Patents by Inventor Larry R. Grimmer

Larry R. Grimmer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9003845
    Abstract: Lock assembly and method of coding and recoding locks. Some embodiments of a lock include a housing, a lock cylinder, a plurality of tumblers, a plurality of codebars, and a sidebar. Some embodiments of a lock include a housing, a lock cylinder, a plurality of tumblers, a plurality of code blocks, a sidebar, and a codebar.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: April 14, 2015
    Assignee: Master Lock Company LLC
    Inventors: Lucas J. Boesel, Larry R. Grimmer
  • Publication number: 20100050718
    Abstract: Lock assembly and method of coding and recoding locks. Some embodiments of a lock include a housing, a lock cylinder, a plurality of tumblers, a plurality of codebars, and a sidebar. Some embodiments of a lock include a housing, a lock cylinder, a plurality of tumblers, a plurality of code blocks, a sidebar, and a codebar.
    Type: Application
    Filed: November 10, 2009
    Publication date: March 4, 2010
    Inventors: Lucas J. Boesel, Larry R. Grimmer
  • Patent number: 7634930
    Abstract: Lock assembly and method of coding and recoding locks. Some embodiments of a lock include a housing, a lock cylinder, a plurality of tumblers, a plurality of codebars, and a sidebar. Some embodiments of a lock include a housing, a lock cylinder, a plurality of tumblers, a plurality of code blocks, a sidebar, and a codebar.
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: December 22, 2009
    Assignee: STRATTEC Security Corporation
    Inventors: Lucas J. Boesel, Larry R. Grimmer
  • Publication number: 20080282755
    Abstract: A codeable lock, operable by an authorized key, includes a housing defining a longitudinal axis, a lock cylinder positioned within the housing and selectively rotatable relative to the housing about the longitudinal axis, and a sidebar moveable between a locked position, in which at least a portion of the sidebar is engaged with the lock cylinder and the housing to prevent rotation of the lock cylinder relative to the housing, and an unlocked position, in which the sidebar is disengaged from at least one of the housing and the lock cylinder. The codeable lock also includes a codebar positioned within the lock cylinder. The codebar is moveable from an uncoded state to a coded state upon insertion of the authorized key into the lock cylinder and by securing the codebar to the sidebar. The codeable lock further includes a tumbler positioned within the lock cylinder and engaged with the codebar.
    Type: Application
    Filed: April 2, 2008
    Publication date: November 20, 2008
    Inventors: Larry R. Grimmer, Joshua J. Miller, Julie C. Zier, Russell J. Winberg, Anna K. Webb, Lucas Boesel, Steven J. Dimig
  • Patent number: 7111480
    Abstract: Highly preferred embodiments of the present invention have a lock bolt extendible and retractable by movement of a power transmission assembly driven by an actuator and having a cam thereon which cams against the lock bolt to retract the lock bolt and unlock the steering column. In some preferred embodiments, the cam has a curved surface with varying distance from the axis of rotation of the cam or pivot to produce smooth and controlled lock bolt camming action with little to no jarring motion. In order to significantly reduce manufacturing and assembly time and cost, some or all of the power transmission assembly can be assembled prior to installation in the lock assembly frame. More preferably, some or all of the power transmission assembly is integrally formed. Preferably, part or all of the lock assembly can be assembled without turning, flipping, or otherwise re-orienting the lock assembly during assembly.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: September 26, 2006
    Assignee: Strattec Security Corporation
    Inventors: Steven J. Dimig, Larry R. Grimmer, Russell J. Winberg, Michael Malich, Michael P. Baker, Cynthia M. Brey, Brian M. Keller
  • Patent number: 7047778
    Abstract: In some embodiments, lock assemblies are disclosed which have a housing, a barrel, and at least one tumbler. In some cases, the lock is codeable after the lock assembly has been assembled. Although not required, some embodiments can be re-coded to a new code with and without disassembling the lock assembly. The tumbler(s) can be pivotable, while in other embodiments the tumbler(s) move in a substantially linear fashion. The tumbler(s) can be comprised of two pieces or portions, wherein one piece/portion of the tumbler(s) either directly or indirectly engages the coded surface of a key while the other piece/portion is positionable to prevent rotation of the barrel with respect to the housing. In some embodiments, the tumblers are external to the barrel.
    Type: Grant
    Filed: January 3, 2003
    Date of Patent: May 23, 2006
    Assignee: Strattec Security Corporation
    Inventors: Steven J. Dimig, Keith D. Zirtzlaff, Alan J. Ritz, Thomas J. Green, Scott H. Micoley, Scott G. Klos, Brian J. Munzel, Alexandre Y. Reikher, Lucas J. Boesel, Larry R. Grimmer, Russell J. Winberg
  • Publication number: 20040069028
    Abstract: A latch assembly having at least one control element having one path of motion in which a ratchet is moved to an unlatched position and another path of motion in which the ratchet is not so moved, the path of motion taken by the control element dependent upon whether an engagement element is engaged with the control element or disengaged therefrom. Preferably, the control element moves the ratchet by contact with a pawl which itself can be engaged with the ratchet. In a preferred embodiment of the present invention, two or more unlatching inputs are capable of unlatching the latch assembly. However, two or more of these inputs are in series rather than in parallel so that the number of paths ending at the element or device holding the latch in its latched state is preferably fewer than the number of unlatching inputs to the latch assembly.
    Type: Application
    Filed: September 23, 2003
    Publication date: April 15, 2004
    Applicant: STRATTEC SECURITY CORPORATION
    Inventors: Steven J. Dimig, Alan J. Ritz, Kevin G. Clabots, James M. Gruden, Larry R. Grimmer
  • Patent number: 6705140
    Abstract: A latch assembly having at least one control element having one path of motion in which a ratchet is moved to an unlatched position and another path of motion in which the ratchet is not so moved, the path of motion taken by the control element dependent upon whether an engagement element is engaged with the control element or disengaged therefrom. Preferably, the control element moves the ratchet by contact with a pawl which itself can be engaged with the ratchet. In a preferred embodiment of the present invention, two or more unlatching inputs are capable of unlatching the latch assembly. However, two or more of these inputs are in series rather than in parallel so that the number of paths ending at the element or device holding the latch in its latched state is preferably fewer than the number of unlatching inputs to the latch assembly.
    Type: Grant
    Filed: March 9, 2000
    Date of Patent: March 16, 2004
    Assignee: Stratec Security Corporation
    Inventors: Steven J. Dimig, Alan J. Ritz, Kevin G. Clabots, James M. Gruden, Larry R. Grimmer
  • Publication number: 20040031299
    Abstract: Highly preferred embodiments of the present invention have a lock bolt extendible and retractable by movement of a power transmission assembly driven by an actuator and having a cam thereon which cams against the lock bolt to retract the lock bolt and unlock the steering column. In some preferred embodiments, the cam has a curved surface with varying distance from the axis of rotation of the cam or pivot to produce smooth and controlled lock bolt camming action with little to no jarring motion. In order to significantly reduce manufacturing and assembly time and cost, some or all of the power transmission assembly can be assembled prior to installation in the lock assembly frame. More preferably, some or all of the power transmission assembly is integrally formed. Preferably, part or all of the lock assembly can be assembled without turning, flipping, or otherwise re-orienting the lock assembly during assembly.
    Type: Application
    Filed: June 3, 2003
    Publication date: February 19, 2004
    Applicant: STRATTEC SECURITY CORPORATION
    Inventors: Steven J. Dimig, Larry R. Grimmer, Russell J. Winberg, Michael Malich, Michael P. Baker, Cynthia M. Brey, Brian M. Keller
  • Publication number: 20030154753
    Abstract: In some embodiments, lock assemblies are disclosed which have a housing, a barrel, and at least one tumbler. In some cases, the lock is codeable after the lock assembly has been assembled. Although not required, some embodiments can be re-coded to a new code with and without disassembling the lock assembly. The tumbler(s) can be pivotable, while in other embodiments the tumbler(s) move in a substantially linear fashion. The tumbler(s) can be comprised of two pieces or portions, wherein one piece/portion of the tumbler(s) either directly or indirectly engages the coded surface of a key while the other piece/portion is positionable to prevent rotation of the barrel with respect to the housing. In some embodiments, the tumblers are external to the barrel.
    Type: Application
    Filed: January 3, 2003
    Publication date: August 21, 2003
    Inventors: Steven J. Dimig, Keith D. Zirtzlaff, Alan J. Ritz, Thomas J. Green, Scott H. Micoley, Scott G. Klos, Brian J. Munzel, Alexandre Y. Reikher, Lucas J. Boesel, Larry R. Grimmer, Russell J. Winberg
  • Patent number: 6571587
    Abstract: Highly preferred embodiments of the present invention have a lock bolt extendible and retractable by movement of a power transmission assembly driven by an actuator and having a cam thereon which cams against the lock bolt to retract the lock bolt and unlock the steering column. In some preferred embodiments, the cam has a curved surface with varying distance from the axis of rotation of the cam or pivot to produce smooth and controlled lock bolt camming action with little to no jarring motion. In order to significantly reduce manufacturing and assembly time and cost, some or all of the power transmission assembly can be assembled prior to installation in the lock assembly frame. More preferably, some or all of the power transmission assembly is integrally formed. Preferably, part or all of the lock assembly can be assembled without turning, flipping, or otherwise re-orienting the lock assembly during assembly.
    Type: Grant
    Filed: January 9, 2001
    Date of Patent: June 3, 2003
    Assignee: Strattec Security Corporation
    Inventors: Steven J. Dimig, Larry R. Grimmer, Russell J. Winberg, Michael Malich, Michael P. Baker, Cynthia M. Brey, Brian M. Keller
  • Publication number: 20020088257
    Abstract: Highly preferred embodiments of the present invention have a lock bolt extendible and retractable by movement of a power transmission assembly driven by an actuator and having a cam thereon which cams against the lock bolt to retract the lock bolt and unlock the steering column. In some preferred embodiments, the cam has a curved surface with varying distance from the axis of rotation of the cam or pivot to produce smooth and controlled lock bolt camming action with little to no jarring motion. In order to significantly reduce manufacturing and assembly time and cost, some or all of the power transmission assembly can be assembled prior to installation in the lock assembly frame. More preferably, some or all of the power transmission assembly is integrally formed. Preferably, part or all of the lock assembly can be assembled without turning, flipping, or otherwise re-orienting the lock assembly during assembly.
    Type: Application
    Filed: January 9, 2001
    Publication date: July 11, 2002
    Inventors: Steven J. Dimig, Larry R. Grimmer, Russell J. Winberg, Michael Malich, Michael P. Baker, Cynthia M. Brey, Brian M. Keller
  • Patent number: 5836187
    Abstract: An electronic interlock system for a tumblerless lock which utilizes radio frequency identification to enable system operation. The interlock system includes a reader which powers an antenna to generate an electromagnetic field which in turn energizes a small transponder mounted in the key. The transponder transmits a unique identification code back to the reader via the antenna where it is decoded, and if valid enables system operation, but if invalid prevents operation. The antenna is mounted at the forward end of the lock assembly. A unique key retention system and cylinder anti-rotation lock system is also disclosed.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: November 17, 1998
    Assignee: STRATTEC Security Corporation
    Inventors: David C. Janssen, Larry R. Grimmer
  • Patent number: 5457973
    Abstract: A lock and key actuator for actuating a desired controlled component upon insertion of a key into the lock. The actuator includes either a sliding or pivoting member movable between non-actuated and actuated positions. The actuator may include a slidable plunger between the lock and controlled component. The system may be employed as a buzzer actuator on a vehicle ignition lock for signalling that a key is in the lock under certain conditions.
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: October 17, 1995
    Assignee: Strattec Security Corporation
    Inventors: Larry R. Grimmer, William D. Boppre
  • Patent number: 5289705
    Abstract: A device for preventing the undesired rotation of a key and cylinder within a sleeve of an automobile steering column ignition assembly. The device prevents rotation of a key from an off position to a lock position, and the consequent locking of the steering wheel, unless an adjacent button is depressed. Rotation is prevented by interference of the button itself with an abutment formed in a flange projecting from a cap covering the outer end of the cylinder. The flange also retains the button in the assembly.
    Type: Grant
    Filed: May 5, 1993
    Date of Patent: March 1, 1994
    Assignee: Briggs & Stratton Corporation
    Inventor: Larry R. Grimmer
  • Patent number: 5265455
    Abstract: A reversible double-bitted key is reconfigured to permit a cylinder lock and key set to fit in the standard architecture of certain American automobiles. Preferably, the maximum required diameter of the cylinder is maintained under 13 millimeters, permitting the cylinder to be placed in standard instrument panel architecture for many American made vehicles. The minimum width of the key is maintained at approximately 4 millimeters, assuring that the key can withstand the torque requirements of the lock systems. This permits a single key to be used in both the primary and secondary locks. The tumbler is configured such that the minimum distance between the outer edge of the key window in the tumbler and the outer perimeter of the tumbler is greater than the thickness of the tumbler, further assuring that the lock can withstand repeated use without fatigue failure.
    Type: Grant
    Filed: July 6, 1992
    Date of Patent: November 30, 1993
    Assignee: Briggs & Stratton Corp.
    Inventor: Larry R. Grimmer
  • Patent number: 5186031
    Abstract: A cylindrical lock and key set with an electronic interlock circuit includes a self-destruct circuit portion which is intercepted, engaged and destructed by an intercept member when the cylinder is forcibly, axially removed from the lock sleeve. A second intercept member may engage the circuit and destruct it when the cylinder is forcibly rotated. Either or both of the intercept members may be located on the cylinder.
    Type: Grant
    Filed: August 20, 1991
    Date of Patent: February 16, 1993
    Assignee: Briggs & Stratton Corporation
    Inventors: David C. Janssen, Larry R. Grimmer