Improvements in a one-way valve cap to allow a homeowner to install the cap without requiring tools. This allows a homeowner to simply remove the existing cap and install the new cap to prevent removal from an unauthorized person. The one-way locking mechanism includes a ramp that prevents a person from unscrewing to cap without a tool. The opening allows a person to insert the tool through the outer housing and into the inner housing to unscrew the inner housing from the valve. A hex key or a custom key design can be used for removing the cap. A seal is inserted in the inner housing and seals the inner housing with the valve. The elastomeric seal prevents intrusion of contamination inside of the valve and also provides an additional seal to the valve to reduce a potential leak of gas from the line.

A valve system includes a spring-biased locking slide plate which extends in an axial direction parallel to and offset from the axis of the valve stem and selectively extends through a base plate mounted to the top of a valve to selectively engage stop tabs on the valve body. The locking slide plate also extends through the valve handle and through a locking member to selectively lock the valve in open or closed positions. In one embodiment, the locking slide plate comprises two sections which include a lower section having tines which selectively engage tabs on the valve body and a second upper section which is spring-biased to the lower section to float to allow the lower section to accommodate different diameter valve bodies.

In one embodiment, a non-transitory computer readable medium may include computer-executable instructions that, when executed by a processor, may receive a first set of data associated with a user, receive a second set of data associated with one or more lockout procedures performed by the user, receive a request to actuate a locking mechanism of an electronic lock configured to prevent a machine in an industrial automation application from being operational, and send a signal to the electronic lock to actuate the locking mechanism when the second set of data indicates that the lockout procedures have been performed by the user and the data corresponds to an authorized user.

In one embodiment, a non-transitory computer readable medium may include computer-executable instructions that, when executed by a processor, may receive a first set of data associated with a user, receive a second set of data associated with one or more lockout procedures performed by the user, receive a request to actuate a locking mechanism of an electronic lock configured to prevent a machine in an industrial automation application from being operational, and send a signal to the electronic lock to actuate the locking mechanism when the second set of data indicates that the lockout procedures have been performed by the user and the data corresponds to an authorized user.

A valve anti-theft system, for use in conjunction with valves mounted to a side arm extending from a standpipe. The system includes a plate configured for mounting to a valve located surrounding the shaft of a valve control ring and against a surface of the valve and one or more rods extending from the plate and configured to extend toward the standpipe alongside the valve. The system further includes a mounting mechanism for securing the elongated members to the standpipe or side arm. The mounting means includes a flange configured to extend from the standpipe or side arm, generally perpendicular the axis of the side arm and having a hole through which an end of a said rod passes, the end of said rod being threaded and fastenable to the flange by means of an associated nut.

A switchbox for monitoring the position of a manual quarter-turn valve has a housing mountable to the valve to be monitored/controlled. A handle-driven shaft extends through the housing, with one end of the shaft couplable to the valve stem such that movement of the shaft moves the valve stem. One or more shaft position sensor switches interact with a cam on the shaft to signal shaft position and/or provide control signals. A plate coupled to the shaft articulates within a recess on the surface of the switchbox to limit motion of the valve to an operable range, such as between full ON and full OFF. The switchbox has a pair of lock tabs with lock apertures. A lock aperture in the plate is alignable with the lock tab apertures to receive a pin or padlock for locking the valve in a selected position. A potentiometer can be utilized in place of a switch as a shaft position sensor. The switchbox may be used with an original or new handle and may feature detents to allow a range of valve settings.

A switchbox for monitoring the position of a manual quarter-turn valve has a housing mountable to the valve to be monitored/controlled. A handle-driven shaft extends through the housing, with one end of the shaft couplable to the valve stem such that movement of the shaft moves the valve stem. One or more shaft position sensor switches interact with a cam on the shaft to signal shaft position and/or provide control signals. A plate coupled to the shaft articulates within a recess on the surface of the switchbox to limit motion of the valve to an operable range, such as between full ON and full OFF. The switchbox has a pair of lock tabs with lock apertures. A lock aperture in the plate is alignable with the lock tab apertures to receive a pin or padlock for locking the valve in a selected position. A potentiometer can be utilized in place of a switch as a shaft position sensor. The switchbox may be used with an original or new handle and may feature detents to allow a range of valve settings.

A device for transmitting movement between a first rotating and driving toothed element and a second rotating and driven toothed element, the transmitting of movement being limited to a range of rotation that is delimited by starting and ending rotational angular positions of ranges of movement for the toothed elements. The second toothed element has a spring element pulling it in rotation in a direction opposite to the positive direction of rotation bringing the second toothed element from its beginning angular position of operational range of movement to its ending angular position of operational range of movement, and the first toothed element has a particular peripheral arc portion that is devoid of teeth, this particular peripheral arc portion extending circumferentially beyond the end or the last tooth of the toothed peripheral arc portion of the first element, seen in the positive direction of rotation of the latter.

A device for transmitting movement between a first rotating and driving toothed element and a second rotating and driven toothed element, the transmitting of movement being limited to a range of rotation that is delimited by starting and ending rotational angular positions of ranges of movement for the toothed elements. The second toothed element has a spring element pulling it in rotation in a direction opposite to the positive direction of rotation bringing the second toothed element from its beginning angular position of operational range of movement to its ending angular position of operational range of movement, and the first toothed element has a particular peripheral arc portion that is devoid of teeth, this particular peripheral arc portion extending circumferentially beyond the end or the last tooth of the toothed peripheral arc portion of the first element, seen in the positive direction of rotation of the latter.

A flow rate control device includes a needle valve mounted within a body section and is configured such that the needle valve is advanced and retracted within the body section by the rotation of a handle, thereby adjusting the flow rate of fluid flowing between a first port and a second port. The handle is surrounded by a cover to prevent a change in the adjusted flow rate.