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OwnerRickey W Chester, David G. Malgee +2inventors
InventorsRickey W Chester, David G. Malgee, Paul F. Malgee, Alfred F. Waterland, III
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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.
A spiral wound gasket comprising an integral inner ring, a gasket element, and outer wraps;
A spiral wound gasket assembly comprising an integral inner ring, a gasket element, outer wraps and an outer guide ring;
A spiral wound gasket assembly comprising an integral inner ring, a gasket element, outer wraps and an outer guide ring;
An outer guide ring comprising an annular ring of desired shape having flat, parallel sides, the distance between which sides defines the thickness of the annular ring, an outside edge that defines an outside circumference of the outer guide ring, an inside edge that carries a spiral wound gasket within the outer guide ring, and internal expansion apertures between the outside edge and inside edge of the outer guide ring, said internal expansion apertures being voids entirely between the outside circumference and inside edge of the outer guide ring and extending through the entire thickness of the annular ring and of such size and dimension to allow for outward flow of the spiral wound gasket when such spiral wound gasket is installed.
An outer guide ring comprising an annular ring of desired shape having generally flat, parallel sides, the distance between which sides defines the thickness of the annular ring, an outside edge that defines an outside circumference of the outer guide ring, an inside edge that carries a spiral wound gasket within the outer guide ring, and expansion ridges between the outside edge and inside edge of the annular ring, said ridges extending into at least one side of the annular ring but not extending through the entire thickness of the annular ring and of such size and dimension to allow for outward flow of the spiral wound gasket when such spiral wound gasket is installed.
A method of forming a spiral wound gasket comprising:
Dependencies are inferred from the claim text.