Patents by Inventor Walter Thomas Murphy

Walter Thomas Murphy 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).

  • Rubbery bladders from epoxy compositions
    Patent number: 4119592
    Abstract: Rubbery bladders are produced by rotational casting a liquid polymer composition containing (1) an epoxy resin, (2) a liquid carboxyl-terminated polymer, (3) an amine, (4) a dihydric compound, and (5) a plasticizer. In order to obtain the desired flex and tear properties, the equivalent ratio of the other reactants to epoxy must be from about 0.70 to about 1.15. The valve area of the bladder is reinforced with a spun bonded fabric.
    Type: Grant
    Filed: February 25, 1977
    Date of Patent: October 10, 1978
    Assignee: The B. F. Goodrich Company
    Inventor: Walter Thomas Murphy