Fife couplings

Details Fife couplings Fife couplings

1979-05-30

1981-06-02

Freeh, William L.

Pumps

Expansible chamber type

Moving cylinder

285219, F04B 1922, F04B 2900, F16L 1500

Patent

active

042708869

ABSTRACT:
A pumping apparatus has a body part including an inner sleeve and an outer sleeve. A passage is formed in the sleeve with the portion of the passage in the outer sleeve being threaded to receive a pipe fitting. Grooves are machined in the outer sleeve about the passage to reduce the stressing of the outer sleeve when the fitting is tightened.

REFERENCES:
patent: 2342425 (1944-02-01), Parker
patent: 2770260 (1956-11-01), Henderson
patent: 2954246 (1960-09-01), Totah et al.
patent: 4055387 (1977-10-01), Potter
patent: 4067304 (1978-01-01), Potter

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