Patent US5721064A successfully refreshed from Google Patents.
US5721064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air manager system for reducing gas concentrations in a metal-air battery
Assignee: Gillette Co LLC
•
Filing: 1996-05-21
•
Granted: 1998-02-24
•
Expires: 2016-05-21
Abstract
Abstract A rechargeable metal-air battery having a housing, an air flow path, and at least one metal-air cell positioned within the housing. An air movement device communicates with the housing. The metal-air cell generates oxygen and hydrogen during cell charging. The air movement device creates a pulsating air flow within the air flow path for directing a flow of the generated gases.
Inventors
- 👤 Christopher S. Pedicini
- 👤 Lawrence A. Tinker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:30
CPC Classifications
H; H01; H01M; H01M12/00; H01M12/08; H01M10/00; H01M10/42; H01M12/04; H01M12/06; H01M8/00; H01M8/04; H01M8/04082; H01M8/04089; H01M8/04097; H01M10/60; H01M10/61; H01M10/613; H01M10/65; H01M10/655; H01M10/6556; H01M10/6557; H01M10/656; H01M10/6561; H01M10/6563; H01M10/6565; H01M10/6566; H01M50/00; H01M50/30; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
55 words
A rechargeable metal-air battery comprising: a housing; at least one metal-air cell within said housing, said metal-air cell generating oxygen and hydrogen during cell charging; an air flow path within said housing; and an air movement device communicating with said housing; said air movement device creating a pulsating air flow within said air flow path.
Claim 2
Dependent Claim
55 words
A rechargeable metal-air battery comprising: a housing; at least one metal-air cell within said housing, said metal-air cell generating oxygen and hydrogen during cell charging; an air flow path within said housing; and an air movement device communicating with said housing; said air movement device creating a pulsating air flow within said air flow path.
Claim 3
Dependent Claim
15 words
The rechargeable metal-air battery of claim 1, wherein said air movement device comprises a fan.
Claim 4
Dependent Claim
16 words
The rechargeable metal-air battery of claim 1, wherein said air movement device pulsates during cell charging.
Claim 5
Dependent Claim
29 words
The rechargeable metal-air battery of claim 1, wherein said air movement device pulsates on for a predetermined length of time and then off for the same length of time.
Claim 6
Dependent Claim
31 words
The rechargeable metal-air battery of claim 4, wherein said predetermined length of time said air movement device pulsates on and off is from about 10 seconds to about 2 minutes each.
Claim 7
Dependent Claim
19 words
The rechargeable metal-air battery of claim 1, wherein said air movement device pulsates immediately after cell charging is complete.
Claim 8
Dependent Claim
31 words
The rechargeable metal-air battery of claim 6, wherein said air movement device has at least one pulse of about 30 seconds to about 2 minutes after said cell charging is complete.
Claim 9
Dependent Claim
19 words
The rechargeable metal-air battery of claim 1, wherein said air movement device pulsates periodically after cell charging is complete.
Claim 10
Dependent Claim
21 words
The rechargeable metal-air battery of claim 1, wherein said air movement device has at least one pulse at a predetermined interval.
Claim 11
Dependent Claim
21 words
The rechargeable metal-air battery of claim 9, wherein said predetermined interval is from about every 10 minutes to about every hour.
Claim 12
Dependent Claim
32 words
The rechargeable metal-air battery of claim 1, wherein said air movement device pulsates until the concentration of said generated oxygen gas within said air flow path is reduced to near atmospheric levels.
Claim 13
Dependent Claim
20 words
The rechargeable metal-air battery of claim 1, wherein said hydrogen and said oxygen in said air flow path is recirculated.
Claim 14
Dependent Claim
16 words
The rechargeable metal-air battery of claim 1, wherein said battery comprises a dual air electrode cell.
Claim 15
Dependent Claim
16 words
The rechargeable metal-air battery of claim 1, wherein said housing comprises one or more ventilation passageways.
Claim 16
Dependent Claim
36 words
The rechargeable metal-air battery of claim 14, wherein said ventilation passageways each comprise a cross sectional area and length selected to eliminate substantially air flow into said housing when said air movement device is turned off.
Claim 17
Dependent Claim
79 words
A rechargeable metal-air battery comprising: a housing; at least one metal-air cell within said housing; an air flow path within said housing; and an air movement device communicating with said housing; said battery having the phases of discharging, recharging, and charged; said metal-air cell generating oxygen and hydrogen during said phase of recharging; said air movement device generating within said air flow path a flow of the generated gases during said phase of recharging and during said charged phase.
Claim 18
Dependent Claim
79 words
A rechargeable metal-air battery comprising: a housing; at least one metal-air cell within said housing; an air flow path within said housing; and an air movement device communicating with said housing; said battery having the phases of discharging, recharging, and charged; said metal-air cell generating oxygen and hydrogen during said phase of recharging; said air movement device generating within said air flow path a flow of the generated gases during said phase of recharging and during said charged phase.
Claim 19
Dependent Claim
15 words
The rechargeable metal-air battery of claim 16, wherein said air movement device comprises a fan.
Claim 20
Dependent Claim
19 words
The rechargeable metal-air battery of claim 16, wherein said air movement device pulsates to create a pulsating air flow.
Claim 21
Dependent Claim
32 words
The rechargeable metal-air battery of claim 16, wherein said air movement device has at least one pulse of about 30 seconds to about 2 minutes after said phase of charging is complete.
Claim 22
Dependent Claim
29 words
The rechargeable metal-air battery of claim 16, wherein said air movement device pulsates until the concentration of generated oxygen gas within said housing is reduced to near atmospheric levels.
Claim 23
Dependent Claim
26 words
The rechargeable metal-air battery of claim 16, wherein said air movement device has at least one pulse periodically during said charged phase at a predetermined interval.
Claim 24
Dependent Claim
21 words
The rechargeable metal-air battery of claim 21, wherein said predetermined interval is from about every 10 minutes to about every hour.
Claim 25
Dependent Claim
20 words
The rechargeable metal-air battery of claim 16, wherein said hydrogen and said oxygen in said air flow path is recirculated.
Claim 26
Dependent Claim
16 words
The rechargeable metal-air battery of claim 16, wherein said battery comprises a dual air electrode cell.
Claim 27
Dependent Claim
16 words
The rechargeable metal-air battery of claim 16, wherein said housing comprises one or more ventilation passageways.
Claim 28
Dependent Claim
36 words
The rechargeable metal-air battery of claim 25, wherein said ventilation passageways each comprise a cross sectional area and length selected to eliminate substantially air flow into said housing when said air movement device is turned off.
Claim 29
Dependent Claim
75 words
A rechargeable metal-air battery comprising: a housing; at least one metal-air cell within said housing, said metal-air cell generating oxygen and hydrogen during cell charging; an air flow path within said housing; and an air movement device for directing a flow of the generated gases through said air flow path during cell charging; said air movement device creating a pulsating air flow with at least one pulse of a predetermined length at a predetermined interval.
Claim 30
Dependent Claim
75 words
A rechargeable metal-air battery comprising: a housing; at least one metal-air cell within said housing, said metal-air cell generating oxygen and hydrogen during cell charging; an air flow path within said housing; and an air movement device for directing a flow of the generated gases through said air flow path during cell charging; said air movement device creating a pulsating air flow with at least one pulse of a predetermined length at a predetermined interval.
Claim 31
Dependent Claim
15 words
The rechargeable metal-air battery of claim 27, wherein said air movement device comprises a fan.
Claim 32
Dependent Claim
27 words
The rechargeable metal-air battery of claim 27, wherein said predetermined length of time said air movement device pulsates is from about 10 seconds to about 2 minute.
Claim 33
Dependent Claim
29 words
The rechargeable metal-air battery of claim 27, wherein said predetermined interval at which said air movement device pulsates is from about every 10 minutes to about every 60 minutes.
Claim 34
Dependent Claim
28 words
The rechargeable metal-air battery of claim 27, wherein said air movement device continues to provide said pulsating air flow after completion of cell charging at said predetermined interval.
Claim 35
Dependent Claim
20 words
The rechargeable metal-air battery of claim 27, wherein said hydrogen and said oxygen in said air flow path is recirculated.
Claim 36
Dependent Claim
16 words
The rechargeable metal-air battery of claim 27, wherein said battery comprises a dual air electrode cell.
Claim 37
Dependent Claim
16 words
The rechargeable metal-air battery of claim 27, wherein said housing comprises one or more ventilation passageways.
Claim 38
Dependent Claim
36 words
The rechargeable metal-air battery of claim 34, wherein said ventilation passageways each comprise a cross sectional area and length selected to eliminate substantially air flow into said housing when said air movement device is turned off.
Claim 39
Independent Claim
76 words
A method for reducing gas concentrations in a metal-air battery comprising a plurality of metal-air cells within a housing, an air flow path within said housing, and a fan communicating with said housing, comprising the steps of: generating oxygen and hydrogen during cell recharging into said air flow path; pulsating said fan to create a pulsating air flow through said air flow path whereby the concentration of said gases within said air flow path is reduced.
Claim 40
Independent Claim
76 words
A method for reducing gas concentrations in a metal-air battery comprising a plurality of metal-air cells within a housing, an air flow path within said housing, and a fan communicating with said housing, comprising the steps of: generating oxygen and hydrogen during cell recharging into said air flow path; pulsating said fan to create a pulsating air flow through said air flow path whereby the concentration of said gases within said air flow path is reduced.
Claim 41
Dependent Claim
15 words
The method of claim 30, wherein said step of pulsating takes place during cell charging.
Claim 42
Dependent Claim
18 words
The method of claim 30, wherein said step of pulsating takes place immediately after cell charging is complete.
Claim 43
Dependent Claim
18 words
The method of claim 30, wherein said step of pulsating takes place periodically after cell charging is complete.
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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) | 2001-02-23 | 2001-08-25 | 2002-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-02-23 | 2005-08-25 | 2006-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-02-23 | 2009-08-25 | 2010-02-24 | $7700.00 | Window Closed / Lapsed |