US3923549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery connection device
Assignee: Mabuchi Motor Co Ltd
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Filing: 1974-10-24
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Granted: 1975-12-02
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Expires: 1994-10-24
Abstract
Abstract A battery connection device for a battery source cassette using a plurality of assembled cells, wherein the electrical connection between the individual cells is insured by conductive cell caps which not only connect the individual cells but serve to facilitate the discharge of gas which may emanate from the electrode regions of the cells.
Inventors
- 👤 Kenichi Mabuchi
- 👤 Toshihisa Tsuchimochi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:23
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/20; H01M50/204; H01M50/207; H01M50/213; H01M50/50; H01M50/502; H01M6/00; H01M6/42; H01M6/44; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
65 words
IN A BATTERY SOURCE CASSETTE HAVING A PLURALITY OF CELLS, THE IMPROVEMENT COMPRISING A CUP-SHAPED, ELECTRICALLY CONDUCTIVE CELL-CONNECTING CAP HAVING A CENTRAL PROJECTING PORTION PROVIDED WITH APERTURES THERIN AND A SKIRT PORTION, SAID CENTRAL PROJECTING PORTION BEING WELDED TO AN ELECTRODE PORTION OF A FIRST CELL AND SAID SKIRT PORTION BEING WELDED TO AN ELECTRODE PORTION OF A SECOND CELL ADJACENT TO SAID FIRST CELL.
Claim 2
Dependent Claim
65 words
IN A BATTERY SOURCE CASSETTE HAVING A PLURALITY OF CELLS, THE IMPROVEMENT COMPRISING A CUP-SHAPED, ELECTRICALLY CONDUCTIVE CELL-CONNECTING CAP HAVING A CENTRAL PROJECTING PORTION PROVIDED WITH APERTURES THERIN AND A SKIRT PORTION, SAID CENTRAL PROJECTING PORTION BEING WELDED TO AN ELECTRODE PORTION OF A FIRST CELL AND SAID SKIRT PORTION BEING WELDED TO AN ELECTRODE PORTION OF A SECOND CELL ADJACENT TO SAID FIRST CELL.
Claim 3
Dependent Claim
28 words
A battery connection device as claimed in claim 1, in which said apertures in said connecting cap are formed in the curved part of said central projecting portion.
Claim 4
Dependent Claim
36 words
A battery connectioN device as claimed in claim 1, in which an insulating washer is interposed between the cell welded to said central projecting portion and the skirt portion of said cup-shaped, electrically conductive, connecting cap.
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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |