Patents by Inventor Marlene Rene Slopack

Marlene Rene Slopack 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).

  • Swing door operating system
    Patent number: 7600345
    Abstract: A door actuating system has a fractional horsepower motor mounted on the door adjacent its free edge, driving a clutch connected to a duplex capstan pulley that is wrapped by two tensioned flexible static lines, for opening/closing movement ‘along the line’. The motor also drives a gear that engages a rack projecting from the door frame, to displace the door relative to its frame. Rotation of the gear is read by a rotary encoder, which feeds a microprocessor, to continuously monitor the location, speed and direction of motion of the door, for both the ‘on’ and the ‘off’ condition of the electric motor. A latching clip over-rides action of the original door latch.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: October 13, 2009
    Inventor: Marlene Rene Slopack
  • Swing door operating system
    Publication number: 20070271851
    Abstract: A door actuating system has a fractional horsepower motor mounted on the door adjacent its free edge, driving a clutch connected to a duplex capstan pulley that is wrapped by two tensioned flexible static lines, for opening/closing movement ‘along the line’. The motor also drives a gear that engages a rack projecting from the door frame, to displace the door relative to its frame. Rotation of the gear is read by a rotary encoder, which feeds a microprocessor, to continuously monitor the location, speed and direction of motion of the door, for both the ‘on’ and the ‘off’ condition of the electric motor. A latching clip over-rides action of the original door latch.
    Type: Application
    Filed: May 25, 2006
    Publication date: November 29, 2007
    Inventor: Marlene Rene Slopack