Patents by Inventor Sherman A. Quanbeck

Sherman A. Quanbeck 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).

  • Retractable hitch
    Patent number: 6511090
    Abstract: A retractable hitch is made to mount onto the rear of a towing vehicle, and lower the hitch ball to a desired level. A housing is attached to the towing vehicle, and has side walls and a bottom wall, the hitch bar is slidably mounted in the housing, and slides between a working position wherein an outer end carrying a hitch ball is extended from the vehicle, and a retracted position wherein the hitch ball is inside the housing. A spring-loaded lever holds the hitch ball in its retracted position, and is releasable to let the hitch bar out to its working position.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: January 28, 2003
    Inventor: Sherman A. Quanbeck
  • Retractable hitch
    Publication number: 20020113406
    Abstract: A retractable hitch is made to mount onto the rear of a towing vehicle, and lower the hitch ball to a desired level. A housing is attached to the towing vehicle, and has side walls and a bottom wall, the hitch bar is slidably mounted in the housing, and slides between a working position wherein an outer end carrying a hitch ball is extended from the vehicle, and a retracted position wherein the hitch ball is inside the housing. A spring-loaded lever holds the hitch ball in its retracted position, and is releasable to let the hitch bar out to its working position.
    Type: Application
    Filed: June 8, 2001
    Publication date: August 22, 2002
    Inventors: Sherman A. Quanbeck, Loretta Quanbeck