Patents by Inventor John Grajewski

John Grajewski 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: 6503138
    Abstract: A coin sorting machine (10) has a motor output shaft (31) driving a coin queueing disk (21) and also has a coin sorting assembly (22) having a coin pushing member (24). A power transmission device (32, 34) transmits power from the motor output shaft (31) to a second shaft (36) driving the coin pushing member (24). A coin sensor (26b) senses each coin in a respective denomination as it is sorted into a respective receptacle (17) during a sorting operation. A controller (38) receives signals from the coin sensor (26b) determines a last coin in a bag count limit and generates a braking signal to a braking assembly (37) to stop rotation of the second shaft (36) without directly mechanically braking the motor output shaft (31) or the motor (30).
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: January 7, 2003
    Assignee: De La Rue Cash Systems, Inc.
    Inventors: Myron W. Spoehr, John A. Kressin, John Grajewski, Cory A. Kohls
  • Publication number: 20020123303
    Abstract: A coin sorting machine (10) has a motor output shaft (31) driving a coin queueing disk (21) and also has a coin sorting assembly (22) having a coin pushing member (24). A power transmission device (32, 34) transmits power from the motor output shaft (31) to a second shaft (36) driving the coin pushing member (24). A coin sensor (26b) senses each coin in a respective denomination as it is sorted into a respective receptacle (17) during a sorting operation. A controller (38) receives signals from the coin sensor (26b) determines a last coin in a bag count limit and generates a braking signal to a braking assembly (37) to stop rotation of the second shaft (36) without directly mechanically braking the motor output shaft (31) or the motor (30).
    Type: Application
    Filed: March 5, 2001
    Publication date: September 5, 2002
    Inventors: Myron W. Spoehr, John A. Kressin, John Grajewski, Cory A. Kohls