Patents by Inventor Kenneth G. Bernfeld

Kenneth G. Bernfeld 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).

  • Adaptors for a collet chuck
    Patent number: 4496163
    Abstract: Adaptors for a double taper collet chuck in the form of first and second adaptor rings with inside tapers complementary in shape to collets and outside tapers interfitting with the collet chuck enable a particular collet chuck to handle a wide range of collets. The adaptors thus minimize the need for a changeover for different chuck sizes in multiple machining operations.
    Type: Grant
    Filed: August 3, 1981
    Date of Patent: January 29, 1985
    Inventor: Kenneth G. Bernfeld