Valve structure

Details Valve structure Valve structure

1977-03-17

1978-10-03

Schwadron, Martin P.

Valves and valve actuation

Mechanical movement actuator

Plural motions of valve

F16K 3144

Patent

active

041180070

ABSTRACT:
A valve structure having a body provided with a threaded recess for receiving a bonnet provided with a chordal flatted tool engaging portion received in an outer portion of the recess when the member is threadedly installed on the body. The outer end of the recess may be radially enlarged to receive a retainer which, when installed therein, extends between the flatted surface of the member and the body to effectively positively prevent further rotation of the member in the body threaded recess, thereby locking the member in the mounted disposition. The retainer may extend outwardly from the body surface portion and may include an outer portion engaging an outer portion of the flatted surface. The retainer may be defined by a pin having an inner end received in a hole provided in the body radially outwardly of the recess.

REFERENCES:
patent: 829485 (1906-08-01), O'Meara
patent: 1313589 (1919-08-01), Eaton
patent: 2203219 (1940-06-01), Jackman, Jr.
patent: 2958504 (1960-11-01), Lindgren

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