Antitheft Valves And Locks Patents (Class 123/198B)
  • Patent number: 5975054
    Abstract: A security system, which prevents unauthorized access to an adjusting or function element of a fuel supply pump. To that end, the security device comprises a base part, having a bottom by way of which the base part is screwed to a housing wall of the fuel supply pump, and a cap part which is placed, surrounding the function element, on the base part in such a way that the cap part has a side wall that is surrounded with positive complementary engagement by a side wall of the base part. This prevents access to the function element and to the fastening of the base part. The cap part is secured to the base part by connections that are secured against access.
    Type: Grant
    Filed: February 9, 1998
    Date of Patent: November 2, 1999
    Assignee: Robert Bosch GmbH
    Inventors: Carlos Alvarez-Avila, Helmut Haberer
  • Patent number: 5924401
    Abstract: A security device in which a cap-shaped element is mounted covering essential functional and/or adjusting elements of a fuel delivery device. The cap-shaped element is connected to the parts of the fuel delivery device that it encloses in such a way that gaining access to the parts or to removing the cap-shaped element is only possible through destructive means and that when a particular destructive force is exceeded, a fracture occurs at a rated break point by means of which a functional or adjusting element or the defining wall that carries this element is fractured in relation to a fuel-carrying space of the fuel delivery device.
    Type: Grant
    Filed: January 14, 1998
    Date of Patent: July 20, 1999
    Assignee: Robert Bosch GmbH
    Inventors: Claus Maier, Carlos Alvarez-Avila, Helmut Haberer
  • Patent number: 5861799
    Abstract: The invention relates to a device and system for preventing improper use of a car. The device uses an electronically controlled fuel shut off system located internally of the fuel tank. The system requires the operator of the car to enter a private identification number or PIN code in order to operate the vehicle. In addition, the electronically controlled fuel shut off system is remotely activated allowing law enforcement officials, upon encountering the car being used improperly, to shut off the fuel supply and disable the car. Upon entry of a security code by law enforcement officers, the circuit board stops the flow of current to the fuel shut off system, thereby halting the flow of fuel through the fuel line and shutting down the engine.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: January 19, 1999
    Inventor: Ryszard F. Szwed
  • Patent number: 5821631
    Abstract: A security system for a vehicle includes a keyboard for receiving input codes that comprise user input codes and a start code. A processor is operably coupled to the keyboard for receiving signals indicative of each input user code and the start code, wherein the processor provides an output signal if an input user code corresponds to an user code and is followed by the start code. The processor also provides the output signal if the start code has been entered during an adjustable time period after the vehicle has been turned off. A controlled device is operably connected to the processor and controls a component of the vehicle to allow the vehicle to start when the output signal from the processor is received.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: October 13, 1998
    Assignee: Clark Equipment Company
    Inventors: Orlan J. Loraas, Scott B. Jacobson
  • Patent number: 5697232
    Abstract: The invention relates to a device (1) for preventing unauthorized use of an engine provided with a spark plug, from which the ignition cable has been removed and conditions have been provided which will enable the spark plug to be covered and therewith made irremovable, or at least not readily removable. The device includes a sleeve (6) which can be fitted over a spark plug (2) to which no ignition cable is connected, and a spark-plug coacting locking part (4, 5). The sleeve (6) and the locking part can be locked in a position relative to one another or in a position in which they are able to move relative to one another, through the medium of a locking device (7).
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: December 16, 1997
    Inventor: Sten .ANG.strom
  • Patent number: 5615649
    Abstract: An engine security system includes a security device adapted to receive a sequence of timing pulses which is generated in dependence on the rotation of the engine. The device generates an ignition pulse sequence synchronous with rotation of the engine from the sequence of timing pulses on receipt of an enabling code. The ignition pulse sequence is supplied to the ignition system of the engine for the generation of ignition sparks. The pulses in the timing pulse sequence occur at different times from pulses in the ignition pulse sequence. In preferred embodiments, the sequence of timing pulses includes an identity code encoded therein.
    Type: Grant
    Filed: October 5, 1995
    Date of Patent: April 1, 1997
    Assignee: Cosmo Solution Limited
    Inventor: Siu M. Yung
  • Patent number: 5515703
    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.
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: May 14, 1996
    Inventor: Clifford S. Chance
  • Patent number: 5345902
    Abstract: A device is provided as part of a fuel cut-off system which includes a switch for selectively opening and closing the flow of fuel to an engine. Verification actuation information is received from an external source and compared with stored, predetermined actuation information and, provided there is a correspondence between the received and stored actuation information, selectively actuates the switch to shut off or open the flow of fuel to an engine. Moreover, the device may have the ability to cut off the flow of fuel at any time as controlled from an external source. The device may further include a clock to identify when the flow of fuel is to be shut off.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: September 13, 1994
    Assignee: Fuelproof Systems, Inc.
    Inventors: Frederick R. Kalail, Sr., Harry M. Lapidakis
  • Patent number: 5222468
    Abstract: An ignition apparatus for an engine includes an ignition switch and a monitor switch connected to a battery. A power supply circuit generates a reset signal for a microcomputer in response to closing of the ignition switch. A monitor signal generating circuit generates a monitor signal for the microcomputer in response to closing of the monitor switch. The microcomputer enables ignition to take place only if the monitor signal has a prescribed value when the reset signal is generated. The timing of the reset signal and the timing of the monitor signal are chosen so that the microcomputer will enable ignition only if the ignition switch and the monitor switch are closed substantially simultaneously and will prevent ignition when the switches are closed sequentially, such as when the switches are hot-wired.
    Type: Grant
    Filed: April 22, 1992
    Date of Patent: June 29, 1993
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Takaharu Korenaga
  • Patent number: 5188069
    Abstract: The safety interlock prevents the starting of a device if one or more safety switches is not first cycled through its operational cycle. Since the safety switches must be operated before starting, the device will not operate if the switches have been tampered with or have failed. The interlock includes a digital memory unit connected to the switch which stores information indicative of the cycling of the switch. The output of the memory unit is interconnected with the starting system of the device such that starting is prevented unless the stored information indicates that each switch has been cycled. In a preferrred embodiment the interlock includes a microprocessor.
    Type: Grant
    Filed: November 13, 1991
    Date of Patent: February 23, 1993
    Assignee: Briggs & Stratton
    Inventor: John A. Fiorenza, II
  • Patent number: 4977978
    Abstract: An oil change apparatus for use in changing the motor oil in a motor vehicle includes a key-operated drain valve removably mounted within a lockable protective housing and a flexible line connecting the drain valve with the engine oil pan of the motor vehicle. An oil filter relocation flange and bracket accessibly mounted within the engine compartment and coupled via oil lines to the original engine block receptacle for the oil filter serves to relocate the engine oil filter to a position that provides easy access. A power assisted oil change apparatus includes an electrical pump and electromechanical valve conveniently mounted within the engine compartment of the motor vehicle for pumping used motor oil from the engine oil pan into a disposable container at oil change times.
    Type: Grant
    Filed: July 31, 1989
    Date of Patent: December 18, 1990
    Inventor: Mazen P. Batrice
  • Patent number: 4909199
    Abstract: A system for controlling an ignition device for a a motor vehicle comprises a key operated movable member, a blocking mechanism for automatically blocking the key operated movable member against return movement once the key operated movable member has moved beyond a predetermined position, and means responsive to a predetermined condition of the vehicle for restraining a manual release member of the blocking mechanism from actuation for releasing the blocking mechanism.
    Type: Grant
    Filed: July 21, 1988
    Date of Patent: March 20, 1990
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Tomotaka Kurozu, Yoshimitsu Takeda, Hiroyuki Asano, Terukiyo Murakami, Yuichi Abe
  • Patent number: 4884207
    Abstract: The present invention relates to a start controller for an engine of a vehicle comprising fuel supply means for supplying fuel to the engine at current flowing time, an electric driver for flowing a current to the fuel supply means, control means for holding a specific code, comparing an input code with the specific code to judge the coincidence and instructing to flow a current to the driver when both coincide; and means for inputting the code to the control means. Thus, the start controller can prevent the vehicle from being stolen.
    Type: Grant
    Filed: April 2, 1986
    Date of Patent: November 28, 1989
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Toru Asada, Kenichi Komuro, Ryoichi Fukumoto, Nozomu Torii
  • Patent number: 4881148
    Abstract: A remote control system which includes (a) a receiver unit adapted to be fixedly mounted on a motor vehicle having at least one door lock with a first locked condition and a second unlocked condition and having means for receiving a coded signal including a code portion of binary bits, memory means for storing a first code of binary bits, means for comparing the code portion of a received coded signal with the first code and means for shifting the controlled device to one of the conditions upon the comparison match between the code portion of a received signal and the stored first code and (b) a transmitting unit for transmitting the stored second code of binary bits when the door lock is to be shifted into one of its conditions.
    Type: Grant
    Filed: October 19, 1988
    Date of Patent: November 14, 1989
    Assignee: Wickes Manufacturing Company
    Inventors: George Lambropoulos, Kenneth R. Pitera, Robert A. Hair
  • Patent number: 4848509
    Abstract: A central locking system for motor vehicles, not only doors and tailgate and gas tank-cap lids, but also several flaps of containers arranged in the passenger space (gloveboxes, small luggage compartments). These locks can be released and locked jointly by a unitary switch signal, or for specific conditions, both the doors and lids and the flaps can respectively be locked and released separately in groups.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: July 18, 1989
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventors: Ulrich Bruhnke, Jurgen Korber, Helmut Fischer, Ingo Jobmann, Dieter Feichtiger, Hans Deischl, Gunther Weikert, Josef Schumacher, Klaus Claar
  • Patent number: 4745897
    Abstract: A system to avoid theft of vehicles equipped with internal combustion engines by automatically blocking the fuel flow. This automatic blocking exists every time the engine is turned off or optionally, when any vehicle door is opened while the engine is running.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: May 24, 1988
    Inventor: Jose O. V. Tejeda
  • Patent number: 4733638
    Abstract: A security starting system for a motor vehicle is disclosed. The system includes a portable hand-held transmitting device carried in the passenger compartment of the vehicle; by the operator and a receiving device located in the housing of the starter in the engine compartment of the vehicle. An operator desiring to start the vehicle actuates the transmitter. When the receiver detects the transmitted signal, it produces an electrical signal which closes a switch connected in series to the motor vehicle ignition system thereby allowing the ignition switch of the ignition system to start the vehicle.
    Type: Grant
    Filed: August 14, 1986
    Date of Patent: March 29, 1988
    Inventor: Lyle V. Anderson
  • Patent number: 4716875
    Abstract: The safety plug device is adapted to releasably plug the fluid fuel line of an internal combustion engine. The device has an external multiple stepped cylindrical configuration and/or central cavity with a like configuration so that it can be used effectively with various diameters of fuel lines and can either be inserted in the central opening of the fuel line or can be disposed over the fuel line, to prevent loss of fuel after the fuel line is removed from, for example, a carburator. The device is preferably of resilient elastomeric material resistant to deterioration by fuel and can include metal inserts, or be all metal, ceramic, etc. Thus, danger of fire from spilled fuel such as gasoline, kerosene, oil and the like can be readily avoided by the use of the plug device. Moreover, because the plug device physically reinforces the fuel line, clamping of the fuel line at the plug device does not damage the fuel line, in contrast to conventional clamping which breaks down the fuel line.
    Type: Grant
    Filed: August 18, 1986
    Date of Patent: January 5, 1988
    Inventor: Fernando Troncoso, Jr.
  • Patent number: 4665725
    Abstract: An anti-theft system for a vehicle having a starter motor with a pinion for engaging the flywheel of the vehicle's engine to start it. A sleeve is mounted on the starter motor shaft so as to be slideably moveable between a disabling position in which the sleeve is disposed in the path of motion of the pinion to prevent it from engaging the flywheel, and a retracted position in which the sleeve is spaced from the pinion to permit its normal operation. A metal sheathed cable is so connected between the sleeve and a handle mounted in the vehicle's passenger compartment to permit the user either to disable the starter motor or to permit its normal operation.
    Type: Grant
    Filed: September 23, 1985
    Date of Patent: May 19, 1987
    Inventor: Edmund F. Machcinski
  • Patent number: 4606426
    Abstract: An anti-theft device for automobiles incorporates an internally splined sleeve that is slidable on axially aligned splined sections of the steering column between a positions in which the sections of the steering column are interconnected, and, a disabling position in which the splines on an upper section of the steering column are located within an unsplined section interiorly of the sleeve and freely rotatable therein, and, the steering wheel is thus freely rotatable in either direction.
    Type: Grant
    Filed: November 2, 1984
    Date of Patent: August 19, 1986
    Inventor: Manuel de la Orden Azuaga
  • Patent number: 4592317
    Abstract: A motor vehicle theft deterrent device comprising a supply of oil or other oily fluid introduced into the motor vehicle engine intake through one of the engine suction lines upon operation of the engine while a hidden switch is closed and turns on a valve disposed in the line connecting a reservoir containing the oil or oily fluid to the engine intake. The excess oil or oily fluid being ingested by the engine causes a telltale cloud of smoke at the exhaust and causes malfunction of the engine.
    Type: Grant
    Filed: March 28, 1985
    Date of Patent: June 3, 1986
    Assignee: Benjamin Brant
    Inventor: Albert A. Wrobel
  • Patent number: 4579017
    Abstract: A restoring device for an adjusting element, which serves in particular for restoring a throttle device of an internal combustion engine. The restoring device has a first spring subject to bending, which is disposed on a bushing that is rotatably supported about a throttle valve shaft and with one end engages a step of the bushing, while the other end of the spring is hooked onto the housing on the throttle valve fitting. A lever is connected with the shaft. The first spring subject to bending acts in the restoring direction of the throttle valve. A second spring subject to bending is disposed in the bushing, one end of this spring engaging the bushing and the other end being supported on the lever. The spring force of the second spring subject to bending is less than that of the first such spring, so that the bushing, with a stop step, is rotated so far that the second spring has not influence in the restoring direction upon the throttle valve.
    Type: Grant
    Filed: June 18, 1984
    Date of Patent: April 1, 1986
    Assignee: Robert Bosch GmbH
    Inventor: Hermann Nusser
  • Patent number: 4545343
    Abstract: An antitheft device is provided for vehicles having an engine, a battery and a starter solenoid contactor. The antitheft device includes an electrical starter assembly having a casing, a device for starting an engine by engaging a flywheel, and a servo controlled switch. Also included is an ignition key switch and an encoder and a decoder connected between the servo controlled switch and ignition key switch.
    Type: Grant
    Filed: September 11, 1984
    Date of Patent: October 8, 1985
    Inventors: John Cook, Harold Tate, Jr., J. W. Graves
  • Patent number: 4522569
    Abstract: A diesel engine fuel supply system having an injector pump, a fuel tank, a fuel inlet conduit between the fuel tank and the injector pump and a fuel return conduit between the injector pump and the fuel tank, a venting fuel valve including a valve body, an adapter for mounting the valve body on the injector pump, a fuel inlet on the valve body for receiving the fuel inlet conduit, a fuel outlet on the valve body for transmitting fuel to the injector pump, a vent in the valve body in communication with the atmosphere, a valve spool in the valve body movable to a first position for effecting communication between the fuel inlet and the fuel outlet to supply fuel to the injector pump while preventing venting of the fuel outlet to the atmosphere through the venting means, and the valve spool being movable to a second position for preventing communication between the fuel inlet and the fuel outlet and for effecting communication between the injector pump and the atmosphere to thereby vent the injector pump and pre
    Type: Grant
    Filed: October 28, 1982
    Date of Patent: June 11, 1985
    Assignee: McGard, Inc.
    Inventor: John H. Taylor
  • Patent number: 4495910
    Abstract: A locking valve construction including a housing, a valve member in the housing, a fluid inlet and a fluid outlet in the housing, a valve member rotating key for rotating the valve member to an open position for selectively effecting communication between the fluid inlet and the fluid outlet, a holding member effectively mounted on the housing for holding the housing against rotation relative to a base when the valve member is being rotated by the valve member rotating key, and mounting structure for mounting the housing on the base for permitting the housing and the valve member to rotate as a unit in the event that the holding member is rendered inoperative to thereby prevent movement of the valve member relative to the housing to an open position.
    Type: Grant
    Filed: April 21, 1982
    Date of Patent: January 29, 1985
    Assignee: McGard, Inc.
    Inventor: John H. Taylor
  • Patent number: 4485887
    Abstract: There is provided in a motor vehicle a time delay operating circuit breaker interposed in the grounding path of the ignition coil with a normally open contact set of a relay in parallel with the circuit breaker. The relay can only be energized if, after the ignition key switch is closed, a concealed switch is momentarily closed. Otherwise, the circuit breaker will after a given time open and no current can flow through the coil so that the vehicle will stop if running.
    Type: Grant
    Filed: October 31, 1983
    Date of Patent: December 4, 1984
    Inventor: Michael W. Morano
  • Patent number: 4471852
    Abstract: An anti-theft device for an automotive vehicle such as a car or truck having fluid pressure-operated brakes is disclosed. The device includes a lockable member that, when activated while the brakes have been applied by the driver, inhibits any substantial change in the then existing fluid pressure condition in the brake fluid pressure system of the vehicle. The brakes thus remain locked, preventing normal movement of the vehicle, even if the brake pedal is subsequently released and the engine is running. The device can also include an additional lockable member for immobilizing the brake pedal to prevent its being depressed. Optionally, the device can also include one or more electrical switches which are operated, when either lockable member is activated, to ground out the distributor and/or open the ignition circuit at a point away from the ignition lock terminals, thereby to prevent starting of the engine. Preferably a special key is provided for releasing the lockable member, and special screws, e.g.
    Type: Grant
    Filed: February 8, 1982
    Date of Patent: September 18, 1984
    Assignees: Ike Schield, Joseph Urbano
    Inventors: Israel Schield, Nathan G. Williford, Joseph V. Urbano
  • Patent number: 4457187
    Abstract: An internal combustion engine such as that used on a motorcycle is made burglarproof by making inoperable any one of a number of movable engine parts. Externally a key is used to lock such engine elements as the crankshaft, drive shaft, transmission components, shift components and clutch components. A locking means is also disclosed that prevents the two engine casings from being taken apart.
    Type: Grant
    Filed: December 10, 1980
    Date of Patent: July 3, 1984
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventor: Masaharu Tsuboi
  • Patent number: 4452197
    Abstract: Ignition foiling device which serves to interfere with the efficient operation of a vehicle ignition system after a brief, predetermined period of time has elapsed subsequent to the unauthorized start-up of the vehicle engine. The foiling device thereby serves to thwart the theft, or other confiscative act directed at a protected vehicle, through first allowing the vehicle engine to start-up in an apparently normal manner and operate for a brief period of time, thereby allowing the illicit operator to drive the vehicle into an attention getting location. The ignition system then becomes irregularly interrupted in such a way that the illusion of misfiring and performance malfunction of the engine is created which serves to discourage the illicit operator from continuing with the attempted theft.
    Type: Grant
    Filed: August 11, 1982
    Date of Patent: June 5, 1984
    Inventor: Harold J. Weber
  • Patent number: 4438752
    Abstract: A vehicle ignition system comprises a transformer having a primary winding and a secondary winding for providing the desired high voltage to the spark plug of the vehicle engine and a circuit including a further winding for said transformer connected across a switch and a load. The switch is operable only by a security device and when it is closed, the load absorbs energy from the transformer so that insufficient voltage is generated at the spark plug and the vehicle is immobilized. The load can be replaced by a reverse flux generator, the reverse flux opposing that generated by the primary winding. The security device may comprise a conventional key and keyhole, or more sophisticated devices such as code readers which read a code inputted from a magnetic card or from a keyboard. Further security may be provided by a further switch in series with the primary winding and battery, the further switch being operable in synchronism with and in the opposite sense to the first mentioned switch.
    Type: Grant
    Filed: September 4, 1981
    Date of Patent: March 27, 1984
    Inventor: William S. H. Cheung
  • Patent number: 4353336
    Abstract: A fuel pumping apparatus includes a slide member which can be engaged with an arm of a throttle which controls the flow of fuel to an injection pump of the apparatus. The slide is moveable by an operator to cut off the supply of fuel to the associated engine. A tumbler lock mechanism is mounted in a housing of the apparatus and is connected to an arm which can engage a production on the slide member to move and/or retain the slide member to the position in which supply of fuel to the engine is prevented.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: October 12, 1982
    Assignee: Lucas Industries Limited
    Inventor: Dorian F. Mowbray
  • Patent number: 4329953
    Abstract: A motorcycle antitheft system in which the motorcycle engine is rendered inoperable by mechanical restraint of the crankshaft. The crankshaft is housed in a crankcase which has two sections held together by bolts positioned in recesses in one of the sections. The antitheft system comprises a bore formed in the crankcase, a lock assembly mounted in the bore for axial movement therein between a locked position and an unlocked position, a rigid plunger secured to one end of the lock assembly extending toward the crankshaft and a toothed crankwheel mounted on the crankshaft. When the lock assembly is in the locked position, it passes through one of the bolt recesses in the crankcase, thereby blocking access to the bolt and preventing opening of the crankcase. Movement of the assembly to the locked position also extends the plunger into a space between teeth on the crankwheel to thereby prevent rotation of the crankwheel and crankshaft.
    Type: Grant
    Filed: August 29, 1980
    Date of Patent: May 18, 1982
    Assignee: American Honda Motor Co., Inc.
    Inventor: Jon D. Row
  • Patent number: 4300495
    Abstract: An electrically operated disabling system engageable in the ignition or fuel supply support system of an automobile engine, the operation of which is under control of a master control switch for the ignition system, said disabling system includes a normally closed relay switch related to one of the support systems to disable that support system and cause the engine to stop operation when said relay switch is opened, an electrically operated time delay switching device under control of the master control switch and operating to cause the relay switch to open and disable its related support system after operation of the engine for a limited predetermined period of time; and a normally operable on and off switch to selectively put the disabling system into and out of service.
    Type: Grant
    Filed: September 21, 1979
    Date of Patent: November 17, 1981
    Inventors: Carlos S. Trevino, Isidro S. Trevino
  • Patent number: 4291653
    Abstract: A combustion-engine vehicle includes a starting system which starts the engine in response to one of the vehicle's doors being operated. When the door is opened a circuit is completed from the vehicle's battery through a dome light switch to the ignition coil and to a starter-motor solenoid switch. A vacuum switch coupled to the engine's intake manifold opens the circuit to the starter-motor solenoid switch when it senses that the engine has been started. A door-sensor control connected between the dome light switch and the starter-motor solenoid switch and the ignition coil includes two on/off switches connected in series, with the starter-motor solenoid switch being connected to a downstream terminal of the first on/off switch and the ignition coil being coupled to a downstream terminal of the second on/off switch. The vacuum switch is connected in series in a line to the starter-motor solenoid switch.
    Type: Grant
    Filed: July 19, 1977
    Date of Patent: September 29, 1981
    Inventor: Cleveland T. Tucker
  • Patent number: 4159015
    Abstract: A method and a device to prevent unauthorized use of combustion engine driven vehicles, ships, equipment, as well as engines only, including the steps to remove at least one spark plug, to attach a device having an externally threaded part as replacement for the removed spark plug(s), said part having an embracing outside member, which by means of a locking mechanism can be brought into a freely rotatable state in relation to the threaded member, thus preventing removal of same, or, alternatively, bring said members into an interlocked relationship, thus enabling the device to be attached or removed from the engine.
    Type: Grant
    Filed: June 8, 1977
    Date of Patent: June 26, 1979
    Assignee: Telcefo Security Products AB
    Inventors: Raymond J. Gotto, Christer Forsberg
  • Patent number: 4155420
    Abstract: A device for preventing the theft of a motor vehicle employs a casing that encloses the vehicle's distributor in a virtually impenetrable shell. A stack of rotatable discs in the casing must be properly set in the manner of a combination lock to enable the high voltage electrical signals from the distributor to fire the spark plugs of the engine. The discs in the casing are set by dials within the passenger compartment of the vehicle. The discs have contacts on their surfaces which align when the discs are properly set to provide electrical paths from the distributor to electrical connectors outside the casing. The high voltage electrical ignition harness wires for the spark plugs are attached to those outside connectors. A cover is secured to the casing in a manner that enables the casing to be opened only when the discs are aligned in a pre-established relation, which can be different from the relation that enables the engine to be started.
    Type: Grant
    Filed: May 12, 1977
    Date of Patent: May 22, 1979
    Inventor: Clifford Staver
  • Patent number: 4149609
    Abstract: An anti-theft lock for use in automobile ignition systems having an ignition switch and a coil, the lock having a secondary switch, a flexible armoured tube surrounding electrical leads between the secondary switch and the coil, and an armour cap mounted on the coil. This arrangement makes it very difficult to obtain access to the ignition system for jumping the ignition to steal the automobile.
    Type: Grant
    Filed: June 1, 1978
    Date of Patent: April 17, 1979
    Assignee: Sav-Car, Inc.
    Inventor: George W. Flate, Jr.
  • Patent number: 4141332
    Abstract: An encoded electrical control systems for motor vehicle employs an encoder/transmitter that provides an encoded signal and a receiver/decoder which effectuates control of an associated device only upon receipt of a signal containing the code unique to that specific receiver/decoder.For motor vehicle applications, a secure ignition system is acheived by enclosing the encoder/transmitter in a tamperproof housing associated with the ignition switch assembly. The encoded signal is transmitted when the ignition switch is closed. The receiver/decoder is contained in another tamperproof housing adjacent an ignition system component essential to engine operation, and, only upon receipt of the unique, encoded signal from the transmitter, effectuates a necessary electrical connection to this ignition system component. Operation also may be initiated by an electronic lock in place of the conventional ignition switch.
    Type: Grant
    Filed: February 23, 1976
    Date of Patent: February 27, 1979
    Assignee: TRE Corporation
    Inventor: Leopold S. Wyler
  • Patent number: 4133410
    Abstract: A vehicle anti-theft device which when activated by the vehicle user causes the fuel tank to be isolated from the internal combustion engine of the vehicle and simultaneously therewith causes the fuel gauge to register empty, thereby restricting movement of the vehicle upon unauthorized usage and creating the impression that no fuel is available for the vehicle.
    Type: Grant
    Filed: November 2, 1977
    Date of Patent: January 9, 1979
    Inventor: John A. Krusoe
  • Patent number: 4124089
    Abstract: A phantom coil cover comprising a coil housing having at least one opening at the bottom thereof, ignition coils disposed within the housing comprising a high voltage terminal and two low voltage terminals, and a coil housing cover secured to the top end of the coil housing, the housing cover comprising a high voltage terminal connector which is releasably attached to the high voltage terminal of the coils and two phantom low voltage terminals not connected to the coils.
    Type: Grant
    Filed: August 12, 1977
    Date of Patent: November 7, 1978
    Inventor: Hugo Caramagne
  • Patent number: 4084657
    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.
    Type: Grant
    Filed: February 28, 1974
    Date of Patent: April 18, 1978
    Inventors: W. L. Bradley, Bennie W. Frye, Joseph W. Raines
  • Patent number: 4071007
    Abstract: An anti-theft device for a motor vehicle includes a starter-connected ignition switch which has a first accessible terminal, and a second substantially non-accessible terminal connected to a third substantially non-accessible terminal of a voltage dropping means, such as a resistor. A relay has a coil and at least a pair contacts closable by operating the ignition switch, and is connected in series with a circuit breaker, the voltage dropping means, the ignition switch and a voltage source. The circuit breaker trips at a predetermined current setting, and the coil is designed to burn out at a current just exceeding the predetermined current. Periodically openable contact-means actuate the motor vehicle's engine and are energizable by the pair of contacts. The circuit breaker trips upon a thief shorting the accessible terminals, and the relay coil burns out upon the thief shorting the circuit breaker.
    Type: Grant
    Filed: August 24, 1976
    Date of Patent: January 31, 1978
    Inventor: Robert J. Arix
  • Patent number: 4056089
    Abstract: A locking member to block motion of the throttle valve lever, to prevent admission of gasoline to an internal combustion engine; means mounting the locking member upon the carburetor for travel between a throttle valve locking position and a release position; drive means to selectively urge the lock member in travel between the two positions; a housing mounted within the passenger compartment of the vehicle, and containing a locking assembly accessible to a driver to control the lock member; the locking assembly including a slide member slidable in reversible travel to actuate the drive member to urge the lock member in reciprocable travel between the throttle valve locking and release position.
    Type: Grant
    Filed: August 9, 1976
    Date of Patent: November 1, 1977
    Inventor: David P. Ratliff
  • Patent number: 3942605
    Abstract: A removable assembly including an ignition coil container is adapted to be positioned in a receptacle which is mounted upon the bulkhead or near the floor of the driver's compartment of an automobile. This receptacle at one end is provided with a head of insulating material containing peripheral circumferentially-spaced multiple terminal plugs which are connected to the various low tension cables of the automobile engine ignition system and also has a central terminal plug adapted to be connected to a high tension cable. Separably engageable with these terminal plugs are correspondingly-located terminal sockets from which internal connections are made with the removable ignition coil mounted in the container.
    Type: Grant
    Filed: October 3, 1974
    Date of Patent: March 9, 1976
    Inventor: Ernest Burnside