Seal construction

Details Seal construction Seal construction

1976-06-04

1977-10-11

Aegerter, Richard E.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277193, 277205, F16J 1518

Patent

active

040531635

ABSTRACT:
A one-piece seal member of elastomeric material having an endless main body portion and a pair of leg portions projecting axially from the main body portion in side-by-side relation. The leg portions each have outer sealing surfaces and inner surfaces, and an endless, unobstructed narrow groove is formed between the leg portions. The groove has side walls that extend axially from a closed base to a normally open end at the juncture between the inner surfaces of the leg portions. The leg portions thus flex toward each other about the base of the groove from an unstressed position when the groove is open to provide relatively low resistance to movement of the sealing surfaces. The legs have an installed position relative to each other when the open end of the groove closes, whereupon the resistance to movement of sealing surfaces toward each other, and hence the sealing pressure exerted thereby, is abruptly increased.

REFERENCES:
patent: 2665151 (1954-01-01), Fisler et al.
patent: 2907596 (1959-10-01), Maha
patent: 3013830 (1961-12-01), Milligan
patent: 3447819 (1969-06-01), Borsum et al.
patent: 3519280 (1970-07-01), Genz
patent: 3790179 (1974-02-01), Scannell
patent: 3892418 (1975-07-01), Felt

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