Abstract: A pedestal extends upwardly from the body of a gate valve housing in a straddling relationship to the gate. An operator, detachably attachable to the pedestal, includes a hand wheel operating through a pinion gear to impart translatory movement to a vertically oriented rack. A clevis is disposed at the lower extremity of the rack for attachment through a pin to the upper end of the gate. A removable pin is employed to secure the gate, in either a raised or a lowered position, to the pedestal and to maintain the gate in position after removal of the operator.
Type:
Grant
Filed:
September 15, 1978
Date of Patent:
November 4, 1980
Assignee:
New Concepts, Inc.
Inventors:
Robert C. Still, Frank J. Huppenthal, Barbara J. Smith, Gerald H. Scotney
Abstract: A replaceable one piece bore and chest liner is enclosed within a pair of mirror image castings to define a gate valve. A cast gate, enveloped within molded material, cooperates with the liner to open and close the gate valve.
Abstract: A gate valve having a replaceable one piece bore and chest liner enclosed within a pair of mirror image castings is disclosed. The gate is cast and enveloped within molded material to cooperate with the liner in a sealing relationship.
Abstract: A selectively biased seal for a gate, which gate is translatable within a one piece liner of a gate valve, is disclosed. Lever means for operating the gate and oriented with or normal to the direction of flow through the gate valve are also described.
Abstract: A gate valve having a replaceable one piece bore and chest liner enclosed within a pair of mirror image castings is disclosed. The gate is cast and enveloped within molded material to cooperate with the liner in a sealing relationship.