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Method and apparatus for sealing a battery terminal post

Patent ·
OSTI ID:6632033
; ;
This patent describes a battery terminal seal assembly for sealing the interface between a battery container cover and a cylindrical terminal post extending therethrough from the interior of the container comprising: a. an integral sleeve extending downwardly from the underside of the cover, the sleeve having an upwardly opening interior portion defining an annular space around the terminal post and a lower portion extending generally radially inwardly toward and terminating adjacent to the terminal post; b. a compressible elastomer bushing having a cylindrical interior surface with a diameter approximately equal to the diameter of the terminal post and first and second frustoconical exterior surfaces oppositely angled and intersecting one another, one of the frustoconical surfaces having an exterior surface which defines in axial cross section a base end and a narrower lip end, the bushing adapted to be inserted around the terminal post within the annular space; c. an annual retainer having a downwardly depending flange portion adapted to the inserted downwardly around the terminal, into the annular space and over the bushing; d. the flange portion of the retainer bearing against a major portion of an exterior surface of the first frustoconical surface, the lower portion of the sleeve bearing against a major portion of an exterior surface of the second frustoconical surface and the terminal post providing coextensive encapsulation of all but the lip end of the bushing such that downward insertion of the retainer compresses the bushing radially and causes axial extrusion of the bushing only in the direction of the lip end thereof along the terminal post; and, e. means on the retainer and the sleeve for securing the bushing in its compressed and extruded state.
Assignee:
Globe-Union, Inc., Milwaukee, WI
Patent Number(s):
US 4775604
OSTI ID:
6632033
Country of Publication:
United States
Language:
English

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Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ELASTOMERS
ELECTRIC BATTERIES
ELECTRIC CONTACTS
ELECTRICAL EQUIPMENT
ELECTROCHEMICAL CELLS
EQUIPMENT
FABRICATION
POLYMERS
SEALS
SLEEVES
TOOLS