Housing with a pressure-equalizing element which is retained wat

Details Housing with a pressure-equalizing element which is retained wat Housing with a pressure-equalizing element which is retained wat

1992-02-13

1993-06-01

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

137197, 137199, 215261, 220373, F16T 120, B65D 5116

Patent

active

052153126

ABSTRACT:
A pressure equalizing membrane made of gas permeable, water impermeable polytetrafluoroethlyene is preassembled to a retaining ring and the ring retained within a housing wall with a watertight seal. Either a one or two part retaining ring is used as a holder for the PTFE membrane. The retaining ring is provided with at least one circumferential elastic sealing lip about its periphery for providing a press fit of the membrane and retaining ring assembly into the housing wall opening, and for providing a watertight seal about the membrane.

REFERENCES:
patent: 3507708 (1970-04-01), Vignaud
patent: 3805991 (1974-04-01), Cheladze et al.
patent: 4071040 (1978-01-01), Moriarty
patent: 4596338 (1986-06-01), Yousif
patent: 4624286 (1986-11-01), Frohn
patent: 4794942 (1989-01-01), Yasuda et al.

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