Larry W Oetzel

US Patent:

39372502, Feb 10, 1976

Filed:

Aug 19, 1974

Appl. No.:

5/498722

Inventors:

Kenneth F. Golan - Pekin IL
Larry W. Oetzel - Washington IL

Assignee:

Caterpillar Tractor Co. - Peoria IL

International Classification:

F16K 1502

US Classification:

13754317

Abstract:

A check valve comprises a spring biased poppet reciprocally mounted in a housing thereof to normally close an inlet to the valve. A set screw is threadably mounted in an exposed position on the housing to selectively vary the spring load on the poppet to thus vary the pressure setting thereof. An annular elastomeric locking member circumvents the set screw and is compressed radially inwardly thereagainst by a clamping member, releasably attached on the housing, to retain the set screw in its preset position.