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U.S. Department of Energy
Office of Scientific and Technical Information

Hydraulic seal battery terminal

Patent ·
OSTI ID:6544498

A self-sealing battery terminal is described that includes a hydroformed Inconel outer case, a low shear strength sealant material, and a central post in the form of a bolt which acts as both a conductor and transmits the preload from a pair of Belleville washers to a lower ceramic washer. The lower ceramic washer acts like a piston to compress the sealant when the nut on the central post is tightened. The Belleville washers serve to maintain a minimum tension on the central post. A top ceramic washer is held in place by the tension in the central bolt as long as the tension exceeds a minimum value.

Assignee:
U S Of America Air Force Secretary Of
Patent Number(s):
US 4224388
OSTI ID:
6544498
Country of Publication:
United States
Language:
English