Patents by Inventor James D. Cayford

James D. Cayford 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).

  • Masking device hub providing two position tape support
    Patent number: 5791586
    Abstract: A tape hub including a support portion defining a peripheral surface around an axis adapted to frictionally receive a cylindrical inner surface of a core wound with tape, and axially spaced radial projections and locating members on the tape hub for positioning a first edge of the length of tape wrapped around the core at either of two discrete tape edge positions axially with respect to the hub. The tape hub is useful on devices that adhere tape along one edge of masking material to afford selecting different amounts of overlap between the tape and the masking material. The tape hub can have a plurality of radially extending hub portions having spaces therebetween and axially extending ribs on the hub portions defining its peripheral surface with the peripheral surface being adapted to frictionally receive the cylindrical inner surface of cores of slightly different inner diameters.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: August 11, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James D. Cayford, Philip V. Sadrakula, Robert H. Heil, Stanley W. Widmer
  • Masking device hub providing two position tape support
    Patent number: 5667626
    Abstract: A tape hub including a support portion defining a peripheral surface around an axis adapted to frictionally receive a cylindrical inner surface of a core wound with tape, and means on the tape hub for positioning a first edge of the length of tape wrapped around the core at either of two discrete tape edge positions axially with respect to the hub. The tape hub is useful on devices that adhere tape along one edge of masking material to afford selecting different amounts of overlap between the tape and the masking material. The tape hub can have a plurality of radially extending hub portions having spaces therebetween and axially extending ribs on the hub portions defining its peripheral surface with the peripheral surface being adapted to frictionally receive the cylindrical inner surface of cores of slightly different inner diameters.
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: September 16, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James D. Cayford, Philip V. Sadrakula, Robert H. Heil, Stanley W. Widmer
  • Surface protecting assembly and method
    Patent number: 5472559
    Abstract: A method for protecting a surface from radiant heat such as for protecting an outer surface portion of an automobile from heat during radiant heating to cure paint on another newly painted outer surface portion of the automobile. Exposed adhesive on tape along one edge of masking material comprising a polyester backing layer with a reflective aluminum coating on one surface is adhered to a surface with the masking material extending between the source of radiant heat and the portion of the surface to be protected from the radiant heat.
    Type: Grant
    Filed: June 13, 1994
    Date of Patent: December 5, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James D. Cayford, Robert J. Petrush