Abstract: An LPG bomb apparatus is provided, including: a fuel charging unit formed on a LPG bomb; a fuel conduit through which fuel flows from the fuel charging unit to a fuel pump; a first check valve that is formed on the fuel conduit inside the LPG bomb and sucks the fuel with a pressure of the fuel pump; and a second check valve that is formed on the fuel conduit inside the LPG bomb, is spaced apart from the first check valve, and discharges the fuel to be charged by the fuel charging unit to the LPG bomb.

Abstract: The present invention relates to an anti-theft device for scooters, motorvehicles, snowmobiles, outboard motors, helicopters and other vehicles provided with a fuel control twist grip, which affects the fuel control twist grip. This twist grip is realised in two co-axial consecutive parts, which can be rigidly coupled together, of which the first part is a removable tubular element (1; 501), covered on the outside with an integral grip (10) and the second part is a non-removable tubular element (2; 200; 502), present in the handlebar and engaged with flexible transmission means of the fuel supply control.

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: A fluid flow control valve suitable for fitting to the fuel line (16, 18) of an internal combustion engine has a valve member (12) and a spring (14) urging the valve member (12) to a closed position where the valve member seals against a valve seat (13). A key-actuated setting mechanism (20, 21) allows the valve member (12) to be moved away from its closed position to an open position and a latch (31, 32) then holds the valve member in that open position. An electrically operated release (33) moves the latch (31) to free the valve member and permits the valve to close under the action of the spring (14). When fitted to a vehicle, energy may be provided to the release (33) automatically whenever the vehicle is left unattended so as to immobilise the vehicle.

Abstract: An anti-theft device for use with tractors having hydraulically released braking mechanisms comprises a two-way valve having a handle that can be rotated to a secure position directing hydraulic fluid back to the reservoir and an operating position directing hydraulic fluid to the brake release mechanism. Locking means is provided to lock the handle in its secure position when the tractor is unattended to prevent the brakes from being released and thus to prevent theft of the vehicle.

Abstract: A disguised fuel cut-off theft prevention device including a valve having a first orientation for allowing the supply of gas from a fuel pump to an engine of a vehicle and a second orientation thus precluding the supply of fuel from the fuel pump to the engine of the vehicle, wherein the valve only resides in the second orientation thereof upon the receipt of an activation signal; a micro-receiver residing in a sticker having a top face, a bottom face, and a periphery formed therebetween, the sticker having an adhesive formed on the top face thereof for allowing the coupling thereof to a windshield of the vehicle, the micro-receiver having a first micro-wire connected to a power source and a second micro-wire electrically connected to the valve, the micro-receiver adapted to transmit an activation signal continuously to the solenoid upon the instantaneous receipt of a transmission signal via free space, the micro-receiver further adapted to cease the transmission signal only upon the subsequent instantaneous

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: The subject invention is directed to a device for preventing the movement of a floor-mounted gear shift lever of an automobile from the "park" position to a position useful for operating the automobile. Five specific embodiments are of interest. The first embodiment includes an arcuate retaining lock which operates similar to a handcuff lock and which is mounted outside the gear shift lever console. The first embodiment includes a hingeable lock plate which is hingeably located behind the gear shift lever and which includes a semi-circular cutout portion for receiving the gear shift lever thereby preventing its rearward movement.The second embodiment utilizes a similarly operating locking member but is contained within the gear shift lever console so as to be hidden from view. The third embodiment includes a lever activated housing to enclose and disable a gas pedal. The fourth embodiment includes a housing to enclose a gear shift handle, thereby preventing unauthorized operation of the automobile.

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: The invention is directed to an antitheft device for blocking the passage of fluid in a supply line. Inlet and outlet chambers are coupled in line with the supply. A distribution chamber in flow communication with the inlet and outlet chambers through a passage has a piston movable from an open to a closed position for likewise opening and closing the device. An internal latch operated by means of a key actuates the piston for opening and closing the supply line.

Abstract: A lock assembly and a fluid or fuel line lock assembly resisting theft. The lock assembly includes a housing with a chamber an aperture for a key, and a cutaway. An inner member, preferably frusto-conically shaped, is inserted in the chamber from a direction opposite the key aperture and is secured therein, for example, by a cover member threaded into the end of the chamber opposite the key aperture. The fuel line lock uses the lock assembly and provides housing breakaway, fuel shut-off, line crimping, and air drawing features to frustrate a potential thief of the motor vehicle using the fuel line lock assembly of the present invention.

Abstract: A valve body is disclosed located in the hydraulic system of a machine which valve serves to direct hydraulic fluid under pressure to hydraulic components or divert the fluid to a system reservoir to prevent component operation. A check valve in the valve body is opened or closed by control means with the check valve indirectly determining the position of a pressure responsive spool for either normal fluid passage to hydraulic components or fluid diversion back to a reservoir. Remote actuation of the control means is by a hand operated air, lockable pump to enable an authorized equipment operator to remotely actuate said control means to effect locking or unlocking of the hydraulic system by positioning the check valve. A modified check valve control dispenses with the air pump and utilizes a lock plunger to bias the check valve to a closed position for normal hydraulic system operation or, conversely, to open the check valve to divert pressurized fluid back to a system reservoir.

Abstract: A locking device intended to be mounted on a fuel pipe nipple (15), which is provided with bayonet locking pins, so as to make it impossible to connect a fuel hose coupling to an outboard motor on a boat. The locking device comprises an elongated external sleeve (1), which at one end is provided with an internally situated lock (6) and at the other end with bayonet locking grooves (20,21,22,23) corresponding to the bayonet locking pins (16). The lock (6) has an axially movable locking piston (9) cooperating with an internal sleeve (14) which is axially displaceable inside the external sleeve (1) between a retracted first position, which permits relative interconnection and release, respectively, of the pipe nipple (15) and the locking device, and an advanced, second position in which the bayonet locking pins (16) are kept securely fixed in the bayonet locking grooves (22,23).

Abstract: A locking mechanism for fuel lines in vehicles in which at least a part of the unit is constructed of aluminum to resisting flame cutting and hardened steel dowel pins are used to resist saw cutting. The locking mechanism has an internal recess which encloses a fuel line valve in a closed position. The locking mechanism is comprised of two members which are interlocked to one another by a rotatable keying element which is in one member and selectively engages with the other member upon operation of a key to lock the members to one another while the fuel line valve is in a closed position.

Abstract: Disclosed herein is a locking mechanism for closing the gas line in an automobile, said locking mechanism comprising a tumbler lock engaged to a rotary valve adapted for insertion into a fuel line. The valve itself comprises a rectangular body having a transverse circular opening formed therein across which the fuel flow communicates. Installed in the transverse opening is a rotary planar vane being rotatable to a first position uncovering the inlet and outlet ports of the circular opening and conformed on its exterior edges to the opening periphery, said vane having stand-offs on the bottom thereof for providing a communicating path for the gasoline and being rotatable to a second position closing off the communicating path. In the last position the thickness of the vane blocks the passage of gasoline thus precluding unauthorized use of the automobile. It is contemplated that the foregoing lock be installed in the floor surface of the automobile, the valve extending therefrom being placed into the fuel line.

Abstract: An arrangement is disclosed for use in conjunction with an antitheft locking fuel line shutoff valve for automotive vehicles which prevents efforts at bypassing or tampering with the valve in attempts to circumvent the locking fuel line shutoff valve. The antitamper arrangement includes a spring-biased fuel line blocking plug disposed within the fuel line and positioned just behind the vehicle fuel pump inlet stem, the blocking plug being restrained from blocking engagement with the fuel pump by means of a flexible cable connected to a rod integral with the blocking plug, the cable passing down the length of the fuel line and anchored at the locking fuel line shutoff valve.

Abstract: A throttle grip locking device for a motorcycle. A rotary throttle grip has a locking member disengagably engaged with an engaging member to prevent rotation of said throttle grip when the motorcycle engine is not operating.

Abstract: Disclosed is a valve for selectively preventing fluid flow along a flow line. A plunger of a locking mechanism moves a valve stem between a first position, in which the valve is in an open configuration, and a second position in which the valve stem presses a resilient diaphragm into sealing engagement with an annular seat circumscribing an outlet port resulting in a closed configuration for the valve. The valve stem may be moved from the second position to the first position only by unlocking the locking mechanism. In the embodiment shown, the valve is interposed along a fuel flow line between a fuel supply and an engine in a motor vehicle. Inlet and outlet flow line receiving means are integrated in a plastic housing, which includes two components riveted together.

Abstract: A valve positioned in the fuel supply line of a vehicle has two positions selectable by means of a key-operated lock. In the first position, the valve permits full fuel flow allowing the vehicle to operate in its normal manner. In the second position, the valve only permits a greatly reduced fuel flow allowing the vehicle to operate at idle speed, and thereby preventing the vehicle from being operated in its normal manner by an unauthorized user.