Gaskets with a non-compressible core and one or more compressible layers
AssigneeLydall Performance Materials (US), Inc.
InventorsBrian C. Lehr, Krishna Venkataswamy, Jeffery L. Barrall
Life of this patent
Estimating the term…
Abstract
According to some embodiments, a multi-layer gasket with a non-compressible core, formed of any material that is relatively rigid and incompressible and can serve as a carrier for a gasket, and compressible layers, formed of any flowable or compressible sealing material with appropriate rheology for a particular sealing application, in the form of edge or surface coatings, is presented.
Claims20
A gasket for forming a seal between a first mating surface and a second mating surface, comprising:
- a non-compressible substrate with a first surface, a second surface and a central opening having a surrounding edge;
- a first compressible layer applied to at least a portion of the first surface;
- a second compressible layer applied to at least a portion of the second surface;
- and
- an edge coating applied to the surrounding edge of the central opening.
A gasket for forming a seal between a first mating surface and a second mating surface, comprising:
- a non-compressible substrate with a first surface, a second surface, and a central opening;
- a first compressible layer configured to cover the entire first surface and to contact the first mating surface in a surface-to-surface abutting relationship;
- and
- a second compressible layer configured to cover the entire second surface and to contact the second mating surface in a surface-to-surface abutting relationship,
- wherein at least one of the first compressible layer and second compressible layer is conformed to fill at least one defect in at least one of the first mating surface and the second mating surface upon compression of the gasket.
A method of sealing a first mating surface and a second mating surface, the method comprising:
- providing a gasket having a non-compressible substrate, a first compressible layer conformed to sealingly engage with the first mating surface, and a second compressible layer conformed to sealingly engage with the second mating surface, wherein the non-compressible substrate is configured between the first compressible layer and the second compressible layer;
- positioning the gasket between the first mating surface and the second mating surface;
- compressing the gasket;
- conforming at least one of the first compressible layer and the second compressible layer to distribute compression forces evenly across the surface area of the gasket;
- and
- uniformly sealing the first compressible layer and the first mating surface and the second compressible layer and the second mating surface.
Dependencies are inferred from the claim text.