Patents by Inventor Patrick S. Pierce

Patrick S. Pierce 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).

  • Utility cart with vacuum adaptor
    Patent number: 5445398
    Abstract: A utility cart is disclosed for holding a collection bag. The device comprises a frame, a support ring, and an integral ring clamp for clamping the rim of the bag to the support ring. The cart may additionally comprise wheels for transporting the cart along the ground, and a pivoting handle for grasping the cart. The cart may be folded for convenient storage. An enclosed cover for the cart with an optional hose attachment for connection to an external vacuum or blower is disclosed.
    Type: Grant
    Filed: March 2, 1994
    Date of Patent: August 29, 1995
    Inventor: Patrick S. Pierce