Patent US4039905A successfully refreshed from Google Patents.
US4039905A
Expired / Lapsed
US
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Electrical device of the electrolytic type having means for confining mobile electrolyte and method of making same
Assignee: Duracell Inc USA
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Filing: 1974-07-01
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Granted: 1977-08-02
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Expires: 1994-07-01
Abstract
Abstract An electrical device of the electrolytic type comprising an electrically insulating radiation semi-cured or cured polymer containing material over an electrical body to confine mobile electrolyte contiguous to the body. Preferably, the electrical body includes electrode means selected from the group consisting of stacked anode and cathode electrodes, or convolutely wound anode and cathode electrodes. Adjacent anode and cathode electrodes are separated by a suitable spacer, preferably paper and the like. The mobile electrolyte includes liquid and semi-liquid electrolytes. The method of making the electrical device includes the steps of applying radiation curable polymer containing material to the electrical body containing the mobile electrolyte, and irradiating the applied polymer containing material to cure or semi-cure the material to confine mobile electrolyte contiguous to the body.
Inventors
- 👤 Godfrey R. Pearce
- 👤 William J. Breeden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:12
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/08; H01G9/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
43 words
An electrical device of the electrolytic type comprising an electrical body, mobile electrolyte contacting the electrical body, and a continuous coating of electrical insulating polymer containing material at least radiation semi-cured over the electrical body to confine mobile electrolyte contiguous to the body.
Claim 2
Dependent Claim
43 words
An electrical device of the electrolytic type comprising an electrical body, mobile electrolyte contacting the electrical body, and a continuous coating of electrical insulating polymer containing material at least radiation semi-cured over the electrical body to confine mobile electrolyte contiguous to the body.
Claim 3
Dependent Claim
15 words
The electrical device of claim 1, wherein the mobile electrolyte is at least semi-liquid electrolyte.
Claim 4
Dependent Claim
50 words
A method making the electrical device of claim 1, including the steps of applying radiation curable polymer containing material to an electrical body contacted by mobile electrolyte, and irradiating the applied polymer containing material to at least semi-cure the material to confine the mobile electrolyte contiguous to the electrical body.
Claim 5
Dependent Claim
20 words
The method of claim 3, the further steps of placing a housing around the body and the polymer containing material.
Claim 6
Dependent Claim
34 words
The method of claim 3, wherein the step of applying radiation curable polymer containing material is selected from spraying, brushing and rolling material over the body, and dipping and immersing the body in material.
Claim 7
Dependent Claim
60 words
An electrical device of the electrolytic type comprising a housing, an electrical body in the housing, mobile electrolyte contacting the electrical body, a continuous coating of electrically insulating at least radiation semi-cured polymer containing material over the electrical body to confine mobile electrolyte contiguous to the body, and terminal means connected to the electrical body and projecting thru the housing.
Claim 8
Dependent Claim
60 words
An electrical device of the electrolytic type comprising a housing, an electrical body in the housing, mobile electrolyte contacting the electrical body, a continuous coating of electrically insulating at least radiation semi-cured polymer containing material over the electrical body to confine mobile electrolyte contiguous to the body, and terminal means connected to the electrical body and projecting thru the housing.
Claim 9
Dependent Claim
31 words
The electrical device of claim 6, wherein the electrical body includes electrode means selected from the group consisting of stacked anode and cathode electrodes, and convolutely wound anode and cathode electrodes.
Claim 10
Dependent Claim
17 words
The electrical device of claim 7, wherein adjacent anode and cathode electrodes are separated by a dielectric.
Claim 11
Dependent Claim
15 words
The electrical device of claim 6, wherein the mobile electrolyte is at least semi-liquid electrolyte.
Claim 12
Dependent Claim
41 words
The electrical device of claim 6, wherein the housing includes an electrically conducting container with an open end and an electrically insulating means closing the open end of the container, the terminal means projecting thru the insulating means of the housing.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-01 | 1981-01-31 | 1981-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-01 | 1985-01-31 | 1985-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-01 | 1989-01-31 | 1989-08-02 | $7700.00 | Window Closed / Lapsed |