Abstract: An apparatus for locking the position of the rotary valve, wherein the valve has a valve shaft adapted to have first and second opposed flatted formations. The apparatus includes first and second cam followers. The cam followers are reciprocally movable via the action of a cam assembly comprising first and second cams mounted on a rotatable cam stem. The cam followers can be simultaneously moved in opposite directions whereby engagement walls in the first and second cam followers can engage the first and second opposed flatted formations simultaneously.

Abstract: A flow rate adjusting device of the present invention includes a flow channel member and a valve mechanism. The valve mechanism includes a rod, a knob and a lock mechanism. The lock mechanism is switched by the knob moving in the traverse direction between a prohibited state in which the engaging portion is engaged with the to-be-engaged portion so that the rotation of the rod relative to the flow channel member is prohibited via the knob and a permitted state in which the engagement between the engaging portion and the to-be-engaged portion is undone so that the rod is permitted to rotate relative to the flow channel member.

Abstract: A security blow-out-proof valve assembly is provided that includes a valve body, valve stem, and a head. The valve body contains a valve member movable between open and closed positions within the valve body. The valve stem extends from the valve body and moves the valve member between open and closed positions within the valve body. The head located on the valve stem is selectively movable relative to the valve stem and selectively moves the valve stem. When the head selectively moves the valve stem the head moves the valve member between open and closed positions.

Abstract: A valve assembly for dispensing a confectionary product has an inlet (70), a first outlet (72), and a second outlet (90). The assembly has a valve member (80) shiftable between: a first condition providing communication between the inlet and the first outlet; and a second condition providing communication between the inlet and the second outlet.

Abstract: The present invention relates to a valve used to control fluid flow. The valve includes a handle, which is placed above a body and is connected directly or indirectly to a top portion of a stem; a cap, into which the stem is inserted, and which surrounds a top portion of the body, the cap having a plurality of locking holes formed in the circumference of a top portion thereof in a circular arrangement. The handle has a vertical hole corresponding to the locking holes and a key hole extending coaxially with or perpendicularly to the vertical hole, and is connected to the top portion of the stem to contact the top portion of the cap. Locking means is provided in the vertical hole and the locking holes to lock the handle and the cap to each other. The locked position is released using a master key, which is inserted through the key hole, thereby allowing the handle to be operated.

Abstract: A valve which is controlled using a master key such that only an authorized person is able to turn the valve on and off. The valve is constructed such that a fluid passage is controlled by rotating a handle relative to a body, including a locking device for maintaining a locked state of the handle relative to the body. A master key slot, which extends to the locking device, is formed in the handle, so that, when the master key is inserted into the master key slot, the locked state of the handle is released such that the fluid passage can be controlled by the rotation of the handle.

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 security device for engaging a threaded element includes an inner body configured to engage the threaded element and an outer body operatively coupled to the inner body. A pin is operatively coupled to the inner body and movable between an extended position and a retracted position such that the outer body moves relative to the inner body when the pin is disposed in the retracted position and the outer body and the inner body are operatively coupled for simultaneous movement when the pin is disposed in the extended position.

Abstract: A security device for engaging an threaded element includes an inner body configured to engage the threaded element and an outer body operatively coupled to the inner body. A lock is configured to engage the outer body and is operable such that the outer body moves with the inner body when the lock is in an extended configuration and freely rotates relative to the inner body when the lock is in a retracted configuration.

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: A fire hydrant securing arrangement utilizes a magnetic detent to couple an outer body to a center post so that when a wrench with a permanent magnet is mated with the outer body, the magnetic detent connects the outer body to the center post. The center post has an end with a polygonal recess which complements the shape of the hydrant operating nut. The recess is within an insert that has a polygonal periphery engaged by a polygonal inner wall of the center post. The insert is interchangeable with other inserts having recesses of different sizes and configurations so that the securing arrangement is readily acceptable to fire hydrants having different operating nuts of different sizes.

Abstract: An anti-theft device for preventing unauthorized release of the air brakes on a vehicle includes a lockable button for the valve stem for the control valve. The lockable button includes a button body, a coupling member, and a lock assembly having a latch member that selectively inserts into an annular groove on the coupling member. The coupling member is secured to move axially with the axially movable valve stem of the air brake control valve. The latch member extends into the annular groove on the coupling member to position the button body so as to limit the axial movement of the valve stem and thereby prevent the release of the air brakes.

Abstract: A fire hydrant security system for mounting on a standpipe of a fire hydrant wherein the hydrant has a mounting surface with holes therethrough and a bonnet mounted on the mounting surface, the bonnet surrounding a valve operating spindle assembly. The system includes a security gap which is surrounded by a protective collar spaced from the security cap to define an annular gap. An operating tool having a socket which fits into the gap and surrounds the security cap is used to couple the security cap to the valve operating spindle to open the fire hydrant. The protective collar is preferably made of forged ductile iron and is bolted to the fire hydrant by being bolted to a mounting surface on the standpipe or by being secured by bolts to the bonnet. The security cap is thus protected from blows by sledge hammers wielded by vandals and water thieves.

Abstract: A magnetic security device for preventing unauthorized opening of fire hydrant valves includes an inner cylindrical member which is fixed to a nut on the valve stem and an outer rotatable member which is coupled to the inner cylindrical member by a magnetizable element. The magnetizable element is attracted to move from an uncoupled to a coupling mode by a reaching permanent magnet integral with a special operating wrench. In accordance with one embodiment of the invention, an intermediate sleeve is provided which is coaxial with a nylon sleeve disposed around the outer surface of the inner cylindrical member. In addition, the inner cylindrical member has a knurled portion which engages the surface of a recess surrounding the valve operating nut so that if the outer operating member is tilted with respect to the inner operating member, the inner operating member binds with the wall of the recess, preventing rotation of the inner operating member and of the valve operating nut attached thereto.

Abstract: A fuel line valve locking assembly for a motorcycle that is in fluid communication with a main tank inlet, a reserve tank inlet and an outlet and which selectively locks a fuel supply line valve closed, open to the main tank inlet, or open to the reserve tank inlet is disclosed.

Abstract: A rotary plug valve is disclosed having a housing and a valve core which can be selectively locked in an unlimited number of positions relative to the mandatory inlet and outlet piping, said valve having no visible indication of the internally concealed locking mechanism location. Selectively, a locking pin, that can be activated by authorized personnel, is passed through a passageway engaging a concealed locking cap preventing rotation of the valve core relative to the valve housing for security and safety applications. Removal of the locking pin with an authorized key permits operation for conventional usages.

Abstract: A flow control device for use in a fluid or gas line is disclosed. In one example, the device controls the flow of air to the brakes of a large vehicle such as a semi-trailer truck. The device includes a housing having an inlet port and an outlet port both of which communicate with the interior of the housing and a moveable valve assembly which selectively can close or open the ports with respect to one another. The valve assembly includes means for axially moving the assembly and locking it in open and closed positions. Means are provided for biasing the valve assembly to an open position to prevent accidental closing of the valve which possibly could result in the application of brakes of the vehicle.

Abstract: An anti-theft tamper-proof lock valve for automobile applications for securing the fuel line or the hydraulic brake line to prevent theft having a manually-operated lock in communication with a slide valve positioned in the fluid line, the slide valve selectively movable from an open to a closed position, the slide valve locking in a closed position if the communication conduit between the lock and the valve is subject to tampering.

Abstract: A system for installation in mechanized vehicles which have an hydraulic brake system prevents the unauthorized operation of such vehicles and includes a valve of a special construction which comprises a housing provided with inlet ports and outlet ports for the hydraulic fluid, and an inner core member which is movable within the housing and is provided with bores which correspond with the ports in the housing forming a passage. Further, the valve includes at least one by-pass passage provided with a one way valve, the inner core member is movable rotatively or axially within the housing, and is connected to a key operated lock.

Abstract: A lock mechanism for a rotatable stub such as the operating shaft of a fluid flow control valve has a main body 10 connected to a drive member 12 adapted for mounting on the rotatable stub. A locking sleeve 17 is adapted to fit closely to the machine (e.g. valve) on which the mechanism is fitted so as to be held against rotation, and mounted in the body are two key-operated lock members 25 engageable with the sleeve 17 to lock the body against rotation. Associated with each lock member 25 is a control plate 56, movement of which can be blocked by a stop member 53 so preventing operation of the associated lock member 25. The two stop members 53 are threaded on studs 55 fixed in the body 10, and are moved linearly on being rotated by respective toothed wheels 46, driven by a peg 62 on sleeve 17 as the body 10 is rotated.

Abstract: A removable key operated locking device for a rotary valve includes a locking member having a tip having a selected diameter connected by a throat having a smaller diameter to a body portion which may have a slightly larger diameter than the tip portion and a predetermined length whereby the locking element is completely insertable within a specially designed receiving bore located at one end of the valve housing so as to be completely isolated from access from the exterior except by means of a plunger-type key; a locking cage is disposed within the receiving bore and is held in a predetermined locking position by cooperation with a conically-shaped annular surface formed on the surface of a portion of the locking bore; the locking cage cooperates with one end of cylinder portion of the key whereby, upon insertion of the cylindrical portion, the locking cage will be moved completely out of the path of travel of the tip portion of the locking element but will automatically engage under a spring force the neck

Abstract: An adjustable valve locking system for valves in which the axial position of a spindle which carries a valve element is dependent upon rotation of an actuating mechanism. Such a locking system includes an annular member surrounding the valve spindle and rotatable with the actuating mechanism, a connection between the annular member and the valve spindle whereby rotation of the annular member will cause axial movement of the valve spindle, a ring threadedly engaging the outer periphery of the annular member, and a radially-movable locking bolt movable into engagement with the ring to lock the same against axial movement while preventing rotation of the annular member and any linear movement of the valve spindle to lock the same.

Abstract: A lever operator for use primarily with valves of the plug type in which a tapered plug is raised to unseat associated slips and then rotated to a valve open position during opening of the valve and is rotated to a valve close position and lowered to seat the associated slips for closing the valve. The lever operator comprises an elongated lever arm having an eccentric cam at one end thereof connected to the trunnion of the valve to which the invention is assembled and also comprises a unique dual slot gate mechanism which houses the lever arm and restricts the motion of the arm to the requisite vertical and rotational movement which must be carried out in the appropriate sequence to properly operate the tapered plug mechanism of the valve.

Abstract: A lockable valve in a hydraulic system comprising a valve body, a cylinder, a piston in the cylinder, and an inlet port and two outlet ports, one of the outlet ports leading to a bypass line and the other of the outlet ports leading to an operational hydraulic cylinder; the piston being slidable in the cylinder to selectively close either of the outlet ports. The valve includes a manually lockable means to lock the piston in the position in which the outlet port to the hydraulic cylinder is closed and being spring biased to close the outlet port leading to the bypass line and simultaneously to open the outlet port leading to the hydraulic cylinder when the lockable means is unlocked. An additional safeguard against the theft of vehicles employing hydraulic systems to power auxiliary equipment is provided by using this valve in the hydraulic line between the pressure side of the pump and the control valve of the auxiliary equipment.