Patents by Inventor David J. Griffin

David J. Griffin 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).

  • Suspenders
    Patent number: 5774899
    Abstract: A suspender, with a collar section adapted to conform to the lower back of the neck of a person, has two side portions connected to the collar section, each side portion having attachment means at the end thereof for securing the suspender to opposite sides of the front of a garment. The collar substantially encircles the neck of the person, and includes a means to clasp the two front ends. The side portions are connected to corner regions of the collar front ends. The new suspender is unique in appearance and function.
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: July 7, 1998
    Inventor: David J. Griffin
  • Suspenders
    Patent number: 5682619
    Abstract: A suspender, with a collar section adapted to conform to the lower back of the neck of a person, has two side portions connected to the collar section, each side portion having attachment means at the end thereof for securing the suspender to opposite sides of the front of a garment. The suspender can be constructed of flexible material with a fold forming two layers and forming attractive lapels of various styles on the side portions. The new suspender is unique in appearance and function.
    Type: Grant
    Filed: October 24, 1996
    Date of Patent: November 4, 1997
    Inventor: David J. Griffin
  • Size applicator
    Patent number: 4674437
    Abstract: The size applicator includes first and second spaced-apart squeeze rolls supported for rotation on a common horizontal axis and having their lower peripheral surface portions at least partially submerged in size solution contained in an open top pan. A single combination immersion and squeeze roll is positioned between the first and second squeeze rolls and on a common horizontal azis with said first and second squeeze rolls. The lower peripheral surface of the combination immersion and squeeze roll is also at least partially submerged in the size solution and pressure engagement is applied between the combination roll and the first and second squeeze rolls to form a pair of yarn squeezing nips therebetween.
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: June 23, 1987
    Assignee: Ira L. Griffin Sons, Inc.
    Inventor: David J. Griffin
  • Building block
    Patent number: 4381619
    Abstract: A substantially rectangular-shaped building block, particularly well adapted for use in a set of identical toy building blocks, having a length, to width, to thickness ratio in the nature of 3 to 2 to 1, and having each of the four corner portions identical in cross-sectional size and shape to an indentation in the center portion of each of the four sides of the rectangle.
    Type: Grant
    Filed: August 4, 1980
    Date of Patent: May 3, 1983
    Inventor: David J. Griffin