Patents by Inventor Arthur Kuehn

Arthur Kuehn 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).

  • Automatic reversing system for shredder
    Patent number: 4495456
    Abstract: An automatic reverse system for a shredder machine automatically causes reversal of the shredder motor when the system becomes jammed. A centrifugal switch connected with a starter winding of the drive motor disconnects power feed thereto when the motor is rotating above a predetermined speed. A manually actuated switching circuit in combination with the centrifugal switch initially energizes the system for forward operation. When a jam occurs, the centrifugal switch together with the switching circuit automatically causes a reversal in the direction of rotation of the motor, the reverse operation continuing until the operator manually actuates a switch to deenergize the system or when an automatic switch halts reverse rotation after a predetermined time period.
    Type: Grant
    Filed: September 23, 1982
    Date of Patent: January 22, 1985
    Assignee: General Binding Corporation
    Inventors: Alfredo J. Vercillo, Arthur Kuehn