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US5111127A Expired / Lapsed US ⏱️ 0.0 years remaining

Portable power supply

Assignee: Individual
•
Filing: 1990-06-25
•
Granted: 1992-05-05
•
Expires: 2010-06-25
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Abstract

Abstract A portable power supply having a rechargeable battery in a housing mounted on a portable frame. An inverter/converter unit, attached to the frame, is hardwired to the battery for conversion of DC power to AC power and for recharging the battery from an external AC source. Power distribution means are provided for distributing DC and AC Power. Photovoltaic panels are mounted to the frame for recharging the battery.

Inventors

  • 👤 Woodward Johnson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 14:18
CPC Classifications
F; F02; F02B; F02B63/00; F02B63/04; H; H01; H01M; H01M10/00; H01M10/42; H01M10/46; H01M10/465; H01M50/00; H01M50/20; H01M50/202; H01M50/247; H01M50/296; F02B63/044; F02B2063/045; F02B63/047; Y; Y02; Y02E; Y02E60/00; Y02E60/10

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 202 words
A portable, rechargeable power supply, comprising: a frame member; a plurality of ground engaging wheels attached to said frame member for transporting said frame member over the ground; a housing attached to said frame; a rechargeable DC battery located within said housing and having a positive and a negative output terminal; a voltage inverter, attached to said frame member and electrically hardwired to said battery output terminals, for converting DC output from said battery to an AC output and for converting AC power from an external source to a DC output for charging the DC battery; an AC power block mounted on said frame and electrically connected to said inverter and having a plurality of AC input/output sockets; a DC input/output female-type socket mounted on said housing and switchably connected electrically to said battery; a plurality of photovoltaic panels attached to said frame for generating DC electrical output from solar energy; and switching means mounted on said housing including a first switch for enabling the panels' DC output to be switched either to the battery for recharging or to a second switch, said second switch enabling the DC input/output socket to be electrically connected to either the battery or to said panels.
Claim 2
Dependent Claim 202 words
A portable, rechargeable power supply, comprising: a frame member; a plurality of ground engaging wheels attached to said frame member for transporting said frame member over the ground; a housing attached to said frame; a rechargeable DC battery located within said housing and having a positive and a negative output terminal; a voltage inverter, attached to said frame member and electrically hardwired to said battery output terminals, for converting DC output from said battery to an AC output and for converting AC power from an external source to a DC output for charging the DC battery; an AC power block mounted on said frame and electrically connected to said inverter and having a plurality of AC input/output sockets; a DC input/output female-type socket mounted on said housing and switchably connected electrically to said battery; a plurality of photovoltaic panels attached to said frame for generating DC electrical output from solar energy; and switching means mounted on said housing including a first switch for enabling the panels' DC output to be switched either to the battery for recharging or to a second switch, said second switch enabling the DC input/output socket to be electrically connected to either the battery or to said panels.
Claim 3
Dependent Claim 22 words
The portable, rechargeable power supply of claim 1 further comprising: a spotlight mounted to said frame and electrically connected to said battery.
Claim 4
Dependent Claim 43 words
The portable, rechargeable power supply of claim 2 further comprising: a DC male plug for insertion into said DC input/output female-type socket; and a small photovoltaic panel mounted on said housing and having an output cable wired directly to said DC male plug.
Claim 5
Dependent Claim 31 words
The portable, rechargeable power supply of claim 3 wherein: said power block has a lighted on-off switch and a circuit breaker in the electrical connection between the block and said inverter.
Claim 6
Dependent Claim 25 words
The portable, rechargeable power supply of claim 4 wherein: said frame member has an upright, dolly-shape, and a top, bottom, two sides, front and back.
Claim 7
Dependent Claim 29 words
The portable, rechargeable power supply of claim 5 wherein: said frame member has a shelf attached to its front near to its bottom upon which said battery housing rests.
Claim 8
Dependent Claim 35 words
The portable, rechargeable power supply of claim 6 wherein: said spotlight has an on-off switch mounted on its rear side and said spot light is attached to said frame member front near to its top.
Claim 9
Dependent Claim 54 words
The portable, rechargeable power supply of claim 7 wherein: two of said plurality of photovoltaic panels are attached one each to a frame member side by means of a pivot joint whereby each of said panels are folded out from the frame sides and are positioned to face rearward or forward of the frame.
Claim 10
Dependent Claim 32 words
The portable, rechargeable power supply of claim 8 wherein: said pivot joints permit said side connected panels to be pivoted between vertical and horizontal positions and set at any angle in between.

References Cited (Backward Citations)

US360934A Cited
US2230458A Cited
US2978596A Cited
US3510745A Cited
US3963972A Cited
US4009051A Cited
US4300087A Cited
US4392661A Cited
US4376250A Cited
US4315163A Cited
US4481562A Cited
US4786851A Cited
US4942723A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1995-05-05 1995-11-04 1996-05-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-05-05 1999-11-04 2000-05-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-05-05 2003-11-04 2004-05-05 $7700.00 Window Closed / Lapsed

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