Patents by Inventor Jack De Kruif

Jack De Kruif 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).

  • Integral deflection washer compressor wheel
    Patent number: 4872817
    Abstract: An apparatus and method are disclosed which ensures that a rotor-shaft assembly is in rotational balance after assembly of the individually balanced components by preventing the creation of any imbalance during assembly. The rotor member is formed with an annular groove about the nose portion at a point near its mounting face, which during assembly is crimped before any shaft bending occurs, thereby eliminating any rotor-shaft imbalance.
    Type: Grant
    Filed: July 19, 1984
    Date of Patent: October 10, 1989
    Assignee: Allied-Signal Inc.
    Inventor: Jack De Kruif