Engine gasket with crushable spacer bosses
AssigneeCurty Payen S.A.
InventorGerard Jargeaix
Life of this patent
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Abstract
An engine gasket is formed as a thin sheet of durable material having front and back faces and formed with an array of throughgoing holes and with surface formations projecting at most to a plane parallel to the front face. According to this invention the gasket is formed with fragile crushable spacer bosses projecting from the front face past the plane so that when a plurality of such gaskets are stacked the bosses will hold them substantially out of contact with each other except at the bosses.
Claims8
In an engine gasket formed as a thin sheet of durable material having front and back faces and formed with an array of throughgoing holes and with surface formations projecting from the front face to a plane parallel to the front face, the improvement wherein
- the gasket is formed with fragile crushable spacer bosses projecting from the front face past the plane, whereby when a plurality of such gaskets are stacked the bosses will hold them substantially out of contact with each other except at the bosses, and
- the bosses are unitarily formed with the gasket.
The engine gasket defined in claim 3 wherein the bosses are unitarily formed with the gasket.
In an engine gasket formed as a thin sheet of durable material having front and back faces and formed with an array of throughgoing holes and with surface formations projecting from the front face to a plane parallel to the front face, the improvement wherein
- the gasket is formed with fragile crushable spacer bosses projecting from the front face past the plane, whereby when a plurality of such gaskets are stacked the bosses will hold them substantially out of contact with each other except at the bosses,
- the sheet is provided on each of its faces with a metallic face layer, and
- the bosses are formed punched out of the sheet offset from the front-face layer to form respective recesses on the back face, the metallic face layer on the back face covering the recesses and the metallic face layer on the front face being formed with apertures through which the respective bosses pass.
Dependencies are inferred from the claim text.