Patents by Inventor Alexander M. Campbell, Jr.

Alexander M. Campbell, Jr. 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).

  • Compensating nail chuck
    Patent number: 4444348
    Abstract: A compensating nail chuck includes a driving rod (12) having a yieldable force-transmitting member (34) comprised of a belleville-washer spring system which compresses in size in response to a back force on the driving rod created by driving a nail. A main housing (10) of the chuck has freedom of vertical movement on a chuck bar (26) for a distance equal to a tolerance difference to be compensated for.
    Type: Grant
    Filed: February 22, 1982
    Date of Patent: April 24, 1984
    Assignee: Campbell Atlantic, Inc.
    Inventor: Alexander M. Campbell, Jr.