Patents by Inventor John P. Lefavour

John P. Lefavour 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).

  • Patent number: 5938514
    Abstract: Rapidly releasable attachment of an abrasive disk to a rotary grinder is provided by fitting the disk with a disk retention adapter which clamps onto the disk and is provided with retention means extending from the non-abrasive bearing surface, a also providing a lock-nut assembly for mounting on the drive shaft of the rotary grinder which comprises a number of detents and detent access slots which permit the retention means to be inserted into the slots and, by a simple axial rotation move the retention means into the detents to lock the disk into position.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: August 17, 1999
    Assignee: Norton Company
    Inventors: Rajul N. Amin, John P. Lefavour