Patents by Inventor Felton Zimmerman

Felton Zimmerman 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: 8342552
    Abstract: Multiple pivot points on a bicycle frame provide for automatic adjustment of the saddle of the bicycle during usage of the bicycle within a range of positions. The bicycle will normally position the saddle in a neutral position area of the range of positions during steady pedaling over level ground. During sprinting the bicycle will position the saddle in a sprinting position area of the range of positions where the saddle raises and moves forward to maintain contact with the rider to support the rider. During downhill riding the bicycle will position the saddle in a downhill position area of the range of positions where the saddle drops and moves rearward while supporting the rider. A saddle locking assembly permit the rider to prevent the saddle from raising to permit the rider to raise off of the saddle when desired.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: January 1, 2013
    Inventor: Felton Zimmerman
  • Patent number: 7775531
    Abstract: The use of a pivotal coupling on a cart of the wheelbarrow type allows for a downwardly applied pressure to the user ends of the handles to tip the bucket to at least begin the dumping action of the cart. Following the initial downward pressure with the handles still elevationally displaced downward an upward lift applied to the user ends of the handles completes the dumping action of the cart. Use of multiple pivotal axises on the cart provide for an extremely efficient operation. Various enhancements are explained including locking of the orientation of the cart following the initial dump, wheel blocking to prevent rotation of the ground support wheel relative to the bucket during at least a portion of the final dumping action and stabilization enhancement to prevent lateral tipping of the cart during the final dumping action.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: August 17, 2010
    Inventor: Felton Zimmerman
  • Publication number: 20080067767
    Abstract: The use of a pivotal coupling on a cart of the wheelbarrow type allows for a downwardly applied pressure to the user ends of the handles to tip the bucket to at least begin the dumping action of the cart. Following the initial downward pressure with the handles still elevationally displaced downward an upward lift applied to the user ends of the handles completes the dumping action of the cart. Use of multiple pivotal axises on the cart provide for an extremely efficient operation. Various enhancements are explained including locking of the orientation of the cart following the initial dump, wheel blocking to prevent rotation of the ground support wheel relative to the bucket during at least a portion of the final dumping action and stabilization enhancement to prevent lateral tipping of the cart during the final dumping action.
    Type: Application
    Filed: November 19, 2007
    Publication date: March 20, 2008
    Inventor: Felton Zimmerman
  • Patent number: 7296807
    Abstract: The use of a pivotal coupling on a cart of the wheelbarrow type allows for a downwardly applied pressure to the user ends of the handles to tip the bucket to at least begin the dumping action of the cart. Following the initial downward pressure with the handles still elevationally displaced downward an upward lift applied to the user ends of the handles completes the dumping action of the cart. Use of multiple pivotal axises on the cart provide for an extremely efficient operation. Various enhancements are explained including locking of the orientation of the cart following the initial dump, wheel blocking to prevent rotation of the ground support wheel relative to the bucket during at least a portion of the final dumping action and stabilization enhancement to prevent lateral tipping of the cart during the final dumping action.
    Type: Grant
    Filed: February 16, 2005
    Date of Patent: November 20, 2007
    Inventor: Felton Zimmerman
  • Publication number: 20050146102
    Abstract: The use of a pivotal coupling on a cart of the wheelbarrow type allows for a downwardly applied pressure to the user ends of the handles to tip the bucket to at least begin the dumping action of the cart. Following the initial downward pressure with the handles still elevationally displaced downward an upward lift applied to the user ends of the handles completes the dumping action of the cart. Use of multiple pivotal axises on the cart provide for an extremely efficient operation. Various enhancements are explained including locking of the orientation of the cart following the initial dump, wheel blocking to prevent rotation of the ground support wheel relative to the bucket during at least a portion of the final dumping action and stabilization enhancement to prevent lateral tipping of the cart during the final dumping action.
    Type: Application
    Filed: February 16, 2005
    Publication date: July 7, 2005
    Inventor: Felton Zimmerman
  • Patent number: 6886838
    Abstract: The use of a pivotal coupling on a cart of the wheelbarrow type allows for a downwardly applied pressure to the user ends of the handles to tip the bucket to at least begin the dumping action of the cart. Following the initial downward pressure with the handles still elevationally displaced downward an upward lift applied to the user ends of the handles completes the dumping action of the cart. Use of multiple pivotal axises on the cart provide for an extremely efficient operation. Various enhancements are explained including locking of the orientation of the cart following the initial dump, wheel blocking to prevent rotation of the ground support wheel relative to the bucket during at least a portion of the final dumping action and stabilization enhancement to prevent lateral tipping of the cart during the final dumping action.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: May 3, 2005
    Assignee: Zimmco
    Inventor: Felton Zimmerman
  • Patent number: D588323
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: March 10, 2009
    Assignee: Zimmco, Inc.
    Inventor: Felton Zimmerman
  • Patent number: D591022
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: April 21, 2009
    Assignee: Zimmco, Inc.
    Inventor: Felton Zimmerman
  • Patent number: D591023
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: April 21, 2009
    Assignee: Zimmco, Inc.
    Inventor: Felton Zimmerman