Patents by Inventor David R. McCollum

David R. McCollum 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).

  • Magnetoresistive based electronic switch
    Patent number: 6850136
    Abstract: A magnetoresistive-based electronic switching apparatus and method. A housing having a first compartment contains switching electronics and a second compartment contains an actuation assembly. A barrier can separate the first compartment from the second compartment. An actuating magnet can be associated with the actuation assembly within the second compartment. The actuating magnet provides a magnetic field that can activate a magnetoresistive device located within the first compartment. Additionally, a magnetoresistive device responsive to the magnetic field of the actuating magnet can be utilized, wherein the magnetoresistive device located within the first compartment in association with the switching electronics provides a solid-state magnetoresistive switch thereof.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: February 1, 2005
    Assignee: Honeywell International Inc.
    Inventors: David R. McCollum, Wayne L. Ehlers, Michael J. Skarlupka
  • Magnetoresistive based electronic switch
    Publication number: 20040041685
    Abstract: A magnetoresistive-based electronic switching apparatus and method. A housing having a first compartment contains switching electronics and a second compartment contains an actuation assembly. A barrier can separate the first compartment from the second compartment. An actuating magnet can be associated with the actuation assembly within the second compartment. The actuating magnet provides a magnetic field that can activate a magnetoresistive device located within the first compartment. Additionally, a magnetoresistive device responsive to the magnetic field of the actuating magnet can be utilized, wherein the magnetoresistive device located within the first compartment in association with the switching electronics provides a solid-state magnetoresistive switch thereof.
    Type: Application
    Filed: September 4, 2002
    Publication date: March 4, 2004
    Inventors: David R. McCollum, Wayne L. Ehlers, Michael J. Skarlupka