Patents by Inventor Howard C. Primus

Howard C. Primus 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: 4819978
    Abstract: A grasp force sensor for robotic hands is disclosed. A flexible block is located in the base of each claw through which the grasp force is exerted. The block yields minute parallelogram deflection when the claws are subjected to grasping forces. A parallelogram deflection closely resembles pure translational deflection, whereby the claws remain in substantial alignment with each other during grasping. Strain gauge transducers supply signals which provide precise knowledge of and control over grasp forces.
    Type: Grant
    Filed: June 27, 1986
    Date of Patent: April 11, 1989
    Assignee: California Institute of Technology
    Inventors: Victor D. Scheinman, Antal K. Bejczy, Howard C. Primus
  • Patent number: 4694153
    Abstract: A series of independent parallel pairs of light emitting and detecting diodes for a linear pixel array, which is laterally positioned over an edge-like discontinuity in a workpiece to be scanned, is disclosed. These independent pairs of light emitters and detectors sense along intersecting pairs of separate optical axes. A discontinuity, such as an edge in the sensed workpiece, reflects a detectable difference in the amount of light from that discontinuity in comparison to the amount of light that is reflected on either side of the discontinuity. A sequentially sychronized clamping and sampling circuit detects that difference as an electrical signal which is recovered by circuitry that exhibits an improved signal-to-noise capability for the system.
    Type: Grant
    Filed: October 29, 1985
    Date of Patent: September 15, 1987
    Assignee: California Institute of Technology
    Inventors: Antal K. Bejczy, Howard C. Primus