Pump having adjustable packing

Details Pump having adjustable packing Pump having adjustable packing

1985-02-08

1988-10-04

Freeh, William L.

Pumps

Expansible chamber type

Valved piston

92168, 277 64, 277106, F04B 2104, F16T 1518

Patent

active

047753030

ABSTRACT:
This invention relates to an improvement in a reciprocating piston type pump having spaced radially expanding packings which are expandable in response to axial pressure on the packings. There is also included a compression spring between the packings. The pump contains means to vary the compression of the compression spring dependent upon the pressures within the pump during operation.

REFERENCES:
patent: 1281412 (1918-10-01), Parsons
patent: 1384097 (1921-07-01), Schlacks
patent: 1590849 (1926-06-01), Nilson
patent: 2192325 (1940-03-01), Nilson
patent: 3251602 (1966-05-01), Williams et al.
patent: 4277229 (1981-07-01), Pacht
patent: 4299395 (1981-11-01), Reed

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