Patents by Inventor Douglas Wayne Schafer

Douglas Wayne Schafer 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).

  • Nut and bolt sizing tool
    Patent number: 7607237
    Abstract: A tool for nut or bolt sizing, the tool comprising a plurality of relatively thin finger members, at least some of the finger members being provided with a measuring slot or notch which can be used to determine the size of the nut or bolt, and identification means being provided such that the size of the slot or notch can be quite readily determined, the finger members able to move between a first position where the finger members substantially overlie each other and are at least partially restrained into the first position, and a second position where a finger member can be moved to a position where it can be used to size a nut or bolt.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: October 27, 2009
    Inventor: Douglas Wayne Schafer
  • Nut and bolt sizing tool
    Publication number: 20080276475
    Abstract: A tool for nut or bolt sizing, the tool comprising a plurality of relatively thin finger members, at least some of the finger members being provided with a measuring slot or notch which can be used to determine the size of the nut or bolt, and identification means being provided such that the size of the slot or notch can be quite readily determined, the finger members able to move between a first position where the finger members substantially overlie each other and are at least partially restrained into the first position, and a second position where a finger member can be moved to a position where it can be used to size a nut or bolt.
    Type: Application
    Filed: April 4, 2007
    Publication date: November 13, 2008
    Inventor: Douglas Wayne Schafer