permit said cell to be activated; h. and an electric light bulb mounted on said handle and electrically connected to the cathode and anode assembly to be energized therefrom when the electrolyte is introduced into said operating compartment to complete the cell.
Claim 3
Dependent Claim 286 words
A portable reserve electric battery cell flashlight device comprising: a. an elongated housing having an operating cell compartment, said housing to serve as a handle for said flashlight and of appropriate size and shape to be held in the human hand; b. a cathode-anode electrode and separator assembly in said compartment; c. a separate container as a reservoir for the electrolyte for said cell wherein said separate container for said electrolyte is shaped as a compressible bellows and is initially filled with a quantity of electrolyte to activate the related cell; d. a communicating conduit between said electrolyte container and said cell, said conduit being normally closed to confine the electrolyte to its container; e. means for opening said conduit for passage of the electrolyte into said compartment and means for then forcing the electrolyte into the operating region of the associated cell compartment, wherein said means for opening said conduit to said cell consists of a plunger rod operable by said bellows when compressed and said plunger rod embodies a closure element to cork and close said conduit when said bellows is completely compressed, whereby said electrolyte Is locked into said cell assembly; f. an elongated actuator externally fitting lengthwise of said housing and manually operable lengthwise along said housing to actuate said conduit-opening means; g. a tear strip mounted on said housing to prevent undesired movement of said external actuator to compress said bellows until said tear strip is intentionally removed to permit said cell to be activated; h. and an electric light bulb mounted on said handle and electrically connected to the cathode and anode assembly to be energized therefrom when the electrolyte is introduced into said operating compartment to complete the cell.
Claim 4
Dependent Claim 286 words
A portable reserve electric battery cell flashlight device comprising: a. an elongated housing having an operating cell compartment, said housing to serve as a handle for said flashlight and of appropriate size and shape to be held in the human hand; b. a cathode-anode electrode and separator assembly in said compartment; c. a separate container as a reservoir for the electrolyte for said cell wherein said separate container for said electrolyte is shaped as a compressible bellows and is initially filled with a quantity of electrolyte to activate the related cell; d. a communicating conduit between said electrolyte container and said cell, said conduit being normally closed to confine the electrolyte to its container; e. means for opening said conduit for passage of the electrolyte into said compartment and means for then forcing the electrolyte into the operating region of the associated cell compartment, wherein said means for opening said conduit to said cell consists of a plunger rod operable by said bellows when compressed and said plunger rod embodies a closure element to cork and close said conduit when said bellows is completely compressed, whereby said electrolyte Is locked into said cell assembly; f. an elongated actuator externally fitting lengthwise of said housing and manually operable lengthwise along said housing to actuate said conduit-opening means; g. a tear strip mounted on said housing to prevent undesired movement of said external actuator to compress said bellows until said tear strip is intentionally removed to permit said cell to be activated; h. and an electric light bulb mounted on said handle and electrically connected to the cathode and anode assembly to be energized therefrom when the electrolyte is introduced into said operating compartment to complete the cell.
Claim 5
Dependent Claim 22 words
A reserve electric cell device, as in claim 1, including means for holding said external manual actuator retained in fully operated position.
Claim 6
Dependent Claim 45 words
A reserve cell, as in claim 1, in which electrical conductors extend from the cathode and anode elements of the assembly to the terminals of said light bulb; and said housing embodies means for insulating said electrical conductors to prevent short-circuiting action between said conductors.
Claim 7
Dependent Claim 78 words
A reserve electric cell, as in claim 1, in which said housing embodies, on a front portion thereof, a supporting element for said light bulb to enable said light bulb to be inserted therein from in front of said cell; and a front cover fits over the front end of the housing to surround the light bulb; and said front cover supports a transparent lens shaped element co-axially in front of said portion for supporting said light bulb.
Claim 8
Dependent Claim 45 words
A reserve electric cell, as in claim 1, in which means associated with said communicating conduit between the electrolyte container and said cell, are of such size and shape to assure fast flow of said electrolyte from said electrolyte container into the operating cell compartment.
Claim 9
Dependent Claim 306 words
A portable reserve electric battery cell flashlight device comprising; a. an elongated housing having an operating cell compartment, said housing to serve as a handle for said flashlight and of appropriate size and shape to be held in the human hand; b. a cathode-anode electrode and separator assembly in said compartment; c. a separate container as a reservoir for the electrolyte for said cell wherein said separate container for said electrolyte is shaped as a compressible bellows and is initially filled with a quantity of electrolyte to activate the related cell; d. a communicating conduit between said electrolyte container and said cell, said conduit being normally closed to confine the electrolyte to its container; e. means for opening said conduit for passage of the electrolyte into said compartment and means for then forcing the electrolyte into the operating region of the associated cell compartment, wherein said means for opening said conduit to said cell consists of a plunger rod operable by said bellows when compressed and said plunger rod embodies a closure element to cork and close said conduit when said bellows is completely compressed, whereby said electrolyte is locked into said cell assembly; f. an elongated actuator externally fitting lengthwise of said housing and manually operable lengthwise along said housing to actuate said conduit-opening means, wherein said actuator includes means for holding said actuator locked in actuated position to hold said bellows in compressed condition; g. a tear strip mounted on said housing to prevent undesired movement of said external actuator to compress said bellows until said tear strip is intentionally removed to permit said cell to be activated; h. and an electric light bulb mounted on said handle and electrically connected to the cathode and anode assembly to be energized therefrom when the electrolyte is introduced into said operating compartment to complete the cell.
Claim 10
Dependent Claim 306 words
A portable reserve electric battery cell flashlight device comprising; a. an elongated housing having an operating cell compartment, said housing to serve as a handle for said flashlight and of appropriate size and shape to be held in the human hand; b. a cathode-anode electrode and separator assembly in said compartment; c. a separate container as a reservoir for the electrolyte for said cell wherein said separate container for said electrolyte is shaped as a compressible bellows and is initially filled with a quantity of electrolyte to activate the related cell; d. a communicating conduit between said electrolyte container and said cell, said conduit being normally closed to confine the electrolyte to its container; e. means for opening said conduit for passage of the electrolyte into said compartment and means for then forcing the electrolyte into the operating region of the associated cell compartment, wherein said means for opening said conduit to said cell consists of a plunger rod operable by said bellows when compressed and said plunger rod embodies a closure element to cork and close said conduit when said bellows is completely compressed, whereby said electrolyte is locked into said cell assembly; f. an elongated actuator externally fitting lengthwise of said housing and manually operable lengthwise along said housing to actuate said conduit-opening means, wherein said actuator includes means for holding said actuator locked in actuated position to hold said bellows in compressed condition; g. a tear strip mounted on said housing to prevent undesired movement of said external actuator to compress said bellows until said tear strip is intentionally removed to permit said cell to be activated; h. and an electric light bulb mounted on said handle and electrically connected to the cathode and anode assembly to be energized therefrom when the electrolyte is introduced into said operating compartment to complete the cell.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-02-13 1976-08-14 1977-02-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-02-13 1980-08-14 1981-02-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-02-13 1984-08-14 1985-02-13 $7700.00 Window Closed / Lapsed

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