Metal gasket

Details Metal gasket Metal gasket

1989-06-23

1990-08-14

Shoap, Allan N.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277236, F02F 1100, F16J 1500

Patent

active

049481533

ABSTRACT:
A metal gasket has an opening for allowing fluid to pass through the gasket, relatively small through-holes for receiving bolts, and a raised portion surrounding the entire circumference of the opening. The raised portion has a double-bead structure including an inner peripheral bead portion formed by an intermediate flat portion and a first frusto-conical portion which connects the intermediate flat portion with an inner peripheral flat portion, and an outer peripheral bead portion formed by the intermediate flat portion and a second frusto-conical portion which connects the intermediate flat portion with an outer peripheral flat portion. The second frusto-conical portion is inclined at an angle which is smaller than that at which the first frusto-conical portion is inclined.

REFERENCES:
patent: 3091472 (1963-05-01), Balfe
patent: 3767216 (1973-10-01), Martin

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