Locking device for gas regulator and control apparatus

Details Locking device for gas regulator and control apparatus Locking device for gas regulator and control apparatus

1990-07-02

1991-06-25

Walton, George L.

Valves and valve actuation

Mechanical movement actuator

Ratchet

74 25, 74548, 74575, 137315, 13750525, 192 67R, 192 95, 251229, 403 1, F16K 3144, F16K 3500

Patent

active

050260260

ABSTRACT:
A locking device for use with a gas flow distribution device to be connected to a source of gas under pressure. The device has a yoke for securement to the source and a fastening screw threaded in the yoke for securing the device to the gas source. The locking screw has a tee-shaped handle. The locking device has a collar including a sleeve defining opposed openings for engagement of the yoke to permit longitudinal movement relative to the yoke but substantially prevents rotation of the sleeve relative to the yoke. The collar has a yoke-remote portion including a plurality of handle-engaging recesses. A spring biases the collar outwardly from the yoke into locking engagement with the handle for preventing unintended unfastening of the screw.

REFERENCES:
patent: 1250237 (1917-12-01), Snyder et al.
patent: 2780333 (1957-02-01), Reiser et al.
patent: 2797592 (1957-07-01), Marrapese
patent: 2899841 (1959-08-01), Melloy
patent: 3035605 (1962-05-01), Ninnelt
patent: 3193243 (1965-07-01), Billington et al.
patent: 3298661 (1967-01-01), Stam
patent: 3426790 (1969-02-01), Dey
patent: 3698425 (1972-10-01), Fisher
patent: 4221238 (1980-09-01), Madsen
patent: 4655246 (1987-04-01), Phlipot et al.

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