Patents by Inventor Douglas J. Christiansen

Douglas J. Christiansen 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).

  • Patent number: 9568308
    Abstract: A calibration standard includes a base and an outside measurement gage block disposed in a recess of the base such that edges and calibration surfaces of the outside measurement gage block are protected by the base and allow access to the calibration surfaces by a caliper. A method for calibrating calipers using the calibration standard is also provided.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: February 14, 2017
    Inventor: Douglas J. Christiansen
  • Publication number: 20150121991
    Abstract: A calibration standard includes a base and an outside measurement gage block disposed in a recess of the base such that edges and calibration surfaces of the outside measurement gage block are protected by the base and allow access to the calibration surfaces by a caliper. A method for calibrating calipers using the calibration standard is also provided.
    Type: Application
    Filed: November 7, 2013
    Publication date: May 7, 2015
    Inventor: Douglas J. Christiansen
  • Patent number: 8602394
    Abstract: A winching apparatus includes a fairlead mounted to a vehicle and a fifth roller mounted below the fairlead that is positioned and sized such that the cable does not contact any portion of the vehicle between the fairlead and the fifth roller when the cable passes from the winch and under the vehicle.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: December 10, 2013
    Inventor: Douglas J. Christiansen
  • Patent number: 8438745
    Abstract: A tape measure calibrator includes a base with a slot with a pull reference surface and a push reference surface, the slot being configured to receive an end hook of a tape measure. The base also includes a pull calibration band on the base with a centerline of the pull calibration band indicating a first distance from the pull reference surface. The base also includes a push calibration band on the base, a centerline of the push calibration band indicating a second distance from the push reference surface, n which the first distance and the second distance are substantially equal.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: May 14, 2013
    Inventor: Douglas J. Christiansen
  • Publication number: 20130042491
    Abstract: A tape measure calibrator includes a base with a slot with a pull reference surface and a push reference surface, the slot being configured to receive an end hook of a tape measure. The base also includes a pull calibration band on the base with a centerline of the pull calibration band indicating a first distance from the pull reference surface. The base also includes a push calibration band on the base, a centerline of the push calibration band indicating a second distance from the push reference surface, n which the first distance and the second distance are substantially equal.
    Type: Application
    Filed: August 18, 2011
    Publication date: February 21, 2013
    Inventor: DOUGLAS J. CHRISTIANSEN
  • Patent number: 8024867
    Abstract: A tape measure calibrator includes a base with a first reference surface and a second reference surface. A pull calibration mark is made on the base which indicates a first distance from the first reference surface. A push calibration mark is also made on the base which indicates a second distance from the second reference surface, in which the first distance and the second distance are substantially equal.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: September 27, 2011
    Inventor: Douglas J. Christiansen
  • Publication number: 20110168961
    Abstract: A winching apparatus includes a fairlead mounted to a vehicle and a fifth roller mounted below the fairlead that is positioned and sized such that the cable does not contact any portion of the vehicle between the fairlead and the fifth roller when the cable passes from the winch and under the vehicle.
    Type: Application
    Filed: January 10, 2011
    Publication date: July 14, 2011
    Inventor: DOUGLAS J. CHRISTIANSEN
  • Publication number: 20100018068
    Abstract: A tape measure calibrator includes a base with a first reference surface and a second reference surface. A pull calibration mark is made on the base which indicates a first distance from the first reference surface. A push calibration mark is also made on the base which indicates a second distance from the second reference surface, in which the first distance and the second distance are substantially equal.
    Type: Application
    Filed: July 17, 2009
    Publication date: January 28, 2010
    Inventor: Douglas J. Christiansen
  • Publication number: 20020073207
    Abstract: A system and method is described for managing communications, including telephone calls, to a user. In one embodiment, the user configures a telephone services provider system (TSPS) to handle incoming calls based upon information stored in a contact management software database. The user may provide a handling code in part of an unused data field in the standard contact management software database. The TSPS interfaces with the contact management software using open application programming interfaces (APIs). The user views and manages communications, including incoming calls, caller contact information, and call histories from a user interface. In one embodiment, the user interface is the standard contact management software interface.
    Type: Application
    Filed: September 28, 2001
    Publication date: June 13, 2002
    Inventors: Ian Widger, Michael B. Fischer, Mark H. Sher, Douglas J. Christiansen