Patents by Inventor Ernst R. Welch

Ernst R. Welch 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).

  • Process for producing a disc brake pad
    Patent number: 4924583
    Abstract: A process for manufacturing a disc brake pad in which the friction material is attached to the backing plate mechanically bonded with adhesives and through mechanical attachment to an expanded metal mesh utilizing uncompacted friction material and a compacted friction material preform.
    Type: Grant
    Filed: March 9, 1989
    Date of Patent: May 15, 1990
    Assignee: Abex Corporation
    Inventors: Alan R. Hummel, Ernst R. Welch