Elastic metal gasket with offset projecting parts
AssigneeCommissariat a l'Energie Atomique
InventorsPhilippe Caplain, Laurent Mirabel, Christian Rouaud
Life of this patent
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Abstract
The open circular section gasket is not deformed under flattening while nevertheless ensuring the leaktightness of the two spaces to seal. Each contact surface (16) is slightly inclined and has a slightly offset projecting part (15) such that the summits of the two projecting parts define an axis that is offset with respect to the center line (A2) of the general circular shape of the gasket (10). When the gasket is flattened, the contact surfaces (16) tend to become parallel, the projecting parts (15) come closer to the center line (A2). Application to cases of static sealing.
Claims14
Elastic metal gasket (10) comprising an elastic metal core and external metal sheath (14), in which the metal core is encased, the gasket (10) presenting, when idle, an open circular section defining a center line (A2), that is a straight line passing through the geometric center of a section of the idle gasket, a concave opening (12) being found between two opposing clearance surfaces (16) each having a projecting part (15) whose summit is designed to come into leaktight contact with an object (8) under a determined preload, characterized such that when idle the projecting parts (15) are slightly offset on the same side opposite to said opening with respect to the center line (A2), such that they come closer to this center line under the effect of preload.
Dependencies are inferred from the claim text.