Patents by Inventor Lawrence Zandstra

Lawrence Zandstra 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: 4887808
    Abstract: An improved compact bill acceptor having a frame provided with transport means for carrying a bill inserted therein along a path from an inlet to the space between a ram and the front opening of a bill box carried by the frame and a compound slide connected between the frame and the ram for reciprocating the ram to drive a positioned bill into the bill box. Preferably the bill box has open sides closed by side panels pivotally mounted on the frame to permit the box to be unloaded through one of the sides.
    Type: Grant
    Filed: June 20, 1988
    Date of Patent: December 19, 1989
    Assignee: Rowe International, Inc.
    Inventors: Donald A. Dekker, Lawrence Zandstra
  • Patent number: 3978958
    Abstract: Apparatus for severing tickets from a supply of connected tickets and for feeding severed tickets individually to a delivery location in response to a credit signal in which an already severed ticket, retained in escrow position at which it blocks the path of light from a source to a photocell, is advanced by first drive rollers energized in response to a credit signal to the delivery area and in which the photocell is energized as the trailing edge of the delivered ticket passes out of the path of light from the source to the photocell to cock a cutter disposed between the supply of tickets and the escrow position and to activate second relatively slower drive rollers to advance a ticket from the supply to the first relatively faster drive rollers which picks up the ticket, pulls it taut, and moves it to a position at which the leading portion thereof interrupts the path of light from the light source to the photocell to deenergize the cutter cocking solenoid, both drive rollers, and the source of illuminati
    Type: Grant
    Filed: October 3, 1974
    Date of Patent: September 7, 1976
    Assignee: Rowe International Inc.
    Inventor: Lawrence Zandstra