Rotary seal for vacuum and pressure systems

Details Rotary seal for vacuum and pressure systems Rotary seal for vacuum and pressure systems

1977-08-15

1978-09-19

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

285281, F16J 1534

Patent

active

041149033

ABSTRACT:
A rotary seal device for pressurized gas and vacuum pumping systems comprising an annular member coaxially mounted on the end of a hollow rotary shaft and having a spring-loaded carbon face pressing against a ceramic disc secured in coaxial alignment with the end of a stationary pipe fitting within a housing member having a threaded end cap for adjusting the pressure between the carbon face and ceramic disc.

REFERENCES:
patent: 2305725 (1942-12-01), Meyer
patent: 2331615 (1943-10-01), Meyer
patent: 2698195 (1954-12-01), Pollard
patent: 3003796 (1961-10-01), Meyer
patent: 3015504 (1962-01-01), Fulton et al.
patent: 3090627 (1963-05-01), Tankus
patent: 3961799 (1976-06-01), Peet

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