Seal unit

Details Seal unit Seal unit

1979-10-15

1981-07-14

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277117, 277144, 277152, 277165, 277190, F16J 1532

Patent

active

042782600

ABSTRACT:
A seal unit for providing a fluid seal between a shaft and a housing. THe seal unit includes a seal element screw threadedly received within an annular casing. The seal is made of a rigid but resilient material so that on rotation of the seal element within the casing the seal element is caused to deflect to bring it into sealing engagement with the shaft. Such an arrangement makes it possible to use a seal element having an internal diameter larger than the shaft to be sealed so that the seal element may be slid over the shaft without causing damage to the sealing surface of the seal element.

REFERENCES:
patent: 2192565 (1940-03-01), Szekely
patent: 2247031 (1941-06-01), Norton
patent: 2358408 (1944-09-01), McMurray

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