Patents by Inventor Paul Engdahl

Paul Engdahl 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: 7650901
    Abstract: A gas shutoff valve having a ball normally residing in a first seat, wherein sufficient disturbance of the valve causes the ball to escape the first seat and settle into a second seat wherein a flow of gas is blocked. The first seat is on an upper surface of a seating ball held in a base portion of the valve. The seating ball is held in place by a plate and is adjustable to compensate for gas line angles away from vertical. Adjustments to the seating ball may be made using a leveling tool inserted through a tool port in the base portion and inserting into a tool seat in the seating ball.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: January 26, 2010
    Inventor: Paul Engdahl
  • Publication number: 20080099071
    Abstract: A gas shutoff valve having a ball normally residing in a first seat, wherein sufficient disturbance of the valve causes the ball to escape the first seat and settle into a second seat wherein a flow of gas is blocked. The first seat is on an upper surface of a seating ball held in a base portion of the valve. The seating ball is held in place by a plate and is adjustable to compensate for gas line angles away from vertical. Adjustments to the seating ball may be made using a leveling tool inserted through a tool port in the base portion and inserting into a tool seat in the seating ball.
    Type: Application
    Filed: October 27, 2006
    Publication date: May 1, 2008
    Inventor: Paul Engdahl
  • Publication number: 20080099072
    Abstract: A gas shutoff valve having a sensor in cooperation with a magnet to hold a seal mechanism in an open position allowing a flow through a valve body, wherein sufficient disturbance of the valve causes the sensor to sufficiently separate from the magnet to release the seal mechanism to block the flow of gas through the valve. The sensor resides in a sensor housing and means are provided to level the sensor housing to provide consistent operation of the valve when the valve body is not level.
    Type: Application
    Filed: October 27, 2006
    Publication date: May 1, 2008
    Inventor: Paul Engdahl