Half-keystone compression ring

Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member


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277236, F16J 920




An improved half-keystone compression ring for use in an internal combustion engine. The improved ring's bottom side is essentially flat, radially and circumferentially, in the closed operating position.

patent: 2459395 (1949-01-01), Smith
patent: 4123072 (1978-10-01), Sharpe


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