Combination autoclave pump and nozzle

Details Combination autoclave pump and nozzle Combination autoclave pump and nozzle

1979-11-30

1982-09-07

Freeh, William L.

Pumps

Including means to prevent foreign material settling from...

By application of separate fluid

92 78, 134 98, 134171, F04B 3900, B08B 302, B08B 900

Patent

active

043481620

ABSTRACT:
The specification describes a fluid dispensing piston pump that is adapted to be cleaned in places without disassembly of the pump. During the cleaning operation the piston of the pump is positioned in an area of larger diameter at the base of the cylinder such that the seal between the piston face and cylinder is broken. Seals are provided for closing the upper end of the cylinder thereby allowing steam or a cleaning fluid which is introduced through the inlet check valve to fill the cylinder and sterilize the piston face and stem members. Steam is then discharged through the outlet check valve.

REFERENCES:
patent: 1993371 (1935-03-01), Jones
patent: 2023854 (1935-12-01), Petricone
patent: 3693640 (1972-09-01), Wettlen
patent: 3818805 (1974-06-01), Johansson

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