Valves and valve actuation – With means for blocking or disabling actuator – Released by non-valving actuator motion
Patent
1996-09-09
1997-09-30
Walton, George L.
Valves and valve actuation
With means for blocking or disabling actuator
Released by non-valving actuator motion
16121, 74 25, 74548, 74553, 74554, 192 697, 192 699, 192 95, 251 77, 251100, 251229, 403359, F16K 3502
Patent
active
056719043
ABSTRACT:
A valve safety handle having a handle slidably attached to a valve stem. The handle incorporates a handle female spline sized to engage a valve stem male spline. The handle female spline is urged out of engagement with the valve stem male spline by means of a spring trapped between the handle and valve stem. The valve stem also has a valve stem key sized to slide into a handle lower recess keyway. Thus the handle may engage with the valve stem only after the handle has been rotated relative to the valve stem until the valve stem key aligns with the handle lower recess keyway, and the handle has then been translated relative to the valve stem against the spring until the handle female spline is engaged with the valve stem male spline. An alternate embodiment incorporates an adapter having an adapter female spline sized to engage a standard plumbing valve stem male spline. The adapter also incorporates an adapter male spline sized to engage the handle female spline, and an adapter key sized to fit into the handle lower recess keyway.
REFERENCES:
patent: 965095 (1910-07-01), Filson
patent: 1801175 (1931-04-01), Possons
patent: 2064623 (1936-12-01), Mueller
patent: 2089617 (1937-08-01), Mueller
patent: 2194714 (1940-03-01), Mueller
patent: 2236109 (1941-03-01), Mueller
patent: 2829538 (1958-04-01), Mueller
patent: 3210040 (1965-10-01), Thurlow
patent: 4480784 (1984-11-01), Bennett
patent: 4549716 (1985-10-01), Warren
patent: 5152314 (1992-10-01), Yandle, III
patent: 5217201 (1993-06-01), Self
patent: 5263853 (1993-11-01), Pall
patent: 5449144 (1995-09-01), Kowalics
patent: 5513831 (1996-05-01), Seward
patent: 5551124 (1996-09-01), Zeringue
Rooy Paul S.
Walton George L.
LandOfFree
Valve safety handle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Valve safety handle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve safety handle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2252061