Abrasive fluid pumping apparatus

Details Abrasive fluid pumping apparatus Abrasive fluid pumping apparatus

1986-11-26

1988-06-28

Croyle, Carlton R.

Pumps

With condition responsive pumped fluid control

Pressure responsive relief or bypass valve

417440, 417480, 92 90, 92103M, F04B 4900, F04B 4300

Patent

active

047535784

ABSTRACT:
A pumping apparatus is formed by a flexible, metal wall structure surrounding and defining a hollow interior chamber and with a mechanism to compress and expand the structure to create a pumping action through an opening to the chamber. The pumping apparatus forms part of an overall system particularly adapted for pumping abrasive liquids.

REFERENCES:
patent: 1454886 (1923-05-01), Giesler
patent: 1554332 (1925-09-01), Callow
patent: 1711803 (1929-05-01), Munday
patent: 1843068 (1932-01-01), Von Wangenheim et al.
patent: 1893776 (1933-01-01), Hull
patent: 1927617 (1933-09-01), Schmidt
patent: 1992139 (1935-02-01), Armstrong
patent: 2204738 (1940-06-01), Swan
patent: 2267280 (1941-12-01), Kuhnel
patent: 2853024 (1958-09-01), Bruce
patent: 3463397 (1969-08-01), Mecklin et al.
patent: 4667069 (1987-05-01), Cholkeri

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