Patents Assigned to Van Dyke Research Corporation
  • Patent number: 3999654
    Abstract: A toner cartridge for a xerographic copier, the cartridge having a flexible closure tongue which may be peeled from the cartridge when the same is in inverted position within the copier. The tongue is constructed of a material which has non-directional shear strength characteristics substantially unaffected by folding, and a tear strength substantially greater than the peel strength of the bond between the tongue and the cartridge, so that the tongue does not tear when it is peeled from the cartridge. The surface friction of the tongue material is sufficiently low so that the tongue may be peeled from the cartridge after the cartridge has been positioned so that the tongue is pressed against the periphery of the toner receptacle within the copier.
    Type: Grant
    Filed: July 18, 1974
    Date of Patent: December 28, 1976
    Assignee: Van Dyke Research Corporation
    Inventor: Maxwell Aaron Pollack
  • Patent number: 3988018
    Abstract: A fully automatic paper sorter designed for use as an accessory to an office copier or copier/duplicator machine. The sorter bins have a concave configuration which takes advantage of paper curl developed in the copier to provide more efficient utilization of available bin space. A speed buffering arrangement permits the sorter to operate with copiers having various speeds of paper movement. A separate paper diverting gate is associated with each paper receiving bin, the gates being activated in succession by a rotating cam stack. A sophisticated paper monitoring and control system detects various types of paper jams, and responds either by shutting down the sorter immediately, or by routing subsequent paper sheets directly to a paper catch tray, depending upon the type of jam involved. When the capacity of the sorter is exceeded, excess sheets are routed to the paper catch tray.
    Type: Grant
    Filed: February 25, 1975
    Date of Patent: October 26, 1976
    Assignee: Van Dyke Research Corporation
    Inventors: Robert Joseph Tusso, Daniel Richard Erny, James Edward Landrith