A gas fixture safety cover comprising: a first wall; a second wall attached to the first wall, the second wall is generally perpendicular to the first wall; a third wall attached to the second wall and generally perpendicular to the second wall; a fourth wall attached to the third wall and first wall, the fourth wall generally perpendicular to the third wall and first wall; a first nozzle vertical slot in the first wall and extending to the bottom of the first wall; a second nozzle vertical slot in the second wall and extending to the bottom of the second wall and where the height of the first handle vertical slot is higher than the height of the first nozzle vertical slot; where when the gas fixture safety cover can only slide down over a two nozzle and two handle gas fixture when the two handles are both turned off; where when the gas fixture safety cover has slid onto a gas fixture when the gas valve handle is turned off, the gas fixture safety cover abuts a counter top, and where when the gas fixture safety cover has slid onto a gas fixture when the gas valve handle is turned on, the gas fixture safety cover does not abut a counter top.

A gas off security device for a gas range, which includes a cross bar sized to span a control width of the gas range, is connected to the gas range via a left mount and a right mount. Each of a plurality of knob locks are slidably mounted on the cross bar and are used to define a slot sized to receive a handle portion of one gas control knob. The knob locks can be adjusted for different gas ranges via set screws that allow the knob lock to be set at a selected location along the length of the cross bar. The gas control knob is blocked from being turned from an off position to an on position when the cross bar is mounted to the gas range and the handle portion of the control knob is received in the slot of one of the knob locks.

A gas off security device for a gas range, which includes a cross bar sized to span a control width of the gas range, is connected to the gas range via a left mount and a right mount. Each of a plurality of knob locks are slidably mounted on the cross bar and are used to define a slot sized to receive a handle portion of one gas control knob. The knob locks can be adjusted for different gas ranges via set screws that allow the knob lock to be set at a selected location along the length of the cross bar. The gas control knob is blocked from being turned from an off position to an on position when the cross bar is mounted to the gas range and the handle portion of the control knob is received in the slot of one of the knob locks.

The present invention provides a mechanical interlocked manifold for controlling a process medium flow between a fluid- or gas-system and, e.g., a sensor, as well as a method for calibrating, testing, replacing or repairing a measuring device interconnected to such a mechanical interlocked manifold.

The present invention provides a mechanical interlocked manifold for controlling a process medium flow between a fluid- or gas-system and, e.g., a sensor, as well as a method for calibrating, testing, replacing or repairing a measuring device interconnected to such a mechanical interlocked manifold.

A multiple valve control assembly is described. The multiple valve control assembly includes a first cam/lever assembly to close a first valve, and a second cam/lever assembly to close a second valve. A first locking surface of the first cam/lever assembly, when the first cam/lever assembly is in the open position, physically blocks the rotation of the second cam/lever assembly. This provides for a pressure line to be closed by the first cam/lever assembly before the tank line can be closed by the second cam/lever assembly.

A multiple valve control assembly is described. The multiple valve control assembly includes a first cam/lever assembly to close a first valve, and a second cam/lever assembly to close a second valve. A first locking surface of the first cam/lever assembly, when the first cam/lever assembly is in the open position, physically blocks the rotation of the second cam/lever assembly. This provides for a pressure line to be closed by the first cam/lever assembly before the tank line can be closed by the second cam/lever assembly.

In order to simplify the operation of a valve assembly (2) which includes a plurality of valves (3) that have respective activating elements (8) which serve for in each case manually opening the valves (3), the activating elements are temporarily blocked with the aid of at least one shut-off part (6) so that an activation of at least one of the other valves (3) of the valve assembly (2) is currently precluded.

In order to simplify the operation of a valve assembly (2) which includes a plurality of valves (3) that have respective activating elements (8) which serve for in each case manually opening the valves (3), the activating elements are temporarily blocked with the aid of at least one shut-off part (6) so that an activation of at least one of the other valves (3) of the valve assembly (2) is currently precluded.

A switching valve includes a base including a bottom wall and a side wall that extends from the bottom wall of the base along a circumferential direction of the bottom wall, a body that can couple to the base to define a cavity between a bottom plate of the body and the bottom wall and the side wall of the base, in which the bottom plate includes two through holes that are each fluidly coupled to the cavity, two sliders disposed within the cavity, and two driving rods each movably coupled to one of the two through holes of the body, in which each driving rod can move relative to the two through holes to block or unblock each respective through hole. Each slider can slide responsive to movement of one of the two driving rods such that only one through hole is unblocked at one time.