Patents by Inventor Robert Gary Humphries

Robert Gary Humphries 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).

  • Latex elastomer based oil seals and process thereof
    Patent number: 6344512
    Abstract: A heel stock portion of an oil seal may be made of latex elastomer based compounds instead of volatile organic compounds. One embodiment of a latex elastomer based compound may comprise approximately 5-35% aramid fiber, approximately 10-20% metal oxide, approximately 10-60% carbon filler, approximately 1-5% curative, approximately 20-50% latex flouroelastomer, and approximately 10-50% mineral filler by weight based on the weight of the heel stock part of an oil seal. Another embodiment of a latex elastomer based compound may comprise approximately 10-40% aramid fiber, approximately 2-10% mineral fiber, approximately 2-10% carbon filler, approximately 20-40% mineral filler, approximately 2-10% metal oxide, approximately 5-20% glass fiber, approximately 1-5% curative accelerator, approximately 1-5% curative, approximately 1-5% anti-oxidant, approximately 10-40% latex nitrile elastomer, and approximately 1-5% polyester fiber by weight based on the weight of the heel stock part of an oil seal.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: February 5, 2002
    Assignee: J. M. Clipper, Inc.
    Inventors: Steven M. Suggs, Steven Kristopher Kolb, Robert Gary Humphries