Picking Patents (Class 70/394)
  • Patent number: 11408200
    Abstract: An apparatus and method for digital decoding and deciphering a lock cylinder pin configuration, such as for a Kwikset or a Smart Key lock is disclosed. The digital decoder includes a light source placed inside of the keyhole that eliminates glare from the face of the lock and improves the decoding process. A digital camera is configured to provide an optical view of an interior of the lock cylinder to detect the pin settings for each of a plurality of lock tumbler pins carried by the lock cylinder. The digital camera is configured to provide a live feed displayed on a video screen or recorded for later analysis.
    Type: Grant
    Filed: October 27, 2021
    Date of Patent: August 9, 2022
    Inventors: Keith Capehart, Brian Capehart
  • Patent number: 9836937
    Abstract: This sensor system includes: a sensor that is provided with a sensor cover having an opening formed on one end and a sensor main body which is detachably disposed on an inner portion of the sensor cover; and a detachment tool used to detach the sensor main body from the sensor cover, wherein the sensor includes an attachment structure used to attach the sensor main body to the inner portion of the sensor cover, the detachment tool includes a detachment structure used to detach the sensor main body from the inner portion of the sensor cover, and in the detachment structure, by pushing the detachment tool into the sensor main body from the opening of the sensor cover, the sensor main body is detached from the inner portion of the sensor cover.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: December 5, 2017
    Assignee: Hochiki Corporation
    Inventors: Koichiro Kawaguchi, Masashi Arikawa
  • Patent number: 9309694
    Abstract: A pin tumbler lock pin kit and method of use. According to an embodiment, pin tumbler lock pick kit 10 is generally comprised of a pin lifter 100, a tailpiece manipulator 200, a first guide key 300, a second guide key 400, and a J-hook 500. The present disclosure enables homeowners and professional locksmiths to easily open pin tumbler locks without damaging the lock, without practice or locksmith experience, and in a significant reduced time compared to prior art solutions (typically in 60 seconds or less). Embodiments of the present disclosure enable a user to mechanically manipulate the tumbler pins of a pin tumbler lock, and remove the retaining cap that retains the tumbler pins. With the retaining cap removed the lock set can easily be turned and opened without incurring any damage to the lockset. The unlocked tumbler can be removed and re-keyed for reuse.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: April 12, 2016
    Assignee: CAP POPPER, LLC
    Inventor: Stephen Kirk Prater
  • Patent number: 8776561
    Abstract: A tool kit for unlocking a door knob lock set which bypasses the cylinder and pin pairs which normally must be aligned properly with the proper key. The tool kit includes a pin lifting tool which is used to move the pins so that a forked tool is inserted into the key way, through the cylinder, through an aperture in the end of the cylinder and on to the shaft which must be turned to unlock the lock. The forked tool straddles the shaft and then the forked tool is turned, thereby turning the shaft and unlocking the lock.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: July 15, 2014
    Inventor: James M. Jones
  • Patent number: 8302439
    Abstract: A pin setting key for setting rotational orientations of pins of a lock. The key includes a bow portion and a blade portion for inserting into a keyway. The blade portion has a longitudinal axis and a bow end and a tip end, with a plurality of bitting positions located between the bow and tip ends. Each of the bitting positions corresponds to one of the pins of the plug such that insertion of the blade portion into the keyway aligns the bitting position with one of the pins. Each bitting position includes at least one bitting surface configured to rotate a pin when the contact surface of the pin contacts the bitting surface. Each bitting surface is offset from a central location of the respective bitting position. Each bitting surface has an axis extending generally transverse to the longitudinal axis of the blade.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: November 6, 2012
    Inventors: Marc W. Tobias, Tobias Bluzmanis
  • Publication number: 20120067092
    Abstract: A lock bumping tool includes a key portion. The key portion has a cut length of a maximum depth at the key distal end and a strike portion that surrounds a proximal end of the key. The strike portion extends outwardly in the same plane as the key. When the key portion is placed in a keyway and the strike portion is activated by a planar force, the key portion creates a gap between an upper pin and a lower pin in the keyway allowing for a lock to be turned.
    Type: Application
    Filed: March 25, 2011
    Publication date: March 22, 2012
    Inventor: Brian M. Gomez
  • Patent number: 8087276
    Abstract: A pin tumbler lock releasing method involves cooperatively using keyway insertible and universally configured lift, key and shim devices to raise the pin stacks within a pin tumbler lock to just above the lock's shear line and then rotating the lock's plug element within its outer easing in order to disengage its locking mechanism.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: January 3, 2012
    Inventor: Carl Black
  • Patent number: 8082766
    Abstract: A pin tumbler lock releasing system includes keyway insertible and universally configured lift, key and shim devices that are cooperatively used to raise the pin stacks within a pin tumbler lock to just above the pin tumbler lock's shear line so that the lock's plug element may be rotated within its outer casing in order to disengage its locking mechanism.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: December 27, 2011
    Inventor: Carl Black
  • Patent number: 8001699
    Abstract: An electronic device for impressioning a lock comprises a housing having a key decoder secured to the housing and a connector for connection to electronic circuitry. A key decoder portion extends from the housing for insertion into a keyway. A groove extends along a surface of the key decoder. An insulated conductor is positioned in the groove. An exposed portion serves as a reader of wafers positions in the keyway as the key decoder slides through the keyway. An electrical measuring device is secured to the housing and includes a slidable member including the reader, both of which are connected through a sensor interface included in the housing. When the reader engages and disengages with a wafer, the measuring device transmits electrical signals to the electronic circuitry which mathematically calculates a cut in a key blank for each wafer using stored programs for fitting a key to the lock.
    Type: Grant
    Filed: September 23, 2009
    Date of Patent: August 23, 2011
    Inventor: Stephen Randall
  • Patent number: 8001816
    Abstract: A pin tumbler lock releasing system includes keyway insertible and universally configured lift, key and shim devices that cooperatively work to raise the pin stacks within a pin tumbler lock to just above the pin tumbler lock's shear line so that its plug element may be rotated within its outer casing in order to disengage its locking mechanism.
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: August 23, 2011
    Inventor: Carl Black
  • Patent number: 7895763
    Abstract: The objective of the invention is to allow the user to decipher the cuts (aka. depths) on a key from the lock without disassembling the lock. The current wafer lock readers on the market rely on a sensitive touch to operate and/or do not give the exact depths to recreate a key. Our wafer lock “reader” will give the exact depth of a cut, coming to a definite stop at the reading position for each cut on the key.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: March 1, 2011
    Inventor: Keith Daniel Capehart
  • Publication number: 20100116008
    Abstract: A pin tumbler lock releasing system includes keyway insertible and universally configured lift, key and shim devices that cooperatively work to raise the pin stacks of a pin tumbler lock to just above its shear line so that a its plug element may be rotate within its outer casing in order to disengage it locking mechanism.
    Type: Application
    Filed: November 11, 2009
    Publication date: May 13, 2010
    Inventor: Carl Black
  • Patent number: 7712342
    Abstract: A process for opening a combination lock having a known opening sequence with a tool having a driven portion operable only upon receipt of an authorization, the process including associating the tool's driven portion with the lock such that the driven portion automatically calibrates with the lock irrespective of the initial position of the lock and authorizing the driven portion to proceed through the known lock opening sequence of a predetermined series of clockwise and counterclockwise rotations to unlock the lock. A method of opening a combination lock with a tool, the combination lock having an opening sequence consisting of clockwise and counterclockwise rotations of a non finger manipulable lock opening component, the method including mating the tool with the lock opening component and operating the tool to rotate the lock opening component through a series of clockwise and counterclockwise rotations corresponding to the opening sequence to unlock the lock.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: May 11, 2010
    Assignee: Stanton Concepts Inc.
    Inventors: Robert Loughlin, John Loughlin, Arthur L. Arledge
  • Patent number: 7694542
    Abstract: Disclosed is a system for locking and unlocking a component, where the system comprises a lock adapted to lock a component, the lock capable of being opened by manipulation of a combination mechanism, the lock having a communication apparatus for communicating information related to the opening of the lock with a tool. The system further comprises a tool matable with the lock and adapted to open the lock by manipulation of the combination mechanism, the tool adapted to receive the communicated information related to the opening of the lock from the communication apparatus. Also disclosed are locks and tools suitable for use in such a system, and methods of opening at least one combination lock with a tool.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: April 13, 2010
    Assignee: Stanton Concepts Inc.
    Inventors: Robert Loughlin, John Loughlin, Arthur L. Arledge
  • Patent number: 7685852
    Abstract: A tool for loading pin stack elements into a pin tumbler lock includes a cylindrical shank of diameter similar to the diameter of the lock plug, a loading groove extending along at least a shank portion corresponding to the length of the set of pin chambers and intersecting with the shank axis; a set of parallel loading bores formed in the shank, extending between the loading groove and the outer surface of the shank, each loading bore dimensioned to contain pin stack elements, the loading bores further having a spacing along the shank in a direction parallel to its axis equal to the spacing of the chambers; and a loader element mounted within the loading groove in adjustable positioning with respect to the loading bores, operative for selectable transfer of a pin stack element from each loading bore to a chamber in axial registration therewith.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: March 30, 2010
    Inventor: Rahamim Komemi
  • Patent number: 7614158
    Abstract: The decoding of a lock, such as a pin tumbler type of lock, is completed by utilizing a method that includes the insertion of a key blank or other material with one or more reference indicators on a modifiable surface, into a keyway of the lock. The key blank is inserted until a stopping resistance is detected. Such a resistance occurs when a pin of the lock reaches a shear line position. After such a position is reached a marking is made on the key blank and a measurement is made. The measurement is compared to markings on a novel decoding template to determine the depth of a cut that should be made on an uncut key.
    Type: Grant
    Filed: November 27, 2006
    Date of Patent: November 10, 2009
    Inventor: Michael Thomas Uttaro
  • Publication number: 20090266124
    Abstract: The present invention has the purpose of unlocking the cylinder into the pantographic-type locks and identify the code with no need to disassembly the cylinder, which consists on a pantographic-type key with a channel, where wires with angled curved-ends move with the purpose of aligning the throats set in respect to the cylinder tangent; and the jacket line where the handle of the pantographic-type key and piston are placed to move the wire with angled-ends. To perform the code reading, three metal plates and two labels will be used with the representation of the printed throats levels.
    Type: Application
    Filed: September 6, 2007
    Publication date: October 29, 2009
    Inventor: Abel Ferreira Dos Santos
  • Publication number: 20090139288
    Abstract: The invention is a device for opening a pin tumbler type of lock, wherein the pin tumbler type of lock has a number of driver pins and a number of key pins, each of the key pins aligned with one of the driver pins. The device has a housing with a key end and a spring end. A spring inside the housing is located at the spring end of the housing. A slide has a first end fitting inside the housing and abutting an end of the spring. A trigger mechanism is attached to the housing and engages the slide. A key holder is attached to a second end of the slide. A bottom cut key is inserted into the key holder.
    Type: Application
    Filed: December 3, 2008
    Publication date: June 4, 2009
    Inventor: Richard Pettey
  • Patent number: 7243437
    Abstract: An electronic device includes a housing and a catheter having a proximal end seated within the housing and a distal end positioned to an exterior thereof. The catheter distal end has an arcuate shape, assisting the user to scan an internal plug cavity, and a cylindrical cross-section provided with a suitable diameter such that the catheter can be probed through a lock plug without contacting pin pairs. A mechanism is included for detecting a point where the pins come together and line up with a shear line. LEDs are coupled to the detecting mechanism and are illuminated when the catheter is displaced along the lower and upper pin pairs. A mechanism is included for automatically adjusting the catheter's position as the point of each of pin pair is detected. A mechanism is included for displaying numeric values on the housing that correspond to the points identified by the detecting mechanism.
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: July 17, 2007
    Inventor: Armando Estrada
  • Patent number: 6931898
    Abstract: A tool for unlocking a locking cylinder, with a tumbler consisting of a plurality of spring-loaded locking bodes that can be displaced crosswise to the rotational axis of the locking cylinder. The tool comprises a rotating part (1) provided with two driver noses (10) on its cylinder side end, which can be inserted into the keyway. The tool furthermore comprises a sliding part (4) that is positioned such that it is connected form-locking to the rotating part 91) in the rotating direction and axially movable in the axial direction and has a flat sensing element (6) on the cylinder-side end that can be inserted into the keyway. The cross-sectional profile of the sensing element corresponds at least in some sections to the cross-sectional profile of the keyway, wherein at least one sensing body (9) for displacing the locking body inside the locking cylinder is assigned to the sensing element.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: August 23, 2005
    Inventor: Adalbert Wendt
  • Patent number: 6722172
    Abstract: An apparatus for decoding locks having a series of parallel spring-urged slideable members includes a probe device having the general contour of a key expected to fit the lock. The probe device has a shank portion having straight upper and lower edges. A series of thin force sensors supplied with electrical current is attached to at least the upper edge of the shank in a spaced apart relationship corresponding to the spacing of the slideable members. When the probe device is inserted into the lock, the spring associated with each slideable member exerts a force upon the corresponding sensor which is proportionate to the requisite travel distance of the slideable member. Such force is converted by the sensor to an appropriate electrical output which is routed to an electronic monitor that displays the ascertained travel distance for each slideable member.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: April 20, 2004
    Inventors: Albert Pinkhasov, Pinkhas Pinkhasov
  • Publication number: 20030159480
    Abstract: An apparatus for decoding locks having a series of parallel spring-urged slideable members includes a probe device having the general contour of a key expected to fit the lock. The probe device has a shank portion having straight upper and lower edges. A series of thin force sensors supplied with electrical current is attached to at least the upper edge of the shank in a spaced apart relationship corresponding to the spacing of the slideable members. When the probe device is inserted into the lock, the spring associated with each slideable member exerts a force upon the corresponding sensor which is proportionate to the requisite travel distance of the slideable member. Such force is converted by the sensor to an appropriate electrical output which is routed to an electronic monitor that displays the ascertained travel distance for each slideable member.
    Type: Application
    Filed: February 21, 2003
    Publication date: August 28, 2003
    Inventors: Albert Pinkhasov, Pinkhas Pinkhasov
  • Publication number: 20030101782
    Abstract: The invention relates to a tool for unlocking a locking cylinder, with a tumbler consisting of a plurality of spring-loaded locking bodies that can be displaced crosswise to the rotational axis of the locking cylinder. The tool comprises a rotating part (1) provided with two driver noses (10) on its cylinder side end, which can be inserted into the keyway. The tool furthermore comprises a sliding part (4) that is positioned such that it is connected form-locking to the rotating part (1) in rotating direction and axially movable in axial direction and has a flat sensing element (6) on the cylinder-side end that can be inserted into the keyway. The cross-sectional profile of the sensing element corresponds at least in some sections to the cross-sectional profile of the keyway, wherein at least one sensing body (9) for displacing the locking body inside the locking cylinder is assigned to the sensing element.
    Type: Application
    Filed: September 4, 2002
    Publication date: June 5, 2003
    Inventor: Adalbert Wendt
  • Patent number: 6425274
    Abstract: This invention pertains to the lock cylinder of a rekeyable padlock. According to a preferred embodiment of the present invention, a rekeyable padlock is provided with a lock cylinder formed within. The lock cylinder includes a cylindrical core formed to receive a key and an outer casing formed around the core. A viewing opening is formed within the casing wall, the viewing opening allowing access to pin openings formed within the core to receive selected pins. The viewing opening is shaped such that it provides a viewing area larger than the pin openings, thereby allowing greater visibility when the pins are placed within the pin openings. The advantages of this viewing opening include greater ease in placing the pins into the pin openings and easier detection when a selected pin is the wrong length and does not sit flush within the lock cylinder core.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: July 30, 2002
    Assignee: Abus USA
    Inventors: Daniel A. Laitala, Grant T. Laitala
  • Patent number: 6382007
    Abstract: A system for decoding locks having a sequence of spring-urged sliding members such as tumbler pins or wafers includes a probe device having the general contour of a key having a head portion and a straight shank fabricated of electrically insulative material and terminating in a tip portion having an oblique ramp surface. A series of spaced apart electrical conductors embedded within the shank in parallel relationship extend from the head portion to the ramp surface where they emerge as electrical contacts. An electrical circuit which includes an electronic monitoring and display apparatus detects when a given sliding member touches a most distant electrical contact, thereby representing a travel distance. The travel distance is correlated with a particular pin or wafer to produce the key code for the lock.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: May 7, 2002
    Inventor: Jesse M. Wright
  • Patent number: 6230529
    Abstract: A tool is disclosed for opening tubular locks in which a tubular key is receivable. The tool includes a plurality of probes that are releasably retained and secured in a given position to align the shear points in the lock in an opening position. The probes can be ergonomically and individually manipulated and have a course and a fine adjustment, such that the shear point of each tumbler can be easily and efficiently determined. Once the shear point is determined, the probe may be fixed in the position to maintain each tumbler driver.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: May 15, 2001
    Inventor: Kenneth E. Persson
  • Patent number: 6173595
    Abstract: The method and apparatus for picking a lock which utilizes a single blade or pair of elongated thin, rigid, interchangeable blades which are to be inserted within the keyway of the lock. Each of the blades have an upper hiatused surface and can have an off-center sharpened edge so that the sharpened edge will contact the cylindrical lock pins of the lock spaced from the center of each of the lock pins. The off-center sharpened edge could be formed by beveling the side of the blade or by making a cut-out in the blade. The hiatused surface of the blades cause the “V” shaped tips of the cylindrical lock pins of the lock to move lineally with the sharpened edge causing the lock pins to pivot. Instead of a hiatused surface, there could be used one or more deflectable members, tufts of bristles or a brush. The blades are to be driven in a reciprocal manner with one blade moving in and the opposite blade moving out.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: January 16, 2001
    Inventor: Donald R. Hughes
  • Patent number: 6151936
    Abstract: A lock pick kit and method for opening a padlock without the padlock key, through the use of a conventional drill bit and a pair of specialized tools. The lock pick kit comprises a chisel having a shaft with first and second ends, a chisel handle attached to the first end, and a cylindrical protrusion attached to the second end. The second end of the shaft further includes a beveled cutting edge being positioned below and proximate a base portion of the protrusion. The kit further includes a pick having a shaft with first and second ends, a pick handle attached to the first end of the pick, with the pick handle configured to bend at a right angle to the longitudinal axis of the shaft, at its midpoint, an elongated tab extending from the second end of the pick at a right angle to the longitudinal axis of the shaft and a cylindrical protrusion extending from a free end of the elongated tab parallel to the axis of the shaft.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: November 28, 2000
    Inventor: Donald Lee Randall
  • Patent number: 6148652
    Abstract: A lock picking tool for a high security four-track disc tumbler lock, the tool probing all four tracks simultaneously.
    Type: Grant
    Filed: June 7, 1999
    Date of Patent: November 21, 2000
    Inventors: Mark A. Magini, Michael K. Bradlee
  • Patent number: 6138486
    Abstract: The method and apparatus for picking a lock which utilizes a single blade or pair of elongated thin, rigid, interchangeable blades which are to be inserted within the keyway of the lock. Each of the blades have an upper hiatused surface and can have an off-center sharpened edge so that the sharpened edge will contact the cylindrical lock pins of the lock spaced from the center of each of the lock pins. The off-center sharpened edge could be formed by beveling the side of the blade or by making a cut-out in the blade. The hiatused surface of the blades cause the lock pins of the lock to move lineally with the sharpened edge causing the lock pins to pivot. Instead of a hiatused surface, there could be used one or more deflectable members, tufts of bristles or a brush. The blades are to be driven in a reciprocal manner with one blade moving in and the opposite blade moving out.
    Type: Grant
    Filed: August 6, 1999
    Date of Patent: October 31, 2000
    Inventor: Donald R. Hughes
  • Patent number: 6134928
    Abstract: A method and apparatus for decoding locks having a guide member, an alignment member, a reader, and a recording medium, which a guide member is inserted into a lock to open the lock to receive an alignment member which aligns the tumbler members of a lock, thereby permitting a reader to be inserted into the lock, and withdrawn therefrom to cause a displacement of a pivotally connected reader arm which records an image of the lock profile on a recording medium.
    Type: Grant
    Filed: September 10, 1998
    Date of Patent: October 24, 2000
    Inventor: Samuel Kang
  • Patent number: 6082159
    Abstract: A compact lock pick assembly constructed and configured to be carried in a shirt pocket comprising the combination of a lock pick tool that is retractable into a generally tubular handle and a tension tool mounted on the tubular handle to act as a pocket clip is disclosed.
    Type: Grant
    Filed: August 19, 1996
    Date of Patent: July 4, 2000
    Inventor: Ernest F. Larsen
  • Patent number: 6041629
    Abstract: The method and apparatus for picking a lock which utilizes a single blade or pair of elongated thin, rigid, interchangeable blades which are to be inserted within the keyway of the lock. Each of the blades have an upper hiatused surface and can have an off-center sharpened edge so that the sharpened edge will contact the cylindrical lock pins of the lock spaced from the center of each of the lock pins. The off-center sharpened edge could be formed by beveling the side of the blade or by making a cutout in the blade. The hiatused surface of the blades cause the lock pins of the lock to move lineally with the sharpened edge causing the lock pins to pivot. Instead of a hiatused surface, there could be used one or more deflectable members, tufts of bristles or a brush. The blades are to be driven in a reciprocal manner with one blade moving in and the opposite blade moving out.
    Type: Grant
    Filed: July 16, 1999
    Date of Patent: March 28, 2000
    Inventor: Donald R. Hughes
  • Patent number: 5987946
    Abstract: Method and apparatus for non-destructively picking locks which normally are operated by keys, such locks capable of having twisting tumbler pins and sidebars. The method requires that: the pins be raised high in the keyway; the plug be axially bored by a thin drill which enters through a low portion of the keyway, the rear end of the drilled bore opening to the bolt cam operator; the drill bit be removed from the bore; and then the bolt cam operator be directly turned to shift open the bolt. This method does not decode the tumblers nor release any sidebar. The preferred apparatus comprises a pin raiser tool, which is self-retaining due to bias on the pins, which is transmitted to the handle of this tool; and a torquing tool, which is passed through the bore and has a blade which seats in the cam operator for turning the operator to shift open the lock bolt. A unique safety shield can be installed on the tailpiece to prevent picking by the method of this invention.
    Type: Grant
    Filed: August 15, 1997
    Date of Patent: November 23, 1999
    Inventor: James A. Watts
  • Patent number: 5956984
    Abstract: The method and apparatus for picking a lock which utilizes a single blade or pair of elongated thin, rigid, interchangeable blades which are to be inserted within the keyway of the lock. Each of the blades have an upper hiatused surface and can have an off-center sharpened edge so that the sharpened edge will contact the cylindrical lock pins of the lock spaced from the center of each of the lock pins. The off-center sharpened edge could be formed by beveling the side of the blade or by making a cut-out in the blade. The hiatused surface of the blades cause the lock pins of the lock to move lineally with the sharpened edge causing the lock pins to pivot. Instead of a hiatused surface, there could be used one or more deflectable members, tufts of bristles or a brush. The blades are to be driven in a reciprocal manner with one blade moving in and the opposite blade moving out.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: September 28, 1999
    Inventor: Donald R. Hughes
  • Patent number: 5921122
    Abstract: A lock assembly includes a main body having a compartment defined in a lower part thereof for removably receiving a lock core therein. The main body further includes a number of upper chambers defined in an upper part thereof, each upper chamber including an upper pin tumbler received therein. The lock core includes a number of lower chambers defined therein, each lower chamber including a lower pin tumbler received therein. The main body further includes a number of longitudinally spaced holes defined in a periphery thereof each hole being communicated with a lower end of an associated upper chamber. A member has a number of branches, wherein each branch is removably inserted into an associated hole to support the associated upper pin tumbler during removal of the lock core.
    Type: Grant
    Filed: May 27, 1998
    Date of Patent: July 13, 1999
    Assignee: Taiwan Fu Hsing Industry Co. Ltd.
    Inventor: Jesse Lin
  • Patent number: 5701773
    Abstract: Apparatus for opening, or removing without damage, automotive side-bar type ignition locks, comprises a combination tool with a plurality of projections extending horizontally and forwardly from the combination tool to engage the lock's keyway, at least one balanced pair of recesses in the lock's face, or, optionally, when the tool is used as a lock-remover, the inner walls of the lock's hollow wing-nut cylinder cap. When used as a lock-forcing opener, the combination tool is placed in position on the lock cylinder's face and a conventional wrench gripping the tool's hexagonally-shaped portion is turned to create torque applied by the tool's projections against the walls of the lock's recesses, forcing the lock cylinder to turn to its ON position and start the vehicle's engine.
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: December 30, 1997
    Inventor: Frank Markisello
  • Patent number: 5454245
    Abstract: Apparatus and method for removing side-bar automotive ignition locks without damage, a tool kit being provided containing a drill guide block, an adjustably molted drill bit, a side-bar pressure tool for insertion into the access opening created by the drill bit, and a wafer pressure tool for insertion into the keyway of the ignition lock to urge the lock wafer elements into alignment at the same time the side-bar pressure is being applied, causing retraction of the side-bar and consequent opening of the lock to permit its removal. Plugs are provided to reseal the drilled access opening.
    Type: Grant
    Filed: May 23, 1994
    Date of Patent: October 3, 1995
    Inventor: Frank Markisello
  • Patent number: 5402661
    Abstract: A tool to start ignition side bar type lock cylinders in all Ford vehicles is provided and consists of using a tool which has a guide key to hold the tool in place, two tabs to cut into the face of the cylinder, a hexagonal shape at rear of tool to accept a wrench for turning the cylinder to the ON position and thus start the vehicle.
    Type: Grant
    Filed: March 13, 1992
    Date of Patent: April 4, 1995
    Inventor: Frank Markisello
  • Patent number: 5355701
    Abstract: Methods and apparatus for decoding pin tumbler locks, and more specifically, a mechanical key card lock. To determine the length and weight of a given pin tumbler, a probe is inserted within the lock, comprised of one or a matrix of many force sensing resistors. The probe will respond to variations in pressure and tension of each pin tumbler, and will thus provide a range of output resistances, directly related to the pressure exerted upon the sensor by a particular pin tumbler. The outputs of the sensors are then electronically sensed and recorded so that a duplicate key can be produced.
    Type: Grant
    Filed: March 1, 1993
    Date of Patent: October 18, 1994
    Inventor: Marc W. Tobias
  • Patent number: 5325691
    Abstract: The present invention relates to lock picking and decoding tools and a method of using the same. The lock decoding tools comprise a torquing tool, a picking tool, and decoding tools. The method comprises using the torquing tool to bias the locking bar out of a notch in the inner wall of the cylinder housing, picking the tumblers using the picking tool, turning the cylinder lock slightly so as to permit the torquing tool to be removed, turning the lock cylinder to the "ON" position, and decoding the cylinder lock using the decoding tools.
    Type: Grant
    Filed: January 19, 1993
    Date of Patent: July 5, 1994
    Assignee: HSL Marketing, Inc.
    Inventor: Donald J. Embry
  • Patent number: 5224365
    Abstract: A side bar lock decoder has a pair of guide plates laminarly arranged between a pair of side plates. Key portions of the plates have notches spaced for alignment with the lock wafers. Narrow passages between the guide plates extend from each of the notches to the edges of the base portions of the plates at approximately normal fingertip positions when the base portions are hand held. Wires slidably disposed in each of the passages extend from an outer end of each of the notches beyond the grip edges. One end of the wires abuts one of the wafers when the wafers and the notches are aligned. Springs, bias each of the wires toward a threshold reference position within the notches. Plungers, one connected to each of the wires, extend beyond the grip edges, are independently biased away from their respective edges by the springs. One or more housings secured to the laminar plates have at least one chamber therein for guiding the movement of each of the plungers during manipulation.
    Type: Grant
    Filed: August 10, 1992
    Date of Patent: July 6, 1993
    Inventor: Jerry L. Dobbs
  • Patent number: 5172578
    Abstract: An apparatus for determining lengths of locking elements in locks including a key head and wires maintained on the key head and extendable into the lock cylinder for measuring lengths of the lock pins. The distance that the wires will go into the depth of lock can be used to determine the depth of the furrows or the cuts of the needed key. The advantage of this invention is that one can duplicate a key which has been lost, without damaging the lock, or moving it out of the door. In addition to that this mechanism is also used as a "lock-picker" in order that one can lock or unlock a door when the keys have been lost. The invention operates in two different ways and for two different purposes. The first one is to duplicate a key which has been lost. The second one is to lock or unlock a door for different reasons, e.g. when the key has been lost, or when it is still inside the car or the house while the door is still locked.
    Type: Grant
    Filed: November 1, 1991
    Date of Patent: December 22, 1992
    Inventor: Spiridon A. Bitzios
  • Patent number: 5133202
    Abstract: A decoder is provided for disk tumble locks which is electrically rather than mechanically operated. A plurality of separate keys each has a blade sufficiently long to extend through all of the disks in the lock. At least one cut is provided in the blade of each key. The depth of the cut in each key is different, the cut of each key being coordinated to a different depth of disk from among the known alternative disk depths for the given tuumbler lock to be decoded. The base surface of each cut contains discrete electrical contact connected by a discrete conductor to a point on the key which is externally accessible when the key is fully inserted into the lock. Each contact is positioned on its key so that, when the key is inserted into the lock keyway, an electrically conductive circuit is completed by the disk if the depth of the disk corresponds to or exceeds the depth of the cut.
    Type: Grant
    Filed: May 20, 1991
    Date of Patent: July 28, 1992
    Inventor: Maurice Grant
  • Patent number: 4836000
    Abstract: The present invention relates to a lever tumbler lock in which the scrape marks caused by the key bit as it displaces the various tumblers will not be completely informative of the configuration of the key bit.According to the invention the lock includes a device which as a key bit (13) inserted into the lock housing (1) is turned will scrape against at least a part of the cam surface (10) of at least one tumbler (2) such as to create on this cam surface or those cam surfaces scrape marks which cover the scrape marks caused by corresponding cams on the key bit when the key is turned, at least at the beginning and the end of these scrape marks.
    Type: Grant
    Filed: May 26, 1988
    Date of Patent: June 6, 1989
    Assignee: AB Fas Lasfabrik
    Inventor: Jorma Hirvi
  • Patent number: 4817406
    Abstract: An impressioning key for making an impression of the tumblers of a lock comprises a key blank having a main portion of relatively hard material with a recess in an upper forward edge portion. A tumbler engaging portion consisting substantially wholly of lead is secured to the main portion in the recess, the tumbler engaging portion being a solid pre-shaped body of lead filling the recess.
    Type: Grant
    Filed: August 7, 1987
    Date of Patent: April 4, 1989
    Inventor: William E. Martin
  • Patent number: 4667494
    Abstract: A tool set and a method of opening and decoding a side bar lock employing wafer type tumblers. A spring compressor tool configured for insertion into the lock mechanism keyway raises all the tumblers to a radially outward position and compresses the springs that normally bias the tumblers inwardly. A spring retainer tool inserted into the keyway with the spring compressor tool engages the tumbler springs to retain the springs in a compressed position but frees the tumblers for movement. A tumbler adjusting tool is inserted to grasp the tumblers, and move the tumblers to a position where the lock mechanism can be opened. A decoding tool is inserted to measure the radial position of each tumbler and provide a number which can be used to make a new key. A dust cover holding tool is provided to hold open the spring actuated dust cover.
    Type: Grant
    Filed: January 13, 1986
    Date of Patent: May 26, 1987
    Inventor: Douglas W. Joosten
  • Patent number: 4617813
    Abstract: A picking tool adapted to open a cylinder lock of the axial pin tumbler type having its tumblers arranged in a coplanar configuration, includes a planar torquing core insertable into the lock keyway in a longitudinal direction, a plurality of longitudinal guideway channels formed on opposing faces of the core, and respective tumbler probes longitudinally reciprocable in the channels. A holder, which acts as a handle for manipulating the picking tool, also serves as a housing surrounding the core and the probes. The holder is formed with a pair of radial openings in opposite sides thereof which receive respective brake segments for exerting a frictional drag on the probes. An adjustable hoop clamp surrounds the brake segments for manually adjusting the frictional drag, so that the proper tumbler displacement action can be achieved. Setscrews are threaded into the body of the holder for clamping the probes in their final tumbler-displacing positions.
    Type: Grant
    Filed: July 29, 1982
    Date of Patent: October 21, 1986
    Assignee: Chicago Lock Co.
    Inventors: Walter S. Christopher, Robert T. Kriskovich, Robert L. Steinbach
  • Patent number: 4606204
    Abstract: A lock opening method and mechanism for opening locks in minimum time while requiring very little skill on the part of the operator. The mechanism includes an adapter assembly, a tension arm and an oscillator unit. The assembly asserts rotary force to a lock cylindrical plug. This causes the lock pins to release and allowing the lock to be opened.
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: August 19, 1986
    Inventor: Robert G. Cooke, Jr.
  • Patent number: 4535546
    Abstract: Locksmith tool apparatus determines the length of a locking element in a lock by engaging a locking element inside a lock and by moving the element to compress a compression spring to a known minimum length and by measuring the distance moved. By subtracting the distance the element is moved from known dimensions, the length of the locking element is determined.
    Type: Grant
    Filed: February 27, 1984
    Date of Patent: August 20, 1985
    Inventor: Rodney D. Smith