Patents Represented by Law Firm Hume, Clment, Brinks, William & Olds, Ltd.
  • Patent number: 4404505
    Abstract: A multiple position programmable movement machine including movable transfer means; means for producing signals indicating the actual position of the transfer means; drive means coupled to the transfer means for moving the transfer means; and programmable electronic control means for the drive means to position the transfer means at a plurality of selected positions. The control includes segmented velocity-position profile means to produce velocity profile outputs in response to actual position signals and modification signal generation means for producing a modification signal at about the final velocity-position segment to correct differences between the actual and selected positions of the transfer means.
    Type: Grant
    Filed: March 3, 1981
    Date of Patent: September 13, 1983
    Assignee: Swanson Systems, Inc.
    Inventors: Douglas L. Swanson, Ronald K. Turk