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US 4,859,547 AGranted
Battery terminal and method
AssigneeGates Energy Products, Inc.
InventorsDavid W. Adams, Larry K. W. Ching, Jr., Neil Puester
Life of this patent
Estimating the term…
Abstract
A battery terminal post of the type for use in electrolytic devices contained by resilient electrolyte-resistant walls, wherein an opening in the electrolytic device wall is radially enlarged to form a bushing, into which is inserted a second T-shaped lead alloy bushing, into which in turn there is inserted a complementary third bushing of pure lead, which three bushings are then forced into intimate sealing contact by being radially expanded by the action of a punch and die in a swaging operation.
Claims31
An assembly for sealing against leakage of a fluid between a terminal positioned through an opening in a wall of a container and said wall, said assembly comprising:
- a first metallic bushing mounted within said opening and having a collar and a flange;
- and
- a second metallic bushing mounted within said first bushing and having a collar and a flange, said first bushing and said second bushing being plastically deformed by radial expansion into intimate sealing contact, said terminal capable of insertion through said second bushing.
An electrolytic device comprising:
- a. a container comprising a wall of resilient, electrolyte-resistant material, said wall having an opening therein;
- b. a first outer substantially annular metallic bushing that is mounted interior of said wall opening;
- c. a second inner substantially annular metallic bushing that is mounted interior of said first bushing, said first bushing and said second bushing being forced into intimate sealing contact with each other and said wall, the first bushing and the second bushing being work hardened by radial expansion to different degrees;
- and
- d. a terminal post inserted through said second bushing.
2 more elements
An electrolytic device comprising:
- a. a container comprising a wall of resilient, electrolyte-resistant material, said wall having an opening therein;
- b. a first outer substantially annular metallic bushing that is mounted interior of said wall opening;
- c. a second inner substantially annular dualflanged metallic bushing that is mounted interior of said first bushing, said first bushing and said second bushing being forced into intimate sealing contact with each other and said wall, the first bushing and second bushing being work-hardened to different degrees;
- and
- d. a terminal post inserted through said second bushing.
2 more elements
An electrolytic device comprising:
- a. a container comprising a wall of resilient, electrolyte-resistant material, said wall having an opening therein defining a sealing surface and at least one raised ridge on said sealing surface;
- b. a first outside substantially annular metallic bushing that is mounted interior of said wall opening;
- c. a second inside substantially annular metallic bushing that is mounted interior of said first bushing, said first bushing and said second bushing being forced into intimate sealing contact with each other and said wall interior;
- and
- d. a terminal post inserted through said second bushing, said terminal being in electrical contact with contents of said electrolytic device.
2 more elements
An electrolytic device comprising:
- a. a container comprising a wall of resilient, electrolyte-resistant material, said wall having an opening therein defining a sealing surface and at least one raised ridged on said sealing surface;
- b. a first outside substantially annular metallic bushing that is mounted interior of said wall opening;
- c. a second substantially annular dual-flanged metallic bushing that is mounted interior of said first bushing, said first bushing and said second bushing being forced into intimate sealing contact with each other and said wall interior;
- and
- d. a terminal post inserted through said second bushing.
2 more elements
An electrolytic device comprising:
- a. a container comprising a wall of resilient, electrolyte-resistant material, said wall having an opening therein, surrounded by an enlarged portion defining a nonconductive polymeric bushing having at least one raised ridge thereon;
- b. a first outside substantially annular metallic bushing, having a collar mounted interior of said polymeric bushing and an outside flange;
- c. a second inside substantially annular metallic bushing, having a collar mounted interior of said first bushing and an outside flange, said first bushing and said second bushing being radially expanded into intimate sealing contact with each other and said polymeric bushing, providing residual linear and axial stresses on sealing contact surfaces to help maintain said seal;
- and
- d. a terminal post inserted through said second bushing.
2 more elements
An electrolytic device comprising:
- a. a container comprising a wall of resilient, electrolyte-resistant material, said wall having an opening, surrounded by an enlarged portion defining a nonconductive polymeric bushing having at least one raised ridge thereon;
- b. a first outside substantially annular metallic bushing having a collar mounted interior of said polymeric bushing and an outside flange;
- c. a second inside substantially annular dualflanged metallic bushing having a first collar, a first outside flange, a second collar mounted on a different circumference of the first flange and oriented substantially opposed to the first collar, and a second flange mounted on the second collar, said first bushing and said second bushing being radially expanded into intimate sealing contact with each other and said polymeric bushing, providing residual linear and axial stresses on the sealing contact surfaces to help maintain said seal;
- and
- d. a terminal post inserted through said second bushing.
2 more elements
A method of making a battery terminal connection through an opening in the battery case wall comprising the steps of:
- a. fabricating a suitable electrolyte-resistant battery case wall, leaving at least one opening therein;
- b. installing a first, outer annular bushing into the opening of the case wall;
- c. installing a second, inner annular bushing into a bore in the first bushing;
- and
- d. sealing the first bushing, second bushing and wall opening together by swaging.
2 more elements
Dependencies are inferred from the claim text.