Patents by Inventor Rand J. Eikelberger

Rand J. Eikelberger 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).

  • Contactless linear position sensor
    Patent number: 4088977
    Abstract: A contactless linear position sensor, or potentiometer, which has a linear output characteristic, is constructed with a pair of elongated, hollow cylindrical tubes which are made of magnetically saturable material and are aligned so that their axes form an angle of less than 180.degree., with both of said tubes having at least one conductive wire coupled therewith which is interconnected with the wire that is coupled with the other tube, and a moveable permanent magnet which is formed as a segment of a circular ring with a pair of straight sides that move adjacent to the tubes so that the total volume of the tubes that is magnetically saturated remains substantially constant while the inductance ratio of the tubes varies.
    Type: Grant
    Filed: February 2, 1977
    Date of Patent: May 9, 1978
    Assignee: Illinois Tool Works Inc.
    Inventors: Joseph H. Bowman, Jr., Rand J. Eikelberger, Arnold M. Miller
  • Lens for a combined lens clearance sidemarker and identification lamp
    Patent number: D397633
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: September 1, 1998
    Assignee: Dialight Corporation
    Inventors: Yubo Yang, Chenhua You, Rand J. Eikelberger
  • Lens for clearance sidemarker and identification lamp
    Patent number: D402576
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: December 15, 1998
    Assignee: Dialight Corporation
    Inventors: Yubo Yang, Chenhua You, Rand J. Eikelberger
  • Combined lens for clearance sidemarker and identification lamp
    Patent number: D414712
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: October 5, 1999
    Assignee: Dialight Corporation
    Inventors: Yubo Yang, Chenhua You, Rand J. Eikelberger
  • Combined lens for clearance sidemarker and identification lamp
    Patent number: D421726
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: March 21, 2000
    Assignee: Dialight Corporation
    Inventors: Yubo Yang, Chenhua You, Rand J. Eikelberger