Patents by Inventor Peter M. Roberts

Peter M. Roberts 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).

  • Quick-release and positive locking mechanism for use on socket wrenches and on power and impact tools
    Patent number: 4420995
    Abstract: A quick-release and positive locking mechanism, adaptable for use on tools for receiving removable tool sockets, particularly adaptable for use on socket wrenches or power or impact tools. A tool for receiving a removable tool attachment is disclosed, having a drive stud for receiving a removable tool attachment, a first means for normally engaging said tool attachment, a second means for normally selectively releasing said tool attachment, and a third means for positively locking said tool attachment to the drive stud.
    Type: Grant
    Filed: June 5, 1981
    Date of Patent: December 20, 1983
    Inventor: Peter M. Roberts