Combined fill and relief valve

Details Combined fill and relief valve Combined fill and relief valve

1998-11-12

2000-06-27

Hepperle, Stephen M.

Lubrication

Lubricators

Refilling device

137226, 1375122, F01M 1104

Patent

active

060795190

ABSTRACT:
A combined fill and relief valve is provided for a fluid chamber containing grease under pressure relative to surrounding atmosphere. The valve includes a housing having a longitudinal bore, the longitudinal bore including an inlet and an outlet. The housing also includes a transverse relief port in fluid communication with the atmosphere. A grease fitting is fixed to the housing against relative movement and is in fluid communication with the longitudinal bore. A fill valve assembly is fitted in the longitudinal bore and selectively permits flow therethrough from the inlet to the outlet. A relief valve assembly is fitted in the longitudinal bore and controls fluid passage between the outlet and the relief port.

REFERENCES:
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patent: 4948092 (1990-08-01), Kasper et al.
patent: 5694969 (1997-12-01), DeVuyst

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