초록 ▼

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 l

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.

대표청구항 ▼

A lock comprising, in combination: a) a bracket, said bracket comprising an integral member comprising two planar wings of unequal heights and a planar central spacer therebetween; b) each of said wings having at least one transversely elongated aperture; c) a lock of the type that includes a lock b

A lock comprising, in combination: a) a bracket, said bracket comprising an integral member comprising two planar wings of unequal heights and a planar central spacer therebetween; b) each of said wings having at least one transversely elongated aperture; c) a lock of the type that includes a lock body and a shackle; d) one aperture of each wing being mutually aligned to receive said shackle; and e) the longer of said wings has an aperture within the region exceeding the height of the other wing for engaging a valve.