Patents by Inventor Robert J. Alexander

Robert J. Alexander 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: 5463847
    Abstract: The invention is an egg carton pickup head utilized in a robotic system for packing egg cartons into tight fitting containers. The automated pickup head includes a pair of wings which move linearly, toward or away from each other, three guide wheels affixed to each wing for guiding the movement of a pair of arcuate shaped carton engaging arms. The head further includes a first pair of actuating cylinders for moving the wings toward or away from each other and a second pair of actuating cylinders to actuate and retract the arms in an arcuate path similar to the radius and curvature of the arcuate pickup arms.
    Type: Grant
    Filed: February 8, 1994
    Date of Patent: November 7, 1995
    Assignee: FPS Food Processing Systems, Inc.
    Inventors: Robert J. Alexander, Daniel C. Stanglein
  • Patent number: 4486685
    Abstract: The present invention is an improvement in an electron gun assembly. Such a gun assembly includes a plurality of indirectly heated cathode assemblies and at least two spaced successive electrodes having aligned apertures therein for passage of a plurality of electron beams. The cathode assemblies include a plurality of cathode heaters which are attached to at least two electrically insulating support rods by a plurality of heater bead straps. Each of the heater bead straps includes a main body portion having a distal end and a proximal end. The proximal end has a bifurcated portion comprising a pair of closely spaced apart grasping members for embedment into one of the insulating support rods. At least one member of the pair of grasping members is angulated with respect to the main body portion to increase the retention of the heater bead straps to the insulating support rods.
    Type: Grant
    Filed: May 14, 1982
    Date of Patent: December 4, 1984
    Assignee: RCA Corporation
    Inventors: John R. Hale, Robert J. Alexander
  • Patent number: 4326117
    Abstract: High-strength metal joints are formed by a combined weld-braze technique. A hollow cylindrical metal member is forced into an undersized counterbore in another metal member with a suitable braze metal disposed along the bottom of the counterbore. Force and current applied to the members in an evacuated chamber results in the concurrent formation of the weld along the sides of the counterbore and a braze along the bottom of the counterbore in one continuous operation.
    Type: Grant
    Filed: April 15, 1975
    Date of Patent: April 20, 1982
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: William R. Kanne, Jr., John W. Kelker, Jr., Robert J. Alexander