Patents by Inventor Dana W. Holbrook

Dana W. Holbrook 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: 6767153
    Abstract: A positional arm device is a series of multiple rods connected to each other by a spherical housing and ball joint with a spring-loaded locking piston providing a multiple position holding device serving as an anchor to hold tools in a certain position, and also as a connector between two object where a certain secure fixed position between the two objects is desired. The arm device has a spherical terminal rod, a plurality of intermediate rods and a terminal housing rod connected together by a spherical housing adjustably positioned and locked by a spring-loaded piston shaft engaging a sphere end retained within the housing, the piston shaft lockingly engaging one of a multiplicity of grooved indentations on the surface of the sphere end.
    Type: Grant
    Filed: February 10, 2003
    Date of Patent: July 27, 2004
    Inventor: Dana W. Holbrook
  • Publication number: 20020101015
    Abstract: A clamping apparatus is disclosed which when used with a threaded pressure plate of a pipe clamp and pipe, can clamp two work piece members of any length in perpendicular directions. The clamping apparatus is a jaw adjustable along the length of the pipe clamp pipe and takes the place of the adjustable pressure plate of the pipe clamp. The jaw clamps along an axis perpendicular to the axis of the pole of the pipe clamp pipe.
    Type: Application
    Filed: January 29, 2001
    Publication date: August 1, 2002
    Inventor: Dana W. Holbrook