Fluid handling – With lock or seal
Patent
1995-12-13
1997-04-15
Chambers, A. Michael
Fluid handling
With lock or seal
137 38, 137 39, 70180, 251292, F16K 1736
Patent
active
056200226
ABSTRACT:
A seismic gas shut-off valve includes a lock to control resetting after a seismic event. The valve includes internal first and second seats for a ball vale in which the first seat is elevated above the second seat and the second seat lies within the flow of gas from a supply line to a distribution line. A horizontal shaft is extendible within the valve body to reposition the ball valve from the lower second seat to the upper first seat after valve actuation. A lock comprising an integral three-sided bracket and padlock is selectively engaged to the reset shaft to prevent premature and unsafe resetting or "opening" of the valve after an earthquake. In an alternative embodiment, the bracket includes an elongated wing element that includes an aperture. The alternative embodiment is suitable for use as a wrench to operate the main gas shut-off of a residence or other building.
REFERENCES:
patent: D248613 (1978-07-01), Pace et al.
patent: D267392 (1982-12-01), Hildebrant
patent: D268086 (1983-03-01), Waters, Jr.
patent: D268087 (1983-03-01), Truefitt
patent: D282046 (1986-01-01), Dumond et al.
patent: D300000 (1989-02-01), Reinhardt
patent: D301010 (1989-05-01), Renna
patent: D333243 (1993-02-01), Brown
patent: D344437 (1994-02-01), Cleland et al.
patent: D353755 (1994-12-01), Lane
patent: 1432621 (1922-10-01), Rath
patent: 3747616 (1973-07-01), Lloyd
patent: 4331171 (1982-05-01), Novi
patent: 4485832 (1984-12-01), Plemmons et al.
patent: 4715394 (1987-12-01), O'Donnell et al.
patent: 4799505 (1989-01-01), Nowell
patent: 4889150 (1989-12-01), Lloyd et al.
patent: 4959980 (1990-10-01), Phillips
patent: 5074327 (1991-12-01), Reid
patent: 5139041 (1992-08-01), Albrecht
patent: 5143110 (1992-09-01), Simpson
patent: 5143114 (1992-09-01), Doniels
patent: 5165263 (1992-11-01), Perron et al.
patent: 5190070 (1993-03-01), Robinson
patent: 5199286 (1993-04-01), Jakubas
patent: 5209252 (1993-05-01), Perle
patent: 5234029 (1993-08-01), Thomas et al.
patent: 5299597 (1994-04-01), Fort et al.
patent: 5353833 (1994-10-01), Martinez
patent: 5360036 (1994-11-01), Kieper
patent: 5365759 (1994-11-01), Bonomi
patent: 5415017 (1995-05-01), Benda et al.
patent: 5427135 (1995-06-01), Kieper
patent: 5456278 (1995-10-01), Morris et al.
Chambers A. Michael
Khachig Evan Manoogian
Kramsky Elliott N.
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