Patents by Inventor George S. Cherniak

George S. Cherniak 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: 4407325
    Abstract: A check valve for controlling the flow of fluid in a conduit so that flow in one direction is unimpeded and flow in the opposite direction is prevented, providing in the open position, an unimpeded flow passage permitting the passage through the valve of material separators or cleaning tools. An arcuate, saddle shaped valve sealing element developed from a tubular member is pivotable 90 degrees from a closed position in engagement with a valve seat to an open position where the sealing element is in conformal configuration with the inner wall of the valve body presenting a free flow path with no obstruction to the passage of solid objects through the valve. All elements of the valve are formable from tubular elements, eliminating the need for special castings and reducing the machining required to fabricate a valve.
    Type: Grant
    Filed: November 9, 1981
    Date of Patent: October 4, 1983
    Inventor: George S. Cherniak
  • Patent number: 4396034
    Abstract: A check valve for controlling the flow of fluid in a conduit so that flow in one direction is unimpeded and flow in the opposite direction is prevented which provides in the open position an unimpeded fluid passage permitted the passage of cleaning tools or material separators through the valve. A valve seat and an arcuate valve sealing member are formed with mating bi-planar sealing surfaces, the valve seat being formed by making intersecting 45 degree cuts from the transverse end plane of a tubular member to the horizontal diametral plane and the valve sealing member being formed by making 45 degree intersecting cuts from the periphery of a corresponding tubular member to the horizontal diametral plane, producing an arcuate member, which in the open position has the configuration of the interior of the valve body.
    Type: Grant
    Filed: October 26, 1981
    Date of Patent: August 2, 1983
    Inventor: George S. Cherniak