US4469145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making battery plates
Assignee: Chloride Group Ltd
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Filing: 1981-08-17
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Granted: 1984-09-04
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Expires: 2001-08-17
Abstract
Abstract This invention is a method of making negative battery plates in a continuous process, in which a skeletal grid is cast continuously to have the structure of a number of plate grids side by side and longitudinally integrally connected together in the casting. After casting the skeletal grid is pasted, tissues are applied on either side, and then the grid is cut by slitting and transversely to separate the composite grid into separate pasted battery plates.
Inventors
- 👤 Norman W. Fletcher
- 👤 Geoffrey J. May
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:12
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/70; H01M4/72; H01M4/73; B; B22; B22D; B22D25/00; B22D25/02; B22D25/04; H01M4/14; H01M4/16; H01M4/20; H01M4/82; H01M4/84; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T29/00; Y10T29/10; Y10T29/49; Y10T29/49002; Y10T29/49108; Y10T29/49115
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
102 words
A method of making battery plates, said method comprising the steps of: continually casting a skeletal grid in the form of two parallel lines of plate grids, each grid having a plurality of bars radiating from a connection lug, each of the bars of one line of plate grids being united with the bars of the adjacent plate in the other of the parallel lines, and also being united with the bars of the adjacent plates in the same line; and cutting the cast grid transversely to, and parallel with, the direction of the parallel lines, so as to form individual plates.
Claim 2
Independent Claim
102 words
A method of making battery plates, said method comprising the steps of: continually casting a skeletal grid in the form of two parallel lines of plate grids, each grid having a plurality of bars radiating from a connection lug, each of the bars of one line of plate grids being united with the bars of the adjacent plate in the other of the parallel lines, and also being united with the bars of the adjacent plates in the same line; and cutting the cast grid transversely to, and parallel with, the direction of the parallel lines, so as to form individual plates.
Claim 3
Dependent Claim
59 words
The method as claimed in claim 1 in which the skeletal grids are cast continuously, said method including the steps of continuously pasting said cast grids and applying continuous glass tissues on either surface of the pasted skeletal grid, said pasting and tissue applying steps being performed on said cast grids before each line is cut into individual plates.
Claim 4
Dependent Claim
21 words
A method as claimed in claim 1 in which the grid is pasted with battery active material before said cutting step.
Claim 5
Dependent Claim
25 words
A method as claimed in claim 1 or 2, in which tissues are applied on opposite sides of the pasted grid before said cutting step.
Claim 6
Dependent Claim
37 words
A method as claimed in claim 2 in which said cutting step consists of longitudinal slitting of said lines into separate side by side plates, and periodical transverse cutting of said separate lines into longitudinally separated plates.
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) | 1987-09-04 | 1988-03-05 | 1988-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-04 | 1992-03-05 | 1992-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-04 | 1996-03-05 | 1996-09-04 | $7700.00 | Window Closed / Lapsed |