Patents by Inventor Robert Duensing

Robert Duensing 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: 20050183255
    Abstract: A system for joining two pipes comprising: a first horseshoe-shaped member which secures to the bell-end of a first PVC pipe, said horseshoe-shaped member having a plurality of chains extending therefrom; a second member comprising a bull-plate which secures to the open end of a second PVC pipe connected to the first pipe, said bull-end plate having two chains extending therefrom, a lever mechanism configured to join the two ends together such that the lever affixes to each of the chains such that the chain of the horseshoe-shaped member is attached to a first end and the second bull-plate chain is attached to the second end on opposite sides of the fulcrum of the lever, such that once said lever is thrust in a first direction, the chains tighten and the pipes are trussed tightly together.
    Type: Application
    Filed: February 20, 2004
    Publication date: August 25, 2005
    Inventor: Robert Duensing