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
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)
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 |