Spring loaded locking handle for angle cock or the like

Details Spring loaded locking handle for angle cock or the like Spring loaded locking handle for angle cock or the like

1991-04-12

1991-12-17

Walton, George L.

Valves and valve actuation

With means for blocking or disabling actuator

Released by non-valving actuator motion

16112, 16DIG36, 74523, 74526, 74543, 251243, 251288, 267155, F16K 3502

Patent

active

050729136

ABSTRACT:
A spring loaded locking handle assembly for an angle cock or the like wherein the helical windings of a torsion type spring are mounted on a fulcrum pin about which the handle proper of a two-piece, locking style handle assembly is pivotally connected to the handle socket. One leg of the torsion spring is fixed to the socket via a pilot hole therein and an aligned index hole in the fulcrum pin to properly locate and secure the fulcrum pin in place. The other leg of the torsion spring bears against the handle proper under tension to positively maintain the handle member in its locked position and to prevent accidental operation of the angle cock.

REFERENCES:
patent: 952121 (1910-03-01), Koehler
patent: 952743 (1910-03-01), Jenkins
patent: 979344 (1910-12-01), Shallow
patent: 1035490 (1912-08-01), Stott et al.
patent: 2065750 (1936-12-01), Safford
patent: 2147287 (1939-02-01), Farmer
patent: 4456219 (1984-06-01), Scott et al.
patent: 4909275 (1990-03-01), Massey et al.

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