Three-piece heat resistant gasket
AssigneeEagle-Picher Industries, Inc.
InventorsJohn W. Decker, Myron W. Tubbs
Life of this patent
Estimating the term…
Abstract
A three-piece heat resistant gasket having a rigid body molded of heat insulating material forming a relatively thin web around the fluid passage to be sealed. Two resiliently compressible gasket elements in the form of flat slabs of heat insulating materials are secured to the opposite faces of the web around the fluid passage, with their outer faces lying slightly above bolt hole-containing bosses, formed as part of the body, which limit the compression of the gasket elements. The provision of a large number of small cavities in the web, which are closed by the gasket elements, significantly reduces the rate of heat transfer through the gasket.
Claims12
A heat resistant gasket comprising,
- a one-piece rigid heat insulating body of molded resin and having
- a web portion presenting two oppositely facing planar parallel faces, the web portion surrounding at least one fluid passage which extends through it from one said face to the other, and
- a plurality of bolt hole-presenting bosses integral with said web portion and projecting outwardly from said faces,
- a two compressible gaskets elements, each a flat slab formed from a resilient gasket material which is heat insulative, said elements being adhesively secured to the respective planar faces of the web portion of said rigid body,
- said bosses by their outward projection from said faces establishing seats on said web portion on which they position said gasket elements,
- each said gasket element abutting the bosses which thereby locate the gasket element on its seat with respect to said passage,
- each said gasket element having an opening through it which is substantially congruent with the fluid passage in said rigid body,
- the combined thickness of the web portion and the two gasket elements secured thereon being greater than the thickness of the body at the bosses.
Dependencies are inferred from the claim text.