Patents by Inventor John Richard Holmquist

John Richard Holmquist 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: 6115129
    Abstract: To accurately position cargo above a surface, the present invention utilizes a pair of lasers positioned on a cargo pick-up unit that are aligned to produce beam lines that intersect at a known height, h, below the bottom surface of the cargo. As the cargo is lowered onto the surface, the laser lines appear to move towards each other. When the laser lines overlap, an operator knows the cargo is positioned at the height, h, above the surface. To provide an indication of the distance between the cargo and a bulkhead, a laser is positioned at either end of the pick up unit. The laser is aligned to create a diagonal laser line ahead of the cargo. As the pick-up unit approaches the bulkhead, the laser line appears to climb vertically on the bulkhead. When the laser line is shown completely on the bulkhead with no component on the surface below the cargo, the operator knows that the cargo is at a predefined distance, d, away from the bulkhead.
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: September 5, 2000
    Assignee: Weyerhaeuser Company
    Inventors: John Richard Holmquist, Wesley Edward Grenlund