US4126584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating silver oxide
Assignee: Duracell Inc USA
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Filing: 1977-04-01
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Granted: 1978-11-21
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Expires: 1997-04-01
Abstract
Abstract A process for treating monovalent silver oxide (Ag 2 O) alone or in combination with other materials to increase its compressibility, increase its ability to absorb electrolyte, and decrease its carbon dioxide absorption rate by the step of heating the silver oxide or silver oxide mixture to temperatures of from about 150° C to about 300° C for a period of time from about 1 hour to about 5 hours.
Inventors
- 👤 Alexander S. Borbely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:09
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/48; H01M4/54; C; C01; C01G; C01G5/00; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
48 words
A process for treating monovalent silver oxide which comprises the step of heating the monovalent silver oxide to a temperature in the range of about 150° C. to about 300° C. for a period of time from about 1 hour in an air atmosphere to about 5 hours.
Claim 2
Dependent Claim
48 words
A process for treating monovalent silver oxide which comprises the step of heating the monovalent silver oxide to a temperature in the range of about 150° C. to about 300° C. for a period of time from about 1 hour in an air atmosphere to about 5 hours.
Claim 3
Dependent Claim
28 words
The process of claim 1, wherein said temperature is about 175° C. to about 225° C. and said time is from about 1 hour to about 3 hours.
Claim 4
Dependent Claim
18 words
The process of claim 1, wherein the treated monovalent silver oxide is permitted to cool to room temperature.
Claim 5
Dependent Claim
73 words
A process for compressing monovalent silver oxide into pellets which comprise the steps of heating the monovalent silver oxide to a temperature in the range of about 150° C. to about 300° C. for a period of time from about 1 hour to about 5 hours in an air atmosphere, and thereafter pressing the resulting silver oxide into pellets with a compressive force of between about 5 and 40 tons per square inch.
Claim 6
Dependent Claim
73 words
A process for compressing monovalent silver oxide into pellets which comprise the steps of heating the monovalent silver oxide to a temperature in the range of about 150° C. to about 300° C. for a period of time from about 1 hour to about 5 hours in an air atmosphere, and thereafter pressing the resulting silver oxide into pellets with a compressive force of between about 5 and 40 tons per square inch.
Claim 7
Dependent Claim
32 words
The process of claim 4, wherein said temperature is in the range of about 150° C. to about 250° C. and said time is from about 1 hour to about 3 hours.
Claim 8
Dependent Claim
30 words
The process of claim 4, wherein said monovalent silver oxide when treated is in admixture with about 3% to 15% manganese dioxide and up to about 1% of a lubricant.
Claim 9
Dependent Claim
17 words
The process of claim 6 wherein said mixture has been pressed and granulated prior to said treatment.
Claim 10
Dependent Claim
21 words
The process of claim 7, wherein said temperature is about 200° C and said period of heating is about 2 hours.
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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) | 1981-11-20 | 1982-05-22 | 1982-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-20 | 1986-05-22 | 1986-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-20 | 1990-05-22 | 1990-11-21 | $7700.00 | Window Closed / Lapsed |