Abstract: The valve has: a body projecting an inlet duct and an outlet duct; a seat in the inlet duct and cooperating with a sealing ball; a helical spring between the sealing ball and a supporting ball; a rotor mounted on the body and having a cam surface, cooperating with the supporting ball; a locking member having a magnet and housed within each cavity of the rotor, and to be moved between operative and inoperative positions; a spring in each cavity and forcing the locking member into the operative position; and retention housings, each of two of the latter being opposite to each other, receiving one of the locking members in the operative position, in a rotational position of the rotor.

Abstract: A safety assembly provided with an automatic fire extinguisher system includes an engagement member, a blocking member, and an extension member. The engagement member is slidably received within an outlet port of a valve housing. A blocking member having a first blocking member portion and a second blocking member portion is at least partially received within a cavity defined by the valve housing. The extension member extends between the engagement member and the blocking member.

Abstract: A metering device with a protective sleeve or cover is described. The metering device adjusts a flow of a fluid. The metering device includes a valve, a neck, and a stem. The neck includes an opening to receive the stem in a rotational engagement. The stem is engaged to the valve to adjust the valve. The sleeve or cover encloses or covers the opening. The sleeve includes a first opening and a second opening. The first opening attaches to the neck. A knob inserts through the second opening of the sleeve. The knob attaches to the stem, and rotating the knob adjusts the valve.

Abstract: A locking system is provided for interconnection to a hydrant. The locking system is generally comprised of a lock body and lock that work in concert to block the operation of hydrant components, namely a control rod and/or a stem screw, that controls fluid flow through the hydrant.

Abstract: A housing has upper and lower faces, front and rear faces and side faces. A vertical bore extends through the housing between the upper and lower faces. A horizontal bore extends into the housing from the front face. The horizontal bore further extends to the vertical bore. A ball valve is positioned within the vertical bore laterally spaced from the horizontal bore. The ball valve is rotatable between open and closed orientations. A lock cylinder is located within the vertical bore. The lock cylinder has an exposed end with a keyway. The lock cylinder has an unexposed end with a connector clip. The connector clip couples the lock cylinder and the ball.

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: 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: 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 valve opening/closing handle lock mechanism provided in a valve having a manually operated valve opening/closing handle (1) is capable of maintaining the security of the valve by preventing the valve from being opened or closed by accident or with malicious intent after completion of a proper opening/closing operation of the valve by means of the handle (1). The handle lock mechanism comprises a locking cap (4) mounted on the handle (1). The locking cap (4) functions to prevent the handle (1) from being operated, extends from the handle (1) to a handle mount portion (3) of the valve so as to cover the corresponding portion of the valve with the locking cap (4), and is provided with: an opening (5) through which an end portion of the handle (1) passes outward; or, a longitudinal groove through which the end portion of the opening/closing handle (1) slidably passes outward.

Abstract: The present invention generally relates to a locking apparatus adapted to interface with a valve and to selectively secure the valve in an open or closed position. More specifically, a valve handle lock is provided which is tamper resistant and is generally capable of use with valves produced by many manufacturers. The present invention further includes a locking mechanism that shrouds a portion of the valve handle attachment hardware and which can be used in conjunction with a typical padlock or other type of securement mechanism.

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 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 sealed operator is provided for operating an internal locking control element for a closure head for the inner container in a dual container hazardous waste storage system. The operator includes a cylindrical housing in which a bushing/operator element assembly is mounted for translational movement. The latter assembly includes a cylindrical bushing sealingly mounted in the housing, a spherical bearing assembly including an annular outer bearing press fit within the bushing and an annular inner bearing. An operator element is press fit within the inner surface of the inner bearing. The operator element includes a driving head which engages the locking control element for the closure head of the inner container.

Abstract: A lockable valve (7) for a fuel line contains a fuel inlet (2) and fuel outlet (3) which communicates with one another via a passage (6) in which is located a spring-biased piston (15) which is responsive to a pressure change in the fuel line. Associated with the piston (15) is a spring biased plunger (11) which controls a valve (8) to close or restrict the flow of fuel through passage (6). At the other end of the piston (15) is a resetting device (23, 24) which requires an unlocking action before the piston can be extended to withdraw the plunger 11 so as to open the valve. When a fall in pressure is detected by the piston (15), it causes operation of the valve (8) to stop or restrict fuel flow but this operation may only be reversed by the unlocking action.

Abstract: An outdoor water faucet article is configured to secure a building water faucet from unauthorized use. The article is lockable, yet is readily unlocked to access the water faucet. The article comprises a first housing half, a complementary second housing half and locking mechanism. The first and second housing halves are hingeably connected. Together they form an enclosure for the water faucet and can be secured together by the locking mechanism to prevent access to the water faucet. Upon unlocking, the second housing half is rotated away from the first housing half to allow full access to the water faucet so that its handle can be turned and a garden hose attached to its terminus. A wall mounting mechanism is optionally used to attach at least one housing half to a wall of the building where used. Insulation can be used to line the interior walls of the housing halves to add a freeze protection feature to the article.

Abstract: A locking device for a parking brake on a bus having air brakes prevents accidental release of the parking brake when a sensing switch indicates that the bus should not move (e.g., when the driver is absent from the driver's seat, or a passenger-access door is open). The locking device of the invention is affixed to a portion of the bus adjacent a parking brake air valve that has an air valve shaft moving along its axis between a fully extended position, in which the valve is in a brake-applied status, and a frilly retracted position in which the valve is in a brake-released status. The locking device has a locking arm moving between a locked position in which it prohibits the parking brake valve shaft from moving into the fully retracted position and an unlocked position in which it does not affect the motion of the valve shaft. Conventionally, the valve shaft has a knob on the end distal from the valve body, and the locking arm in the locked position, prevents the knob from being pushed in all the way.

Abstract: Difficulties with accessibility to a valve and the entry of precipitation into a locking mechanism for the valve are eliminated in a security valve assembly that includes a valve body (22), (100) including a pair of spaced ports (12), (18); (102), (104) with a passage (38), (106) extending between the ports. A valve member (26), (110) is rotatable within the body between an open position and a closed position and may be rotated by an actuator (32), (118). The body (22), (100) includes a lock receiving chamber (50), (130) for removably receiving a lock (52), (136) in a direction generally transverse to the passage (38), (106).

Abstract: The present invention involves a hydraulic device for immobilizing the wheel of a stationary trailer. The locking brake is spliced into a brake line of a trailer carrying a surge brake system and allows an individual to manually activate the trailer brake when the trailer is stopped. The brake device includes a housing block with a cylindrical bore and a spring biased piston. A shank is connected to the piston and provides a manual handle for shifting the position between an inner and outer position. In the outer position, brake fluid may flow from the brake system actuating device. In its inner position, brake fluid is prevented from flowing from the actuating device and is pressurized to lock each brake. The housing block also includes a pivotally secured lock pin which engages a hole on the shank to secure the shank to the housing block. In this manner, the brakes of the trailer may be secured in a locked position.

Abstract: A valve lock for valves wherein the valve stem is coupled to a valve actuator shaft and there is a spacing between the valve and valve actuator. A locking member is slidably receivable in the spacing and fixed against rotation so that a locking slot in the locking member engages a locking segment of the interconnected valve stem and valve actuator shaft. The locking member, in turn, can be releasably locked to prevent unauthorized or unintended use of the valve.

Abstract: There is described a lock plate assembly for use with a three-position ball valve. The valve has a body, a valve element disposed for rotation within the body, and a handle mounted for rotation upon the body for operation of (off) position, a second (test) position and a third (drain) position. The lock plate assembly includes a lock plate frame defining a first frame stop for the handle in the first position and a second frame stop for the handle in the third position, a slide latch defining a latch stop for the handle in the second position, the latch stop being mounted upon the frame for movement between a first latch position with the latch stop disposed to prevent movement of the handle to the third position, and a second latch position with the latch stop removed from the path of the handle, and a spring or the like for biasing the slide latch toward the first latch position.

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: 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 valve assembly comprising a valve having a housing and a valve element disposed in the housing and movable between closed and open positions, the valve element having a wing portion provided with an opening therein movable between a first position when the valve element is in the closed position and a second position when the valve element is in the open position, the housing having a wing portion provided with an opening therein disposed in lockable relation with the valve element wing portion when the valve element wing portion is in its first position, a rigid spacer member disposable between the housing and valve element wing portions when the valve element wing portion is in its second position, a barrel lock removably mountable in registered openings of the wing portions when the valve element wing portion is in its first position whereby the valve element will be locked in the closed position, and the rigid spacer member having a hook portion cooperable with the opening in the valve element wing port

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 rotary plug valve has a body providing a seat for a rotatable valve member which has an operator surrounded by a portion of the body and which may be rendered inaccessable by a cover closing the surrounding portion of the body and lockable to the valve member.

Abstract: A locking valve has a housing defining a fluid flow passageway, a stem bore and a lock bore intersecting the stem bore. A plug or stem may seat in the stem bore for movement between passageway opening and closing positions. A locking device is disposed in the lock bore and is arranged automatically to arrest and prevent movement of the stem upon its movement to a desired locked position such as when it closes the passageway.

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: A lock mechanism for vehicles, such as cars, forklifts and earth moving equipment, having hydraulic systems for brakes, transmissions or clutches is disclosed. The mechanism includes a double non-return cam and hydraulic actuated valves which when closed retain fluid under pressure in the brake, transmission or clutch system, to prevent movement of the vehicle, such as by holding brakes on or clutches in the disengaged position.

Abstract: An adjustable lock for rotating drives, more particularly pipework fittings such as screwdown valves, gate valves or the like wherein the drive is required to make a number of revolutions. In the adjustable lock, a planetary transmission is provided as a reducing transmission in order to reduce drive rotation to at most one revolution and, therefore, to define a definite locking position.

Abstract: A hydraulic wheel brake device is provided for connection between the master cylinder and the wheel brake cylinders in the brake fluid line. The device includes a lock housing connected to a hydraulic cylinder wherein the hydraulic cylinder includes a fluid chamber having an inlet and outlet in fluid communication with the chamber. A valve seat is located over the inlet in the fluid chamber and a spring is disposed in the chamber having a steel ball held therein. A lock and rotary cam mechanism are located within the lock housing wherein rotation of the lock rotates the cam mechanism thrusting a rod connected between the rotary cam mechanism and the spring. The rod forces the spring to compress which seats the ball against the valve seat restricting fluid flow to the brakes thereby locking the fluid brake system.

Abstract: A security housing for surrounding a valve attached to a storage tank comprising a pair of hinged clamshell structures (e.g., hollow semi-cylindrical enclosures) that are also pivotally hinged to the storage tank adjacent to an outlet pipe with valve such that the clamshell structure when closed surrounds the valve, yet swings away from the valve to allow access thereto. The security housing is further equipped with an opening which allows manual access to a padlock and padlock eyelets on the interior of the housing. Such a structure is useful to prevent unauthorized access to crude oil stored in the oil field and the like.

Abstract: A locking frame for a ball valve consists of a sheet metal stamping folded into an enclosure having upper and lower plates to partially surround a part of the operating handle and the nut which secures the handle. The handle is keyed to the valve stem and engages body flanges to limit travel to valve open and valve closed positions. The frame is also fitted over the valve stem and includes tabs which engage the flanges to position same and to prevent rotation thereof. The upper plate is folded to a position parallel to the lower plate after assembly and includes a depending tab to further enclose the nut to prevent tampering. A pair of holes in the upper and lower plates are thus in registry and the shackle of a padlock may be passed therethrough to prevent movement of the handle from the valve open and valve closed positions.

Abstract: A locking valve having a housing and a valve element movable with respect to the housing to selectively occlude a passageway through the housing. Stops on the outside of the housing normally limit movement of the valve element to a first range of positions encompassing a normal closed position and a normal open position. An interior locking mechanism concealed within the housing is operative to arrest the valve upon its movement to one of such positions. The interior locking mechanism is also operative to arrest the valve element upon its movement to a position outside of the normal or first range of positions. Thus, the interior locking mechanism cannot be defeated by removing the exterior stops and moving the valve element beyond its normal range of positions. The interior locking mechanism prevents removal of the valve element, and the interior locking mechanism is protected from forcing or picking.

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 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.

Abstract: A valve stem lock for valves having an exposed valve stem. The lock is comprised of a pair of hinged sections movable from an open position to a closed position to lock about a valve stem. The two sections are provided with a base having slots which are adapted to bear against exposed bolts or the yoke of the valve stem so that rotation of the valve stem upon removal of a part such as a bushing nut or the like is prevented. The two hinged sections are adapted to be locked together in the closed position.

Abstract: An anti-tampering device for protectively housing a valve stem operator, wherein the valve stem operator is connected to a pipe. The device includes a skirted keeper body having a main aperture and a pair of spaced hooked legs for hooked up engagement with the pipe on either side of the valve stem and in depending relation to the body. The skirted keeper body further includes an upstanding member having a first padlock aperture and means for connecting the legs to the body. The device includes a cap having a first padlock end with a second padlock aperture such that when the cap is in overlaying relation to the main aperture, the padlock apertures of the cap and body are in alignment.