Patents by Inventor Arnold M. Smith

Arnold M. Smith 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).

  • Ring joint gasket
    Patent number: 4550921
    Abstract: A ring joint gasket for sealing a pair of flanges in a pipe. The gasket fits in a pair of grooves in the flanges and permits the flanges to have face to face contact. The grooves deflect the gasket and create a tight seal to prevent the leakage of process materials from inside the pipe.
    Type: Grant
    Filed: March 12, 1984
    Date of Patent: November 5, 1985
    Inventor: Arnold M. Smith