Patents by Inventor John H. Zentmyer

John H. Zentmyer 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).

  • Axle coupler with ring recess
    Patent number: 10731742
    Abstract: An axle coupler comprises driver teeth to engage teeth of a corresponding driver; a central aperture having a central axis and a circumference; and the central aperture including axle teeth circumferentially surrounding the central axis; each axle tooth having a first dimensional direction parallel to the central axis; each axle tooth having a second dimensional direction orthogonal to the first dimensional direction; a recess formed in each axle tooth to form a first axle tooth portion and a second axle tooth portion.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: August 4, 2020
    Assignee: Torq-Masters Industries, Inc
    Inventors: Cora Jokinen, John H. Zentmyer
  • AXLE COUPLER WITH RING RECESS
    Publication number: 20190277382
    Abstract: An axle coupler comprises driver teeth to engage teeth of a corresponding driver; a central aperture having a central axis and a circumference; and the central aperture including axle teeth circumferentially surrounding the central axis; each axle tooth having a first dimensional direction parallel to the central axis; each axle tooth having a second dimensional direction orthogonal to the first dimensional direction; a recess formed in each axle tooth to form a first axle tooth portion and a second axle tooth portion.
    Type: Application
    Filed: December 5, 2018
    Publication date: September 12, 2019
    Applicant: Torq-Masters Industries, Inc
    Inventors: Cora Jokinen, John H. Zentmyer
  • Method for locking a differential
    Patent number: 5816971
    Abstract: A locking differential is provided for selectably locking a first axle to a second axle. The locking differential utilizes a dog clutch assembly characterized by two interlocking clutch members positioned between the differential side gears on opposing sides of the differential pinion shaft. The interlocking clutch members have face splines thereon for engaging corresponding face splines formed on the side gears. An actuating mechanism can be selectably activated to force the two interlocking members into engagement with the side gears.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: October 6, 1998
    Assignee: Vehicular Technologies, Inc.
    Inventors: John H. Zentmyer, Mark V. Tyson
  • Electromagnetic ring actuator
    Patent number: 5759126
    Abstract: A locking differential is provided for selectably locking a first axle to a second axle. The locking differential utilizes a dog clutch assembly characterized by two interlocking clutch members positioned between the differential side gears on opposing sides of the differential pinion shaft. The interlocking clutch members have face splines thereon for engaging corresponding face splines formed on the side gears. An actuating mechanism can be selectably activated to force the two interlocking members into engagement with the side gears.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: June 2, 1998
    Assignee: Vehicle Technologies, Inc.
    Inventors: John H. Zentmyer, Mark V. Tyson
  • Locking differential actuator assembly
    Patent number: 5759129
    Abstract: A locking differential is provided for selectably locking a first axle to a second axle. The locking differential utilizes a dog clutch assembly characterized by two interlocking clutch members positioned between the differential side gears on opposing sides of the differential pinion shaft. The interlocking clutch members have face splines thereon for engaging corresponding face splines formed on the side gears. An actuating mechanism can be selectably activated to force the two interlocking members into engagement with the side gears.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: June 2, 1998
    Assignee: Vehicle Technologies, Inc.
    Inventors: John H. Zentmyer, Mark V. Tyson
  • Locking differential
    Patent number: 5637049
    Abstract: A locking differential is provided for selectably locking a first axle to a second axle. The locking differential utilizes a dog clutch assembly characterized by two interlocking clutch members positioned between the differential side gears on opposing sides of the differential pinion shaft. The interlocking clutch members have face splines thereon for engaging corresponding face splines formed on the side gears. An actuating mechanism can be selectably activated to force the two interlocking members into engagement with the side gears.
    Type: Grant
    Filed: October 24, 1995
    Date of Patent: June 10, 1997
    Assignee: Vehicular Technologies, Inc.
    Inventors: John H. Zentmyer, Mark V. Tyson
  • Night stick structure
    Patent number: 4109912
    Abstract: The addition of a dual-acting sleeve enhances the capabilities of a police night stick, or baton, that has a right-angled auxiliary handle. By exercising light hand-grasp pressure on the sleeve the baton can be maneuvered rotatively about the auxiliary handle. By exercising a firm pressure on the sleeve the rotation can be instantly stopped.
    Type: Grant
    Filed: March 17, 1977
    Date of Patent: August 29, 1978
    Inventor: John H. Zentmyer
  • Automatic locking differential
    Patent number: D835165
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: December 4, 2018
    Assignee: Torq-Masters Industries, Inc.
    Inventor: John H. Zentmyer
  • Axle gear
    Patent number: D848497
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: May 14, 2019
    Assignee: Torq-Masters, Inc.
    Inventor: John H. Zentmyer
  • Vehicular differential replacement device
    Patent number: D885450
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: May 26, 2020
    Assignee: Torq-Masters Industries, Inc
    Inventor: John H. Zentmyer
  • Automatic locking differential
    Patent number: D906388
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: December 29, 2020
    Assignee: Torq-Masters Industries, Inc.
    Inventor: John H. Zentmyer