Patents by Inventor John J. Tarter

John J. Tarter 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).

  • Midwheel drive wheelchair with independent front and rear suspension
    Patent number: 8469383
    Abstract: A wheelchair includes a frame, and a front pivot arm pivotally mounted to the frame at a front pivot point, the front pivot arm having a caster for supporting the frame. A rear pivot arm is pivotally mounted to the frame at a rear pivot point, the rear pivot arm having a caster for supporting the frame. A ground engaging mid-wheel drive wheel is connected to the frame. A linkage connects the front and rear pivot arms to each other in a manner such that an upward or downward rotation of one of the pivot arms about its pivot point causes rotation of the other pivot arm about its pivot point in an opposite rotational direction.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: June 25, 2013
    Assignee: Sunrise Medical (US) LLC
    Inventors: Daniel Z. Zhou, Mark A. Jackson, John J. Tarter, Mark E. Greig, Rex W. Stevens, James M. Koerlin, Samuel D. Traxinger, Allen B. Killebrew
  • MIDWHEEL DRIVE WHEELCHAIR WITH INDEPENDENT FRONT AND REAR SUSPENSION
    Publication number: 20120273283
    Abstract: A wheelchair includes a frame, and a front pivot arm pivotally mounted to the frame at a front pivot point, the front pivot arm having a caster for supporting the frame. A rear pivot arm is pivotally mounted to the frame at a rear pivot point, the rear pivot arm having a caster for supporting the frame. A ground engaging mid-wheel drive wheel is connected to the frame. A linkage connects the front and rear pivot arms to each other in a manner such that an upward or downward rotation of one of the pivot arms about its pivot point causes rotation of the other pivot arm about its pivot point in an opposite rotational direction.
    Type: Application
    Filed: July 3, 2012
    Publication date: November 1, 2012
    Applicant: Sunrise Medical HHG, Inc.
    Inventors: Daniel Z. Zhou, Mark A. Jackson, John J. Tarter, Mark E. Greig, Rex W. Stevens, James M. Koerlin, Samuel D. Traxinger, Allen B. Killebrew
  • Midwheel drive wheelchair with independent front and rear suspension
    Patent number: 8210556
    Abstract: A wheelchair includes a frame, and a front pivot arm pivotally mounted to the frame at a front pivot point, the front pivot arm having a caster for supporting the frame. A rear pivot arm is pivotally mounted to the frame at a rear pivot point, the rear pivot arm having a caster for supporting the frame. A ground engaging mid-wheel drive wheel is connected to the frame. A linkage connects the front and rear pivot arms to each other in a manner such that an upward or downward rotation of one of the pivot arms about its pivot point causes rotation of the other pivot arm about its pivot point in an opposite rotational direction.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: July 3, 2012
    Assignee: Sunrise Medical HHG, Inc.
    Inventors: Daniel Z. Zhou, Mark A. Jackson, John J. Tarter, Mark E. Greig, Rex W. Stevens, James M. Koerlin, Samuel D. Traxinger, Allen B. Killebrew
  • MIDWHEEL DRIVE WHEELCHAIR WITH INDEPENDENT FRONT AND REAR SUSPENSION
    Publication number: 20120138376
    Abstract: A wheelchair includes a frame, and a front pivot arm pivotally mounted to the frame at a front pivot point, the front pivot arm having a caster for supporting the frame. A rear pivot arm is pivotally mounted to the frame at a rear pivot point, the rear pivot arm having a caster for supporting the frame. A ground engaging mid-wheel drive wheel is connected to the frame. A linkage connects the front and rear pivot arms to each other in a manner such that an upward or downward rotation of one of the pivot arms about its pivot point causes rotation of the other pivot arm about its pivot point in an opposite rotational direction.
    Type: Application
    Filed: February 13, 2012
    Publication date: June 7, 2012
    Applicant: SUNRISE MEDICAL HHG INC.
    Inventors: Daniel Z. Zhou, Mark A. Jackson, John J. Tarter, Mark E. Greig, Rex W. Stevens, James M. Koerlin, Samuel D. Traxinger, Allen B. Killebrew
  • Personal mobility vehicle having a pivoting suspension with a torque activated release mechanism
    Patent number: 8113531
    Abstract: A personal mobility vehicle includes an base unit having a frame and front and rear pivot arms pivotally mounted at respective front and rear pivot points. The front and rear pivot arms support casters. A drive unit having a ground engaging mid-wheel drive wheel is connected to the frame. A linkage connects the front and rear pivot arms to each other in a manner such that an upward or downward rotation of one of the pivot arms about its pivot point causes rotation of the other pivot arm about its pivot point in an opposite rotational direction. The base unit may also include a drive unit that is pivotally supported on the base unit by a torque arm and a suspension system that includes a suspension stop. The torque arm selectively disengages the suspension stop to allow movement of the front caster wheel in response to the terrain traversed.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: February 14, 2012
    Assignee: Sunrise Medical HHG, Inc.
    Inventors: Daniel Z. Zhou, Mark A. Jackson, John J. Tarter, Mark E. Greig, Rex W. Stevens, James M. Koerlin, Samuel D. Traxinger, Allen B. Killebrew
  • Midwheel drive wheelchair with independent front and rear suspension
    Patent number: 7896394
    Abstract: A wheelchair includes a frame, and a front pivot arm pivotally mounted to the frame at a front pivot point, the front pivot arm having a caster for supporting the frame. A rear pivot arm is pivotally mounted to the frame at a rear pivot point, the rear pivot arm having a caster for supporting the frame. A ground engaging mid-wheel drive wheel is connected to the frame. A linkage connects the front and rear pivot arms to each other in a manner such that an upward or downward rotation of one of the pivot arms about its pivot point causes rotation of the other pivot arm about its pivot point in an opposite rotational direction.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: March 1, 2011
    Assignee: Sunrise Medical HHG, Inc.
    Inventors: Mark A. Jackson, John J. Tarter, Mark E. Greig, Rex W. Stevens, James M. Koerlin, Samuel D. Traxinger, Daniel Z. Zhou, Allen B. Killebrew