Mono-seal pump piston

Details Mono-seal pump piston Mono-seal pump piston

1975-05-05

1976-08-17

Cohen, Irwin C.

Expansible chamber devices

Piston

Side wall portion includes peripheral axially extending...

92258, F16J 100, F16J 112

Patent

active

039747468

ABSTRACT:
A mono-seal pump piston comprising a mono-seal assembly including a central seal-supporting hub having a plurality of annular support ribs and a pair of resilient seals oppositely disposed on either side of the supporting hub, the seals including an outer annular sealing lip for sealing engagement with an inner wall of a pump cylinder and an inner annular seaing lip for sealing engagement about the piston rod which passes therethrough. The pump piston is retained on the piston rod by a pair of mounting followers positioned on either side of the piston assembly and held thereon by a nut.

REFERENCES:
patent: 1577732 (1926-03-01), Lamb
patent: 2119419 (1938-05-01), Clench
patent: 2341803 (1944-02-01), Mott
patent: 2403020 (1946-07-01), Parsons
patent: 2443110 (1948-06-01), MacClatchie
patent: 2526465 (1950-10-01), Francis, Jr.
patent: 2859078 (1958-11-01), Jacobs
patent: 3094904 (1963-06-01), Healy

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