Packing having multiple seal portions

Details Packing having multiple seal portions Packing having multiple seal portions

1985-11-12

1986-12-09

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277215, 13762546, 251314, F16J 1506, F16K 1102

Patent

active

046276246

ABSTRACT:
A packing which includes a plurality of seal portions integrally formed on an annular elastic sheet. The seal portions are spaced about the circumference of the sheet and project from one side surface of the sheet. Each seal portion has a through hole extending entirely through the sheet parallel to the center axis of the sheet. In the preferred embodiment, the packing is used in a rotary change-over valve and each seal portion has an annular rib at its free end which is adapted to fit in a corresponding hole in a rotary valve inlet element with the packing held in a recess in the inlet element between the inlet element and a rotary valve outlet element.

REFERENCES:
patent: 2908293 (1959-10-01), Johnson
patent: 3385321 (1968-05-01), Ehrens et al.
patent: 3488032 (1970-01-01), Scott
patent: 3961749 (1976-06-01), Orcutt
patent: 4156437 (1979-05-01), Chivens et al.
patent: 4448214 (1984-05-01), D'Alessio
patent: 4501408 (1985-02-01), Pawelzik et al.

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