Patents by Inventor Richard H. Raborn

Richard H. Raborn 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).

  • Die components for making pressure relief devices
    Patent number: 7621166
    Abstract: A pressure relief device for venting an internally pressurized container such as an aerosol can has three sections, a concave annular outer area, a circular central area and an annular intermediate area connecting the concave annular area to the circular area. The three sections all have the same thickness. The central area has a center point and an arc shaped score line extending through 132° to 138°, preferably 135°, about an arc center. The arc center is offset from the center point of the circular area by a distance of from about 0.290 inches. The score line has a depth of from 0.010 to 0.012 inches and is trapezoidal in transverse cross section. The intermediate area meets the circular area at an angle greater than 90° and the intermediate area meets the concave annular outer area at an angle greater than 90°.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: November 24, 2009
    Assignee: Illinois Tool Works Inc.
    Inventors: Mark A. Ferreira, Yurij F. Wowczuk, Richard A. Henry, Richard H. Raborn
  • Pressure relief device for aerosol can
    Patent number: 7222757
    Abstract: A pressure relief device for venting an internally pressurized container such as an aerosol can has three sections, a concave annular outer area, a circular central area and an annular intermediate area connecting the concave annular area to the circular area. The three sections all have the same thickness. The central area has a center point and an arc shaped score line extending through 132° to 138°, preferably 135°, about an arc center. The arc center is offset from the center point of the circular area by a distance of from about 0.290 inches. The score line has a depth of from 0.010 to 0.012 inches and is trapezoidal in transverse cross section. The intermediate area meets the circular area at an angle greater than 90° and the intermediate area meets the concave annular outer area at an angle greater than 90°.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: May 29, 2007
    Assignee: Illinois Tool Works Inc.
    Inventors: Mark A. Ferreira, Yurij F. Wowczuk, Richard A. Henry, Richard H. Raborn