Patents by Inventor Alfred G. Olsen

Alfred G. Olsen 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).

  • Composition railway brake shoe
    Patent number: 4781275
    Abstract: A composition railway brake shoe including a composition body having friction material dispersed therein and a binder formed essentially from rubber and a thermosetting phenolic resin attachable to a metallic back plate. A backing strip is interposed between the back plate and the body and comprises a rubber binder having dispersed therein a high strength and temperature resistant aramid fiber. The back strip and body are molded in the presence of heat to the back plate.
    Type: Grant
    Filed: April 30, 1984
    Date of Patent: November 1, 1988
    Assignee: AMSTED Industries Incorporated
    Inventor: Alfred G. Olsen