Right-angle valve closure system

Details Right-angle valve closure system Right-angle valve closure system

2005-01-11

2005-01-11

Look, Edward K. (Department: 3754)

Valves and valve actuation

Mechanical movement actuator

Gear

C251S248000

Reexamination Certificate

active

06840503

ABSTRACT:
An air motor (34) is arranged at a right angle to the valve stem (54), through a right angle gear drive (36) that provides torque amplification. A bracket (40) associates the motor with the valve body (48), having a flat ring (68) that fits over the valve body and has clearance notches (94) providing circumferential indexing. Semi-circular locking plates (66) are axially adjacent the ring and pivoted for swinging between a locking position where they fit in a groove (59) in the valve body and an unlocking position where they are free of the groove. Each locking plate has several through-holes through any of which a locking pin (42) can pass to lock the locking plate in locking position. Each locking pin protrudes axially beyond the ring to present interference with the valve body preventing the bracket from turning when the motor operates.

REFERENCES:
patent: 4519639 (1985-05-01), Florian
patent: 4637423 (1987-01-01), Gray
patent: 4776363 (1988-10-01), Avelli
patent: 4901977 (1990-02-01), Hendrick
patent: 6105595 (2000-08-01), Jensen

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