US3884719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery
Assignee: Olin Corp
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Filing: 1955-06-29
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Granted: 1975-05-20
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Expires: 1975-06-29
Abstract
Abstract 1. An electrode for a heat activated cell of the stacked disc type comprising a nickel metallic folder of circular planar section having a narrow joining fold portion between its leaves which enclose a layer of electrolyte fusible heat producing composition, the outer face of one of said leaves being coated with calcium.
Inventors
- 👤 Richard C Evans
- 👤 Murray A Heine
- 👤 Stanley J Ciosek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:12
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/30; H01M6/36
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
52 words
AN ELECTRODE FOR A HEAT ACTIVATED CELL OF THE STACKED DISC TYPE COMPRISING A NICKEL METALLIC FOLDER OF CIRCULAR PLANAR SECTION HAVING A NARROW JOINING FOLD PORTON BETWEEN ITS LEAVES WHICH ENCLOSE A LAYER OF ELECTROLYTE FUSIBLE HEAT PRODUCING COMPOSITION, THE OUTER FACE OF ONE OF SAID LEAVES BEING COATED WITH CALCIUM.
Claim 2
Dependent Claim
52 words
AN ELECTRODE FOR A HEAT ACTIVATED CELL OF THE STACKED DISC TYPE COMPRISING A NICKEL METALLIC FOLDER OF CIRCULAR PLANAR SECTION HAVING A NARROW JOINING FOLD PORTON BETWEEN ITS LEAVES WHICH ENCLOSE A LAYER OF ELECTROLYTE FUSIBLE HEAT PRODUCING COMPOSITION, THE OUTER FACE OF ONE OF SAID LEAVES BEING COATED WITH CALCIUM.
Claim 3
Independent Claim
68 words
A method for producing a heat activated cell anode comprising helically winding in overlapping fashion a metallic strip around a tapered drum, coating the external surfaces of the winding on said drum with a dissimilar metal of different electrode potential, unwinding said strip, transversely subdividing said strip, and folding said transverse subdivisions along the boundary line between the coated and the uncoated areas, with the coated area out.
Claim 4
Independent Claim
68 words
A method for producing a heat activated cell anode comprising helically winding in overlapping fashion a metallic strip around a tapered drum, coating the external surfaces of the winding on said drum with a dissimilar metal of different electrode potential, unwinding said strip, transversely subdividing said strip, and folding said transverse subdivisions along the boundary line between the coated and the uncoated areas, with the coated area out.
Claim 5
Independent Claim
76 words
A method for producing an electrode for a heat activated cell of the stacked disc type comprising helically winding in overlapping fashion, a cathode acting metallic strip around a tapered drum, coating the external surfaces of the winding on said drum with an anode acting metal unwinding said strip, stamping transverse portions from said strip and folding said transverse portion along the boundary line between the coated and the uncoated areas, with the coated side out.
Claim 6
Independent Claim
76 words
A method for producing an electrode for a heat activated cell of the stacked disc type comprising helically winding in overlapping fashion, a cathode acting metallic strip around a tapered drum, coating the external surfaces of the winding on said drum with an anode acting metal unwinding said strip, stamping transverse portions from said strip and folding said transverse portion along the boundary line between the coated and the uncoated areas, with the coated side out.
Claim 7
Dependent Claim
54 words
A unit heat activated ceLl comprising two nickel metal folders of circular planar section, each having a narrow joining fold portion between its leaves which enclose a heat paper disc, said folders separated from each other by layers of fusible electrolyte, one of said folders being coated on its electrolyte engaging face with calcium.
Claim 8
Dependent Claim
54 words
A unit heat activated ceLl comprising two nickel metal folders of circular planar section, each having a narrow joining fold portion between its leaves which enclose a heat paper disc, said folders separated from each other by layers of fusible electrolyte, one of said folders being coated on its electrolyte engaging face with calcium.
Claim 9
Dependent Claim
32 words
The unit cell of claim 4 wherein the fusible electrolyte layer comprises two disc shaped pads of fiberglass tape impregnated with a solid mixture of lithium chloride, potassium chloride and potassium dichromate.
Claim 10
Dependent Claim
57 words
A heat activated battery comprising stacked cathode acting metal folders separated by layers of fusible electrolyte, each folder enclosing a layer of heat producing composition, an anode acting metallic coating on one electrolyte engaging face of each folder, the coated faces of each folder facing in the same direction, said stack being located between two external terminals.
Claim 11
Dependent Claim
57 words
A heat activated battery comprising stacked cathode acting metal folders separated by layers of fusible electrolyte, each folder enclosing a layer of heat producing composition, an anode acting metallic coating on one electrolyte engaging face of each folder, the coated faces of each folder facing in the same direction, said stack being located between two external terminals.
Claim 12
Dependent Claim
100 words
A heat activated battery comprising stacked cathode acting metal folders of circular planar section, each said folder having a narrow joining fold portion between its leaves which enclose an electrolyte fusible, heat producing composition pad, said folders separated by layers of fusible electrolyte, an anode acting metallic coating on one electrolyte engaging face of each folder, the coated facings of each folder facing in the same direction, said stack being located between two external terminals within a container, one of said terminals closing off one end of the container and containing an igniter for ignition of said heat producing pads.
Claim 13
Dependent Claim
100 words
A heat activated battery comprising stacked cathode acting metal folders of circular planar section, each said folder having a narrow joining fold portion between its leaves which enclose an electrolyte fusible, heat producing composition pad, said folders separated by layers of fusible electrolyte, an anode acting metallic coating on one electrolyte engaging face of each folder, the coated facings of each folder facing in the same direction, said stack being located between two external terminals within a container, one of said terminals closing off one end of the container and containing an igniter for ignition of said heat producing pads.
Claim 14
Dependent Claim
121 words
A heat activated battery comprising stacked cathode acting metal folders of circular planar section, each said folder having a narrow joining fold portion between its leaves which enclose an electrolyte fusible, heat producing composition pad, said folders separated by layers of fusible electroylte, an anode acting metallic coating one one electrolyte engaging face of each folder, the coated facings of each folder facing in the same direction, said stack being axially perforated and being located between two external terminals within a container, one of said terminals closing off one end of the container and containing an igniter in an axial cavity therein for ignition of said heat producing pads, and the other terminal being insulated from and extending beyond said container.
Claim 15
Dependent Claim
121 words
A heat activated battery comprising stacked cathode acting metal folders of circular planar section, each said folder having a narrow joining fold portion between its leaves which enclose an electrolyte fusible, heat producing composition pad, said folders separated by layers of fusible electroylte, an anode acting metallic coating one one electrolyte engaging face of each folder, the coated facings of each folder facing in the same direction, said stack being axially perforated and being located between two external terminals within a container, one of said terminals closing off one end of the container and containing an igniter in an axial cavity therein for ignition of said heat producing pads, and the other terminal being insulated from and extending beyond said container.
Claim 16
Dependent Claim
136 words
A heat activated battery comprising stacked nickel metal folders of circular planar section, each said folder having a narrow joining fold portion between its leaves which enclose a heat paper disc, said folders separated by layers of fusible electrolyte, a calcium coating on one electrolyte engaging face of each folder, the calcium coated faces of each folder facing in the same direction, said stack being axial perforated and being located between two external metallic electrodes within a metallic cup-shaped container, having an inner insulation lining disposed around said stack, one of said electrodes closing off one end of the container and containing an igniter in an axial cavity therein for flash ignition of said heat paper discs through their axial perforation, and the other electrode being insulated from and extending through the base of said container.
Claim 17
Dependent Claim
136 words
A heat activated battery comprising stacked nickel metal folders of circular planar section, each said folder having a narrow joining fold portion between its leaves which enclose a heat paper disc, said folders separated by layers of fusible electrolyte, a calcium coating on one electrolyte engaging face of each folder, the calcium coated faces of each folder facing in the same direction, said stack being axial perforated and being located between two external metallic electrodes within a metallic cup-shaped container, having an inner insulation lining disposed around said stack, one of said electrodes closing off one end of the container and containing an igniter in an axial cavity therein for flash ignition of said heat paper discs through their axial perforation, and the other electrode being insulated from and extending through the base of said container.
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) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |