Metal working – Bias cutting of tubular stock
Patent
1980-01-28
1981-09-01
Culver, Horace M.
Metal working
Bias cutting of tubular stock
H01M 472, H01M 3504
Patent
active
042863627
ABSTRACT:
Lightweight grids for lead-sulfuric acid type storage batteries are characterized by their laminated reticulated open meshed portions for retaining chemically active, lead-based paste materials. The laminated portions comprise a support layer of a rigid or semi-rigid plastic, an electrically conductive lead foil layer coextensive with the plastic layer, and a sulfuric acid resistant adhesive bonding layer between the plastic support and foil layers. In a preferred embodiment, the grid wires and nodes are twisted relative to the principal plane of the grid so that the lead foil layer is oriented to face the grid header portion and act as a ledge for retaining a desired battery paste. Such laminated grids may be rapidly and inexpensively formed by expanded metal processes of the type used to make battery grids made entirely of lead.
REFERENCES:
patent: 3853626 (1974-12-01), Daniels, Jr. et al.
patent: 3890160 (1975-06-01), Daniels, Jr.
patent: 3891459 (1975-06-01), McCartney, Jr. et al.
patent: 4087596 (1978-05-01), Sauer et al.
patent: 4098967 (1978-07-01), Biddick et al.
patent: 4194060 (1980-03-01), Scholl et al.
Hammar Richard H.
Harvey Douglas J.
Culver Horace M.
General Motors Corporation
Harasek Elizabeth F.
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