Seal for a joint or juncture – Seal between fixed parts or static contact against... – Contact seal for a pipe – conduit – or cable
Patent
1997-01-14
1999-10-12
Knight, Anthony
Seal for a joint or juncture
Seal between fixed parts or static contact against...
Contact seal for a pipe, conduit, or cable
277616, 277633, 277637, F16J 1512
Patent
active
059644680
ABSTRACT:
An improved spiral wound gasket is disclosed that deters and redirects buckling. The invention includes the following: an integral inner ring, a gasket element, outer wraps and a outer guide ring. The integral inner ring is a winding of a thin strip of metal of at least seven revolutions that is overlapped over itself and secured to itself. The gasket element is wound around the integral inner ring and includes a second thin strip of metal and also a thin strip of filler material so as to form alternate layers of the thin strip of metal and filler material. The outer wraps are a winding around the circumference of the gasket element of a thin strip of metal. The invention also discloses a new outer guide ring that has a inside edge that, together with the outside circumferential edge of a spiral wound gasket, defines apertures. These apertures or expansion zones allow filler material to displace radially outwardly rather than radially inwardly to form buckles.
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Chester Rickey W
Malgee David G.
Malgee Paul F.
Waterland III Alfred F.
Knight Anthony
Pickard Alison K.
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