Patents by Inventor Richard R. Allman

Richard R. Allman 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).

  • Swivel drop ear elbow fitting
    Publication number: 20030146620
    Abstract: A swivel drop ear elbow fitting includes a threaded nut, a retaining ring, and a hollow elbow adapter. The threaded nut includes a plurality of integrated attachment ears located along an external periphery of the threaded nut. An outer surface of the first portion of the elbow adapter is shaped to receive the retaining ring, which retains the threaded nut on the first portion of the elbow adapter, while allowing the hollow elbow adapter to rotate with respect to the threaded nut.
    Type: Application
    Filed: February 1, 2002
    Publication date: August 7, 2003
    Inventors: Scott C. Young, Richard R. Allman, Thomas O. Mumaw, Gregory A. Reitsma