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US 5,204,654 AGranted
Fuse housing having fluid sealing assembly
AssigneeCooper Industries, Inc.
InventorNoah D. Hay
Life of this patent
Estimating the term…
Abstract
A fuse housing for an oil-cooled transformer that uses a stopper to prevent oil from escaping the transformer tank as the fuse and fuse holder are removed. During normal operation, the stopper is held in an open position by the fuse holder. When the fuse and fuse holder are removed, the stopper closes and seals the upper end of the holder, preventing oil from draining through the upper portion of the fuse housing and escaping from the transformer tank.
Claims9
A fuse housing for a bayonet-type fuse, said fuse housing comprising:
- a substantially tubular housing, said housing mountable in a transformer body and having an upper and lower portion, said upper portion accessible from an area outside of said transformer body, said lower portion of said housing constructed and arranged to hold said fuse in fluid, said upper and lower housing portions being connected by at least one rib;
- and
- means for sealing a distal end of said upper portion of said housing to prevent introduction of said fluid into said upper portion of said housing as a fuse holder and said fuse are removed.
Dependencies are inferred from the claim text.