← Back to Patent Explorer
US3445289A Expired / Lapsed US ⏱️ 0.0 years remaining

Battery

Assignee: United States Department of the Army
•
Filing: 1956-06-27
•
Granted: 1969-05-20
•
Expires: 1976-06-27
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Henry Norman Nerwin Jr
  • 👤 Willard S Leadbeter
  • 👤 John S Hilten

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 20:15
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/30; H01M6/36

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 281 words
A THERMAL BATTERY COMPRISING IN COMBINATION: A FIRST PLURALITY OF BIMETAL SEMI-WASHERS COMPOSED OF A FIRST METAL AND HAVING A QUADRANT SURFACE COVERED WITH A SECOND METAL OF DIFFERENT ELECTROTHERMAL CHARACTERISTICS, EACH OF SAID FIRST SEMI-WASHERS BEING OFFSET IN THE CENTER: A SECOND PLURALITY OF BIMETALLIC SEMI-WASHERS HAVING THE SAME CONSTRUCTION AS SAID FIRST SEMI-WASHERS EXCEPT THAT SAID SECOND SEMI-WASHERS ARE LEFT-HANDED WITH RESPECT TO SAID FIRST SEMI-WASHERS; A PLURALITY OF SEMI-WASHER HEAT PADS MADE UP OF A MIXTURE OF ASBESTOS AND A COMBUSTIBLE MATERIAL; A PLURALITY A QUADRANT ELECTROLYTE ELEMENTS; SAID FIRST AND SECOND SEMI-WASHERS BEING STACKED WITH SAID ELECTROLYTE ELEMENTS AND SAID SEMI-WASHER HEAT PADS SO AS TO FORM A CYLINDER HAVING TWO HALVES, A FIRST HALF OF THE CYLINDER CONTAINING FIRST AND SECOND QUADRANTS AND FORMING A FIRST SERIES OF CELL WHICH ALTERNATE BETWEEN SAID FIRST AND SECOND QUADRANTS, AND A SECOND HALF OF THE CYLINDER CONTAINING THIRD AND FOURTH QUADRANTS AND FORMING A SECOND SERIES OF CELLS WHICH ALTERNATE BETWEEN SAID THIRD AND FOURTH QUADRANTS, EACH CELL BEING MADE UP OF A QUADRANT ELECTROLYTE ELEMENT PLACED BETWEEN A QUADRANT OF FIRST METAL AND A QUADRANT OF SECOND METAL, SAID SEMIWASHER HEAT PADS BEING PLACED BETWEEN OPPOSITE FIRST METAL SURFACES OF SAID SEMI-WASHERS SO AS TO BE ALTERNATELY STACKED WITH SAID CELLS; MEANS FOR CONNECTING SAID FIRST AND SECOND SERIES OF CELLS IN SERIES; PRIMER MEANS PLACED WITHIN THE CYLINDRICAL TUBE FORMED IN THE CENTER OF SAID CYLINDER BY SAID SEMI-WASHERS, SAID PRIMER IGNITING SAID HEAT PADS WHEN SAID PRIMER IS FIRED; MEANS FOR FIRING SAID PRIMER: AND SILICON RUBBER MEANS COATING SAID CYLINDER TO HOLD SAID CYLINDER TOGETHER, INSULATE SAID CELLS, AND PREVENT SAID ELECTROLYTE FROM LEAKING.
Claim 2
Dependent Claim 281 words
A THERMAL BATTERY COMPRISING IN COMBINATION: A FIRST PLURALITY OF BIMETAL SEMI-WASHERS COMPOSED OF A FIRST METAL AND HAVING A QUADRANT SURFACE COVERED WITH A SECOND METAL OF DIFFERENT ELECTROTHERMAL CHARACTERISTICS, EACH OF SAID FIRST SEMI-WASHERS BEING OFFSET IN THE CENTER: A SECOND PLURALITY OF BIMETALLIC SEMI-WASHERS HAVING THE SAME CONSTRUCTION AS SAID FIRST SEMI-WASHERS EXCEPT THAT SAID SECOND SEMI-WASHERS ARE LEFT-HANDED WITH RESPECT TO SAID FIRST SEMI-WASHERS; A PLURALITY OF SEMI-WASHER HEAT PADS MADE UP OF A MIXTURE OF ASBESTOS AND A COMBUSTIBLE MATERIAL; A PLURALITY A QUADRANT ELECTROLYTE ELEMENTS; SAID FIRST AND SECOND SEMI-WASHERS BEING STACKED WITH SAID ELECTROLYTE ELEMENTS AND SAID SEMI-WASHER HEAT PADS SO AS TO FORM A CYLINDER HAVING TWO HALVES, A FIRST HALF OF THE CYLINDER CONTAINING FIRST AND SECOND QUADRANTS AND FORMING A FIRST SERIES OF CELL WHICH ALTERNATE BETWEEN SAID FIRST AND SECOND QUADRANTS, AND A SECOND HALF OF THE CYLINDER CONTAINING THIRD AND FOURTH QUADRANTS AND FORMING A SECOND SERIES OF CELLS WHICH ALTERNATE BETWEEN SAID THIRD AND FOURTH QUADRANTS, EACH CELL BEING MADE UP OF A QUADRANT ELECTROLYTE ELEMENT PLACED BETWEEN A QUADRANT OF FIRST METAL AND A QUADRANT OF SECOND METAL, SAID SEMIWASHER HEAT PADS BEING PLACED BETWEEN OPPOSITE FIRST METAL SURFACES OF SAID SEMI-WASHERS SO AS TO BE ALTERNATELY STACKED WITH SAID CELLS; MEANS FOR CONNECTING SAID FIRST AND SECOND SERIES OF CELLS IN SERIES; PRIMER MEANS PLACED WITHIN THE CYLINDRICAL TUBE FORMED IN THE CENTER OF SAID CYLINDER BY SAID SEMI-WASHERS, SAID PRIMER IGNITING SAID HEAT PADS WHEN SAID PRIMER IS FIRED; MEANS FOR FIRING SAID PRIMER: AND SILICON RUBBER MEANS COATING SAID CYLINDER TO HOLD SAID CYLINDER TOGETHER, INSULATE SAID CELLS, AND PREVENT SAID ELECTROLYTE FROM LEAKING.

References Cited (Backward Citations)

US2631180A Cited
US2707199A Cited
US2762858A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1972-05-19 1972-11-18 1973-05-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1976-05-19 1976-11-18 1977-05-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1980-05-19 1980-11-18 1981-05-20 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag