Patents by Inventor Barbara L. Birrell

Barbara L. Birrell 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).

  • Connection method of a flexible printed circuit board with two printed circuit boards, and electric or electronic component with parts connected by the connection method
    Patent number: 7888604
    Abstract: Provided is a method of connecting conductive traces on one substrate to conductive traces on another substrate using an adhesive containing conductive particles and the resulting article.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: February 15, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Kohichiro Kawate, Andrew C. Lottes, James G. Vana, Jr., Barbara L. Birrell, Alexander W. Barr
  • Connection Method of a Flexible Printed Circuit Board with Two Printed Circuit Boards, and Electric or Electronic Component with Parts Connected by the Connection Method
    Publication number: 20080171182
    Abstract: Provided is a method of connecting conductive traces on one substrate to conductive traces on another substrate using an adhesive containing conductive particles and the resulting article.
    Type: Application
    Filed: April 11, 2006
    Publication date: July 17, 2008
    Inventors: Kohichiro Kawate, Andrew C. Lottes, James G. Vana, Barbara L. Birrell, Alexander W. Barr
  • Optical fiber connector using fiber spring force alignment groove
    Patent number: 5757997
    Abstract: A fiber optic connector comprising a plug and a receptacle uses the spring force supplied by bowing of the plug fiber to maintain a continuous compressive load at the fiber joint located in a fiber-alignment groove. The plug has a holder for securing the plug fiber and a shroud which snaps onto the holder with the plug fiber extending generally straight inside the shroud. The shroud has a slot providing access to the terminal portion of the plug fiber, and a sliding door which selectively covers the slot. The receptacle includes a housing and another fiber holder for securing the receptacle fiber, with a projection or finger attached to the receptacle fiber holder, the projection having the fiber-alignment groove. The finger is oriented within the receptacle housing such that, when the plug is inserted into the receptacle, the finger extends through the slot in the shroud at an oblique angle with respect to the plug axis.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: May 26, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Barbara L. Birrell, Victor J. Borer, Donald G. Doss, Gordon D. Henson, Scott A. Igl, Nicolas A. Lee