Valves and valve actuation – With means for blocking or disabling actuator – Released by non-valving actuator motion
Patent
1990-08-15
1991-07-09
Walton, George L.
Valves and valve actuation
With means for blocking or disabling actuator
Released by non-valving actuator motion
251208, 251292, 251305, 411403, 411910, F16K 3506
Patent
active
050298089
ABSTRACT:
A locking construction for addition to an existing valve having a valve body, a flange on the valve body, a valve member in the valve body, a valve stem coupled to the valve member and extending through the flange for moving the valve member between various positions, the locking construction including a locking plate securely locked to the flange by bolts which can be removed only with a specialized kay, a plurality of tapped bores in the locking plate, an operating plate slidably mounted on the locking plate and keyed to the valve stem, bores in the operating plate for alignment with the tapped bores in the locking plate, and locking bolts extending through the bores in the operating plate and received in the tapped bores in the locking plate for locking the valve stem in position, the last-mentioned locking bolts capable of being manipulated only by a specialized key.
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Gastel Joseph P.
McGard, Inc.
Walton George L.
LandOfFree
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