Patents by Inventor Alphonso V. Sanchez

Alphonso V. Sanchez 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).

  • Publication number: 20020145271
    Abstract: An improved wheelchair and power booster is disclosed. It employs a drive/brake system incorporated in each main wheel connected to lever arms for propelling the wheelchair by engaging the brake and moving the lever arms either forward or rearward to move the associated main wheel forward or backward. Releasing the brakes allows free wheeling. A parking brake lock loop which is located on the lever on the arm locks the brakes. A single front wheel is utilized when pivoted from a leg foot rest. The front wheel may caster freely or may be controlled directly by a manual steering handle. The main wheels are removable for transport and storage and the frame folds to a compact generally rectangular shape for easy carrying along with the wheels in a passenger vehicle.
    Type: Application
    Filed: January 10, 2002
    Publication date: October 10, 2002
    Inventor: Alphonso V. Sanchez