Valves and valve actuation – With means for blocking or disabling actuator – Released by non-valving actuator motion
Patent
1997-04-14
1998-06-30
Ferensic, Denise L.
Valves and valve actuation
With means for blocking or disabling actuator
Released by non-valving actuator motion
251104, 251110, F16K 3500
Patent
active
057721777
ABSTRACT:
An improved latch mechanism for a fluid flow control valve. The latch mechanism having a latch body, a spring, a plunger and a thumb release lever for disengagement of the plunger. The latch mechanism is attached to a valve handle which controls the fluid flow rate through the valve. Provided with the latch, the handle and thereby the valve can be locked into either a closed or open position at the limits of the valves' necessary rotation thereby preventing inadvertent opening or closing of the valve. The thumb release lever disengages the plunger with detent notches provided in the valve body allowing safe and efficient single handed operation of the handle and latch mechanism even under adverse environmental conditions when operator dexterity is impaired by gloves.
REFERENCES:
patent: 766324 (1904-08-01), Faucet
patent: 934099 (1909-09-01), Sheafe
patent: 2239831 (1941-04-01), Sadvary
patent: 3648970 (1972-03-01), Hartmann et al.
patent: 3679170 (1972-07-01), Bernas et al.
patent: 4078763 (1978-03-01), Yamamoto
patent: 4909275 (1990-03-01), Massey et al.
patent: 5188335 (1993-02-01), Pettinaroli
patent: 5285997 (1994-02-01), Chang
patent: 5647389 (1997-07-01), Holloway
Holloway David G.
Madden Kenneth
Massey Roger
Ferensic Denise L.
Kim Joanne Y.
Parker & Harper Companies, Inc.
LandOfFree
Valve latching device for single handed operation 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 latching device for single handed operation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve latching device for single handed operation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1851284