Patents by Inventor Norman B. Howells

Norman B. Howells 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).

  • Friction disc for clutches and the like
    Patent number: 3972400
    Abstract: An oil cooled friction disc for clutches and the like comprising a plate member having a substantially flat annular configuration with a friction facing disposed on each side thereof. Each of said faces has a plurality of straight grooves of substantially constant cross section extending from the inner part of said facing to the periphery thereof and formed to carry cooling oil therein. At least half of the grooves are angularly disposed from the radius intersecting the inlet end with the angle being from about 105.degree. to about 115.degree., and the remainder of the grooves extend radially.
    Type: Grant
    Filed: August 9, 1974
    Date of Patent: August 3, 1976
    Assignee: Caterpillar Tractor Co.
    Inventor: Norman B. Howells