Patents by Inventor Randall E. Campbell

Randall E. Campbell 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: 11941179
    Abstract: A system and method for displaying images of internal anatomy includes an image processing device configured to provide high resolution images of the surgical field from low resolution scans during the procedure. The image processing device digitally manipulates a previously-obtained high resolution baseline image to produce many representative images based on permutations of movement of the baseline image. During the procedure a representative image is selected having an acceptable degree of correlation to the new low resolution image. The selected representative image and the new image are merged to provide a higher resolution image of the surgical field. The image processing device is also configured to provide interactive movement of the displayed image based on movement of the imaging device, and to permit placement of annotations on the displayed image to facilitate communication between the radiology technician and the surgeon.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: March 26, 2024
    Assignee: NuVasive, Inc.
    Inventors: Robert E. Isaacs, Samuel Morris Johnston, David Alexander Skwerer, Randall Graham Campbell
  • Patent number: 6585017
    Abstract: A thickness planer is described having a carriage locking mechanism to minimize vibration and movement of the carriage during the planing operation. Also described is a depth of cut indicator to display the thickness of the material to be removed during the planing operation. A mechanism is also disclosed for facilitating setting the carriage and cutting head to a predetermined height over the base quickly and accurately.
    Type: Grant
    Filed: August 1, 2000
    Date of Patent: July 1, 2003
    Assignee: Emerson Electric Co.
    Inventors: Randall E. Campbell, Paul Eckhoff, Liao Juei-Seng
  • Patent number: 6507986
    Abstract: A blade tool that is useful for removing and installing blades into and out of a cutter head which is rotatably mounted in a thickness planer. The blade tool consists of a handle and a hook portion. This hook portion is designed to pull or pry blades away from the cutter head when removing the blades from the cutter head. The handle of the blade tool defines a curved portion that is designed to press against the edge of the blade when installing the blade into the cutter head. The blade tool may further comprise a magnet coupled inside a cavity at the end of the handle. The magnet is designed to extract the blade away from the cutter head once it has been loosened by the hook portion. In one embodiment, the magnet is a rare earth magnet.
    Type: Grant
    Filed: January 6, 2000
    Date of Patent: January 21, 2003
    Assignee: Emerson Electric Co.
    Inventors: Frank J. Tomiser, Jr., Randall E. Campbell, Paul J. Eckhoff
  • Patent number: D430581
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: September 5, 2000
    Assignee: Emerson Electric, Co.
    Inventors: Randall E. Campbell, Daniel A. Terpstra, Kiyoshi Hoshino
  • Patent number: D432810
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: October 31, 2000
    Assignee: Emerson Electric Co.
    Inventors: Paul J. Eckhoff, Randall E. Campbell, Frank J. Tomiser, Jr., Daniel A. Terpstra