Abstract: A handle assembly for an outlet valve for a tank, where the outlet valve has a stem that is actuated to open and close the outlet valve, is provided. The handle assembly includes a handle. A shaft is attached to the handle, and an adapter attached to the shaft. A bracket is adapted to mount the shaft to the tank so that the shaft is pivotally mounted with respect to the tank and movable with respect to the outlet valve between an engaged position, where the adapter is connected to the stem, and a disengaged position, where the adapter is disconnected from the stem.

Abstract: 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.

Abstract: 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.

Abstract: A lockout device for a handle assembly includes first and second lockout members each including an outward facing base wall and outward extending first and second projections. The first and second projections of the first base member are spaced apart to receive the handle therebetween, and the first and second projections of the second base member are spaced apart to receive the handle latch therebetween. The first and second lockout members are pivotable with respect to each other to a lockout position for engagement of the base walls of the first and second lockout members with facing surfaces of a handle and a handle latch of the handle assembly. When the first and second lockout members are secured between the handle and the handle latch in the lockout position, the first and second lockout members block movement of the handle latch to prevent rotational movement of the handle assembly.

Abstract: A lockout device that can be used to lock a valve in a closed position, for use particularly with valves that include a stationary member, such as a body, and a rotating member, such as a handle or wheel, for activating and deactivating the valve is disclosed. The lockout device can also be used to provide a connection point for connecting various types of connectors to a hose clamp or other elongate connecting member mounted on and locked onto a body such as a pipe or valve.

Abstract: An appliance alarm assembly indicates unauthorized use of an appliance. The assembly includes a cover having a first wall and a perimeter wall coupled to and extending from the first wall defining an enclosed interior space. An attachment member is coupled to the cover for coupling the cover to an appliance such that the cover is positioned over a control panel of the appliance. A pressure switch is coupled to the cover and includes a sensor arm extending outwardly from the cover. The pressure switch is tripped by movement of the sensor arm. The pressure switch activates an alarm coupled to the cover upon the pressure switch being tripped by movement of the sensor arm.

Abstract: A yard hydrant locking collar has two C-shaped steel hardened plates connected together at one end by a rivet. The rivet acts like a hinge and allows the top and bottom plates to swivel open and closed. The other end of each top and bottom plates has a locking hole. A one inch tapered slot is cut into the top plate near the locking hole. The top and bottom plates are rotated so the collar fits around the hydrant pipe. The locking holes and slot are positioned near the hydrant locking hole and the collar locking holes are aligned. A padlock is opened and tilted away from the pipe and the free arm of the padlock is placed through the locking hole of the hydrant handle and positioned over the locking holes of the collar. The padlock is then tilted back towards the pipe. The tapered slot allows the padlock to move towards the pipe so that the free end of the padlock can move through the locking holes. Once the free end of the padlock passes through the collar locking holes, the padlock can be raised and locked.

Abstract: A lock-out bracket secures the position of a shaft extending through an actuator, the shaft having a first end and a second end, the first end being operative for controlling a valve, the second end being coupled to a limit switch mounted on a limit switch bracket mounted to the actuator. The lock-out bracket includes a substantially flat base plate and a substantially flat lock-out tab substantially perpendicular to the base plate, the base plate defining an opening configured for matingly fitting over, receiving, and engaging the second end of the shaft. The lock-out tab defines a first hole adapted for alignment with a corresponding second hole defined on the limit switch bracket for facilitating the insertion of a lock shackle through the first hole and the second hole to secure the lock-out bracket relative to the actuator and prevent movement of the shaft and valve coupled to the shaft.

Abstract: The invention relates to a mechanical barrier which prevents tampering with a filler pipe on an underground storage tank for gasoline, fuel, chemicals, or other valuable liquids. The barrier fits within a cylindrical metal liner that surrounds the filler pipe. The barrier includes two spaced posts with semi-circular brackets at their lower ends, for securement about the filler pipe. An annular plate is secured between the upper ends of the post. A lock fits into a cut-out in the plate. A plunger within the lock is extended through an opening at the upper end of one post to maintain the barrier in locked position around the filler pipe, to prevent unauthorized withdrawal of or tampering with the contents of the tank.

Abstract: The current application discloses a locking device for a packing assembly. The device comprises a holding end and a locking end, wherein the holding end is configured to mechanically and/or frictionally engage a fixed component of a packing assembly and the locking end is configured to mechanically and/or frictionally engage at least a portion of the packing nut so as to prevent the packing nut from rotating or otherwise changing its position.

Abstract: A conventional rotary valve in which is provided with a locking mechanism for fixing the degree of aperture so as to prevent misoperation and reduce accidents caused thereby, and even a previously installed valve can be converted to a valve having a locking mechanism, simply by replacing the handle alone. In a rotary valve wherein a valve element that is engaged with a stem is turned by turning the stem, which is connected to a handle, so as to open and close the valve, and having a top flange that is provided on a neck of a valve body that supports the stem, a notch is formed at the peripheral edge of the top flange, and a locking member, having a protrusion that can be latched in the notch in the top flange by way of a torsion spring, is pivotably supported at the center of the handle or on a grip portion thereof.

Abstract: A locking clamp device is provided with first and second clamping members. The first clamping member includes a base member with a first clamping surface and a locking member movable with respect to the base member between a securing position and a releasing position. The second clamping member is slidably engaged with the first clamping member and selectively movable to a plurality of clamping positions. The second clamping member includes a second clamping surface opposite the first clamping surface. The lockout device further includes a means for preventing movement of the locking member from the securing position to the releasing position. The locking member is configured to secure the second clamping member in one of the plurality of clamping positions when the locking member is in the securing position.

Abstract: A hydrant locking device inhibiting unauthorized operation of a fire hydrant and includes a flip-top lid positioning between an open configuration and a closed configuration relative to a base. The flip-top lid is hingedly connected to the base of the locking device. The base may be releasably secured to an operating nut of the fire hydrant or more specifically an operating nut extension that engages the operating nut of the fire hydrant. The flip-top lid may also include a sealed cavity that may include electronics. These electronics may be in electrical communication with a wireless mesh network.

Abstract: A lock assembly including a body portion having a bore configured to receive a lock. The assembly further includes a blade operably connected to the body portion and a head portion removably securable to the body portion. The head portion has a slot configured to receive the blade when assembled and the head portion also has a through bore to allow insertion of the lock such that the lock can lock the head portion and the body portion together during installation. The lock assembly may be used to secure multiple different lockable structures.

Abstract: Manual valve operators having a locking device are described. An example manual operator includes a lever rotatably coupled to a locking plate and has a handle that pivots between a first position to prevent rotation of the lever relative to the locking plate and a second position to enable rotation of the lever relative to the locking plate. A lockout member is removably coupled to the handle. The handle has an aperture to receive at least a portion of the lockout member. The lockout member engages a portion of the lever to prevent the handle from pivoting between the first and second positions to prevent rotation of the lever relative to the locking plate when the lockout member is coupled to the handle.

Abstract: A lockable handle assembly, having an operating handle rotatably mounted on a frame, with a bore therein, having an axis extending laterally, a blocking bolt slideably mounted in the handle, one end of the bolt being slideable into a strike in the frame, a drum rotatably mounted in the bore, with a second end of the bolt in contact with the drum so that rotation of the drum moves the bolt into and out of the strike, a lateral hole through the handle and passing through the bore, the drum having a throughhole therein coaxial with the lateral hole in the handle when the drum is positioned with the bolt in the strike, so that a bar extending through both the throughhole in the drum and the lateral hole in the handle prevents rotation of the drum to maintain the bolt is the strike thereby preventing rotation of the handle.

Abstract: A lock device includes a first bracket 34 fixed to a screw element 33 and formed with a lock hole 34b; a second bracket 35 which has a fitting portion 35a fitted to the turn-type control lever 30 of an operation pattern selecting valve 16 and which is formed with a lock hole 35f; and a lock 36. The screw element 33 is screwed into a threaded hole 32 formed in an end plate 29 of the operation pattern selecting valve 16 to secure the first bracket 34 to the end plate 29. The fitting portion 35a of the second bracket 35 is fitted to the turn-type control lever 30 to connect the second bracket 35 to the turn-type control lever 30. The lock 36 is insertably attached to the respective lock holes 34b and 35f of the first bracket 34 and second bracket 35 for locking the turn-type control lever 30. With such a structure, the lock device can be manufactured relatively easily without the necessity of processing the operation pattern selecting valve.

Abstract: The invention is an easy-to-use one-piece air brake securing device designed for use in recreational vehicles, trucks, and other automotive vehicles employing air-operated parking brakes. The device is designed to fit around the shaft of the air brake plunger and to prevent the plunger from being moved unintentionally or inadvertently in a manner that may disengage the air brake.

Abstract: A cap permanently indicates the occurrence of tampering with a gas service valve. A substantially square base has intersecting slots differently sized to confine correspondingly sized valve cocks against rotational motion. A dome on the base covers the slots and the valve cock. Two ties of adjustable length secure the base against the valve body. The base, dome and ties are of material which is permanently altered by application of force to disorient the mounted cap sufficiently to permit operation of the valve cock. Removal of excess portions of the ties makes reuse difficult, if not impossible. The dome may be transparent so that the orientation of the valve cock can be observed without removing the cap from the valve. Markings on the dome indicate the orientation of the valve cock when the cap was installed.

Abstract: An apparatus is provided for a valve assembly comprising a valve body, a valve element, an actuator housing, an actuator, an unlocked storage opening, a locked storage opening, and a lock. The valve body has an inlet port, an outlet port, and a flow passage therebetween. The valve element is movably disposed within the valve body flow passage. The actuator is disposed within the actuator housing, coupled to the valve element, and operable to move the valve. The unlocked and locked storage openings are formed in the actuator housing. The lock is selectively insertable into, and movable between, the unlocked and locked storage openings. When in the unlocked storage opening, the lock does not engage the actuator, and valve movement is thereby allowed. When in the locked storage opening, the lock engages at least a portion of the actuator, thereby at least inhibiting valve movement.

Abstract: The present invention is an enclosure device for attachment to a fluid withdrawal valve on a chemical storage tank to prevent unauthorized access. The enclosure device comprises a first and second housing pivotally attached with a hinge to pivot between an open and closed position. In addition, the first and second housing define a cavity for receiving the fluid withdrawal valve. In the closed position, a fastener locks the enclosure device to prevent unauthorized access.

Abstract: A locking device for gate valves utilizes an available lock and avoids the necessity of having to chain or weld the lock to the bonnet or other stationary portion of a standard gate valve. The locking device includes a bracket, which mounts securely to one of the truss members of the gate valve. The bracket also includes an upwardly projecting mast, which is inserted between the adjacent spokes of the hand wheel. A cap is seated onto the hand wheel and the mast of the bracket installed on the gate valve. The cap includes a mast port though which the upper end of the mast projects when the cap is seated on the hand wheel. In certain embodiments, the cap covers all of the spokes on the hand wheel and has a number of downwardly projecting spaced spoke detents that are inserted into the openings between the adjacent spokes of the hand wheel. The secure and easy installation of the cap onto the mast of the bracket and the hand wheel prevents rotation of the hand wheel and adjustment of the valve.

Abstract: A lockout assembly suitable for use with a valve having a handle rotatable between an open position and a closed position includes a lock arm which supports a clamping mechanism. In one aspect of the invention, the lock arm includes a longitudinal slot having slot ends. The clamping mechanism is engagable with the handle for clamping thereto and includes a threaded stud extending through the slot. The threaded stud is slidable in the slot between the slot ends. In another aspect of the invention, the clamping mechanism includes a locking knife and body. The body is interposed between the lock arm and locking knife, and includes an opening for slidably receiving the threaded stud therethrough. The locking knife is axially fixed to an end of the threaded stud and is moveable relative to the body for clamping onto the handle interposed between the locking knife and body. The locking knife includes a lower jaw having a distal end and a proximal end.

Abstract: A ready method to disconnect the motive power of an actuator from the input of a valve. A handle is inserted onto the coupling held in the housing, disconnecting the motive power of the actuator and engaging the driven piece connected to the input shaft of the valve. With this handle in place, manual control of the valve is attained and the handle indicates position. The housing can be orientated so that the handle can be inline with the valve action as normally done on manually operated valves. The position of the valve may be fixed by locking the handle to the housing, removing automatic control of the valve. When the handle is removed from the coupling, normal automatic operation is restored. The handle may store at the valve for ready use by maintenance or in a secure location to prevent unauthorized use.

Abstract: An anti-theft device is disclosed for use on a vehicle employing air-operated parking brakes. The device is shaped for disposal about the parking brake control knobs when engaged. The device includes a pair of mating halves formed for surrounding and enclosing the control knobs while in an engaged position. A first of the halves includes a tongue having an opening therein and a second of the halves includes a channel for receiving the tongue. A lock is provided with a locking pin being disposed in the second half wherein the locking pin engages the opening in the tongue in order to secure the first and second halves together. Also, an adjustment mechanism is provided for tailoring the device to minor differences between the brake control knobs from one vehicle to another.

Abstract: A removable retaining bracket that prevents removal of a connection fitting from a gas distribution system component is described. The retaining bracket has a base that defines an opening that accepts the connection fitting and prevents removal of the fitting from the gas distribution component. The retaining bracket extends along the gas distribution system component and defines openings in which a securing component is positioned. The openings are positioned to locate the securing component to prevent removal of the retaining bracket.

Abstract: Disclosed is a gas meter valve for connection to an outlet of a gas meter and a method for its use. The gas meter valve comprises a valve inlet coupleable to the meter outlet, a valve outlet coupleable to piping for supplying gas to a customer and a valve body coupled to the valve inlet and the valve outlet. The valve body includes a chamber for communicating gas from the valve inlet to the valve outlet and a valve assembly disposed in the chamber and adapted to prevent the communication of gas through the chamber when the valve assembly is in a first position and permit the communication of gas through the chamber when the valve assembly is in a second position. The gas meter valve further includes an actuating mechanism coupled to the valve assembly for positioning the valve assembly in the first position and the second position.

Abstract: An anti-theft device is disclosed for use on a vehicle employing air-operated parking brakes. The device is shaped for disposal about the parking brake release valves when engaged. The device includes a pair of mating halves formed for surrounding and enclosing the control valves while in an engaged position. A first of the halves includes a tongue having an opening therein and a second of the halves includes a channel for receiving the tongue. A lock is provided with a locking pin being disposed in the second half wherein the locking pin engages the opening in said tongue in order to secure the first and second halves together. Also, an adjustment mechanism is provided for tailoring the device to minor differences between the release valves from one vehicle to another.

Abstract: A stop apparatus for a gear actuator includes a traveling stop nut that has adjustable positions and travels on a screw on an input shaft. The stop nut is mounted to threadably travel on the stop screw. A stop guide is attached to the stop screw and prevents rotation of the stop screw relative to the gear actuator and permits longitudinal travel of the stop screw during rotation of the input shaft. The stop nut abuts a stop surface upon a predermined amount of rotation of the input shaft to prevent further rotations.

Abstract: A locking device to selectively lock a regulator. The device includes a hollow member, configured to receive a handle of a regulator, where the hollow member is closed on a first end and open on a second end. The second end is configured with at least three tabs extending along a longitudinal axis of the hollow member from the second end toward the first end where any two adjacent tabs define a slot configured to receive a gas line coupled to a regulator. Each tab defines a hole near the second end that is configured for receiving a locking mechanism.

Abstract: A lockout device (20, 120, 220) for locking a valve (22, 122, 222) into its closed position. In a first embodiment, a lockout device (20) is adapted for use with a valve (22) having a lever-type handle (24) and a valve body (28). Accordingly, the first embodiment includes a generally cup-shaped member (36) having an elongate close-ended slot (46) for receiving the lever-type handle. In a second embodiment, a lockout device (120) is adapted for use with a valve (122) that includes a handle (124) having raised indicia (174) on its upper surface (176). Accordingly, the second embodiment includes a generally cup-shaped member (136) that includes an end wall (140) having a recess (182) for receiving the raised indicia only when the valve is in its fully-closed position. A third embodiment of a lockout device (220) comprises a base (272) and a locking member (274) telescopically engaging the base. The locking member may alternately be positioned in a retracted, unlocked position and an extended, locked position.

Abstract: A retrofittable cap locking device for removably fitting over the stem of a fuel tank such that the cap of the stem cannot be removed. The retrofittable cap locking device includes a base portion. The base portion has an opening therein for receiving the stem of a tank designed for holding fuel and oil. The base portion has a peripheral edge. A cover portion comprises a plate having a top side, a bottom side and a peripheral wall extending therebetween. The bottom side has a flange thereon. The flange has a size adapted to fit around the cap of the stem. A first rod has a first end fixedly coupled to the peripheral wall and a second end hingedly coupled to the peripheral edge. The first rod is orientated generally perpendicular to a plane of the plate such that the rod extends away from the bottom side of the plate. A second rod is fixedly coupled to the peripheral wall. The second rod extends in the same direction as, and is orientated generally perpendicular to, the first rod.

Abstract: A valve lock for securing the handle of a pipe. The valve lock includes a first housing having first and second contact points for engaging the pipe and a retention chamber that receives the handle. The first housing is in a final position to prevent rotation of the handle when the retention chamber receives the handle and the first and second contact points are seated against the pipe. A second housing has a third contact point for engaging the pipe and a lock member for disposition relative to the first housing when the first housing is in the final position and the third contact point is seated against the pipe. The lock member receives the shackle of a padlock to secure the lock member to the first housing.

Abstract: A valve lock for securing the handle of a pipe. The valve lock includes a first housing having first and second contact points for engaging the pipe and a retention chamber that receives the handle. The first housing is in a final position to prevent rotation of the handle when the retention chamber receives the handle and the first and second contact points are seated against the pipe. A second housing has a third contact point for engaging the pipe and a lock member for disposition relative to the first housing when the first housing is in the final position and the third contact point is seated against the pipe. The lock member receives the shackle of a padlock to secure the lock member to the first housing.

Abstract: A security lock assembly for a shut-off valve consisting of a valve body and an exterior engageable portion secured to a gate stem so as to rotate the stem. The body has a flange with a hole therein. The security lock assembly comprises a lock disk having a central opening for receiving the engageable portion. Abutment edges are formed integrally with the disk for engagement with the engageable portion so as to rotate therewith. Indentations are formed in a bottom surface of the lock disk at a predetermined position. A pin-lock assembly is retained in the hole of the flange of the valve body. The pin-lock assembly has a pin portion upwardly biased against the lock disk. The pin portion is aligned with the indentation so as to engage therein when the valve stem is rotated to a predetermined closed position, whereby the valve is locked in the predetermined closed position by the pin portion.

Abstract: A method and apparatus for locking a water main valve having a handle attached to a valve stem against unauthorized usage includes a method of selecting the apparatus which has a locking cover having a sidewall sized to enclose a portion of a water main valve which has an open bottom and a partially covered top and a first elongated locking arm extending therefrom. The selected apparatus also includes a second elongated locking arm having two ends and having a generally perpendicular yoke extending from one end thereof and having an opening in the other end thereof. The second elongated locking arm yoke is sized to fit under the water main valve handle over the water main valve stem.

Abstract: A system for locking a chain-operated valve to prevent unauthorized and inadvertent operation of the valve. The system includes an elongated tube for receiving both lengths of a chain encircling the valve and a locking arrangement positioned at one end of the tube. Both lengths of the chain extending from the valve enter one end of the tube and exit the opposite end of the tube adjacent the lock arrangement. The lock arrangement includes a bracket secured to the tube and extending outwardly from the tube. The bracket preferably includes apertures for receiving a lockout hasp extending through the chain links and the bracket. A conventional padlock or other security locking device may then extend through the hasp to prevent opening of the hasp.

Abstract: A locking device for preventing movement of the operating handle of a valve comprising a U-shaped rod member engageable with a portion of the valve and having a curved proximal portion from which extends parallel portions for disposition on opposite sides of the valve handle to prevent movement thereof. First and second pivotally connected elongated arm members are positionable on opposite sides of the U-shaped member so that when they are brought together the U-shaped rod member is confined thereby to prevent said movement of said valve handle.

Abstract: A locking device for preventing movement of the operating handle of a valve comprising a U-shaped rod member engageable with a portion of the valve and having a curved proximal portion from which extends parallel portions for disposition on opposite sides of the valve handle to prevent movement thereof. First and second pivotally connected elongated arm members are positionable on opposite sides of the U-shaped member so that when they are brought together the U-shaped rod member is confined thereby to prevent said movement of said valve handle.

Abstract: A security lock assembly for a shut-off valve consisting of a valve body and an exterior engageable portion secured to a gate stem so as to rotate the stem. The body has a flange with a hole therein. The security lock assembly comprises a lock disk having a central opening for receiving the engageable portion. Abutment edges are formed integrally with the disk for engagement with the engageable portion so as to rotate therewith. Indentations are formed in a bottom surface of the lock disk at a predetermined position. A pin-lock assembly is retained in the hole of the flange of the valve body. The pin-lock assembly has a pin portion upwardly biased against the lock disk. The pin portion is aligned with the indentation so as to engage therein when the valve stem is rotated to a predetermined closed position, whereby the valve is locked in the predetermined closed position by the pin portion.

Abstract: A system for locking a chain-operated valve to prevent unauthorized and inadvertent operation of the valve. The system is specifically advantageous for use with valves which cannot be easily accessed, i.e. in an overhead space, and therefore are operated by an elongated chain encircling a valve handle to permit remote operation by pulling the chain to rotate the valve in the appropriate direction for opening or closing. The system includes an elongated tube for receiving both lengths of a chain encircling the valve and a locking arrangement positioned at one end of the tube. Both lengths of the chain extending from the valve enter one end of the tube and exit the opposite end of the tube adjacent the lock arrangement. The lock arrangement includes a bracket secured to the tube and extending outwardly from the tube. The bracket preferably includes apertures for receiving a lockout hasp extending through the chain links and the bracket.

Abstract: A lockout device is designed for use with a valve having a pair of spaced apart, generally opposed abutment surfaces, with at least one of the abutment surfaces being shiftable relative to the other in such manner that the spacing between the surfaces decreases when the valve is actuated from a select condition. The lockout device includes a pair of generally oppositely facing engagement faces positionable between the abutment surfaces, and the device is adjustable so that the user may vary the distance between the engagement faces. In this respect, the lockout device may be disposed between the abutment surfaces and the engagement faces may be brought into secure, positive engagement with the abutment surfaces when the valve is in the select condition. This will prevent movement of the at least one abutment surface toward the other, and thereby prevent actuation of the valve.

Abstract: A lock apparatus for a valve that has a valve body and an actuator stem protruding therefrom for selectively rotating a flow control member within the valve body between open and closed positions and a handle attached to the valve stem that defines a first axis. The lock apparatus includes a slider plate that is movably supported on the valve stem and is selectively slidable along a second axis that is substantially transverse to the first axis to a position wherein said slider plate contacts a portion of the valve body when the flow control member is in either of the open and closed positions to retain the flow control member therein and another position wherein the slider plate does not contact the portion of the valve body to permit the valve stem to be rotated. An opening is provided through the slider plate for receiving a portion of a locking device therethrough.

Abstract: A locking apparatus which is suitable for use with a manually operated control. The control is of a type which has a body and a handle. The handle is rotatable relative to the body and which is restricted to rotate between a first position defined by a first pair of abutment surfaces touching one another. In such a condition, a second pair of abutment surfaces are spaced apart to define a first gap between them. Rotation to a second limiting position is defined by the second pair of abutment surfaces touching one another and the first pair of abutment surfaces being spaced apart to define a second gap. The locking apparatus includes a first member which is attachable to the handle and a second member which is attached to the first member. The second member fits for use into either one of the first or second gap and provides further abutment surfaces each disposed to abut a respective adjacent abutment surface on the body of the control thereby to restrict rotation of the handle relative to the body.

Abstract: A lockout device is designed for use with a valve having a pair of spaced apart, generally opposed abutment surfaces, with at least one of the abutment surfaces being shiftable relative to the other in such manner that the spacing between the surfaces decreases when the valve is actuated from a select condition. The lockout device includes a pair of generally oppositely facing engagement faces positionable between the abutment surfaces, and the device is adjustable so that the user may vary the distance between the engagement faces. In this respect, the lockout device may be disposed between the abutment surfaces and the engagement faces may be brought into secure, positive engagement with the abutment surfaces when the valve is in the select condition. This will prevent movement of the at least one abutment surface toward the other, and thereby prevent actuation of the valve.

Abstract: An anti-theft device for use with a dashboard mounted control of the type typically found in trucks having an axially moving shaft with a hand-grip knob is provided. The anti-theft device includes a locking pin provided through an aperture of the shaft. The anti-theft device also includes a locking device having a base and a shackle portion. The shackle portion is at least partially removably coupled to the base portion. The base has a first coupling device adapted to receive a first end of the locking pin. The shackle includes a second coupling device adapted to receive the second end of the locking pin. When the first end of the locking pin is received in the first coupling device and the second end of the locking pin is received in the second coupling device, and when the shackle portion is coupled to the base portion, the locking means substantially prevents inward axial movement of the shaft.

Abstract: A locking device for a valve having a rotatable shaft including a stop plate, and a stop secured to a housing, including a hollow body having a first chamber for receiving the shaft, a threaded aperture extending into the first chamber for receiving a screw, a second chamber surrounding the screw, a lockable closure preventing access to the screw, and a tab coupled to the hollow body adapted to be received between the stop plate and the stop.

Abstract: An apparatus is adapted to prevent the theft of a wheeled vehicle having air brakes (e.g., large trucks and buses). A brake valve is selectively actuated by linear movement of an exposed knob that is located adjacent a supporting structure in the cab, and a valve housing is mounted behind the supporting structure. A new structural base is permanently connected to the valve housing in an exposed position in the vehicle's cab. The base is normally accessible to the driver at all times, but it is thin enough so that it will not interfere with normal push/pull movement of the valve's knob. A rigid and generally hollow cover is adapted to be selectively suspended over and in contact with the structural base. The cover is sufficiently deep as to envelop the valve's knob in order to conceal it and render it inaccessible when the cover is suspended over the base. The cover is selectively removable from the base so as to permit the driver to remove the cover and thereby have access to the knob.

Abstract: An improved spring-loaded latching and locking mechanism for a rotatable control of the type having a stem journaled in a body and rotatable about an axis in a boss on the body. The stem has a protuberance for engagement with the handle. The handle comprises a boss-engaging end portion, a stem-engaging portion, a slider-riding portion, and a grip end portion. The slider-riding portion has a slider with a tang extending therefrom. Each side of the slider-riding portion also includes a pair of springs mounted on a rail cutout so that the springs provide resistance against movement of the slider. The slider-riding portion includes an aperture for securing a lock to arrest movement of the slider. The boss has surfaces located to correspond to predetermined positions of the stem. These surfaces are engageable by the tang which, when so engaged, restrains the handle from rotation and prevents removal of the handle from the stem.

Abstract: The invention is directed to a method and an anti-theft device for a personal watercraft which is powered by a gasoline engine-driven jet pump. The anti-theft device, having a nozzle cover, a cover holding mender and a cover locking member, is designed to be sealably attached to a jet pump steering diverter nozzle in order to prevent and deter theft of such a watercraft. The jet pump steering diverter nozzle, having an entrance and an exit end, is locked by mounting the nozzle cover to the exit end of the jet steering diverter nozzle, the nozzle cover is engaged in tight contact with the jet steering diverter nozzle with the cover holding member, whereby preventing movement of the nozzle cover in order to restrict the flow of water passing through the jet steering diverter nozzle, and the nozzle cover is locked to the jet steering diverted nozzle in order to prevent unauthorized removal thereof.