Gasketing material
AssigneeDana Corporation
InventorKanu G. Shah
Life of this patent
Estimating the term…
Abstract
A material suitable for use in gaskets is disclosed. The material can comprise: (a) a mass of intermeshed fibers bonded to one-another at points of contact by an elastomeric binder; and (b) graphite distributed throughout the intermeshed fibers in an amount of from about 45% to 95% of the total weight of the material. The fibers can be organic and selected from the group consisting of nylon, polyester, polyamide, aramid and polybenzimidazole, or of cellulose, ceramic, glass or wollastonite. A gasket comprising the material, and a gasket comprising at least one surface layer and at least one additional layer of the material bonded thereto are also disclosed.
Claims22
A fibrous material comprising:
- (a) a sheet of paper-like material ranging in thickness from 0.020 to 0.070 inch, and composed of a felted mass of intermeshed fibers bonded to one-another at points of contact by a binder;
- and
- (b) flake graphite distributed throughout the intermeshed fibers, wherein the fibers and the graphite are uniformly distributed through the sheet and the graphite constitutes from about 45% to 95% of the material based upon the weight of the fibers, the binder and the graphite.
A gasket comprising at least one surface layer and at least one additional layer of fibrous material bonded to said surface layer, said fibrous material comprising a sheet of paper-like material ranging in thickness from 0.020 to 0.070 inch, and composed of a felted mass of intermeshed fibers bonded to one-another at points of contact by a binder and flake graphite distributed throughout the intermeshed fibers, wherein the fibers and the graphite are uniformly distributed through the sheet and the graphite constitutes from about 45% to 95% of the material, based upon the weight of the fibers, the binder and the graphite.
A gasket comprising:
- (a) a sheet of paper-like material ranging in thickness from 0.020 to 0.070 inch, and composed of a felted mass of intermeshed fibers bonded to one-another at points of contact by a binder;
- and
- (b) flake graphite distributed throughout the intermeshed fibers, wherein the fibers and the graphite are uniformly distributed through the sheet and the graphite constitutes from about 45% to 95% of the gasket, based upon the weight of the fibers, the binder and the graphite.
Dependencies are inferred from the claim text.