Patents by Inventor James J. Pollock

James J. Pollock 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).

  • Valve
    Patent number: 4010929
    Abstract: A crank-operated valve is provided wherein the valving member and stem are of deflectable plastic material. Sucn an arrangement permits a corrosion resistant, easily operating valve to be prepared using an imprecise valve body.
    Type: Grant
    Filed: May 31, 1973
    Date of Patent: March 8, 1977
    Assignee: The Dow Chemical Company
    Inventor: James J. Pollock
  • Seal holding means
    Patent number: 3994518
    Abstract: Means for clamping together two flanged ends of vitreous tubing or the like in which the facing surfaces of the flanged ends are flat wherein screw adjustable strap-like clamps having an array of screw engaging slots along their length are tightly coupled around each piece of tubing near the flanged end. With the flanged ends abutting, tension members, usually springs, are coupled between the clamps. Usually each tension member has at least one end coupled to that part of a clamp which lies between two screw engaging slots.
    Type: Grant
    Filed: March 28, 1975
    Date of Patent: November 30, 1976
    Assignee: The Dow Chemical Company
    Inventor: James J. Pollock