Patents by Inventor Norman L. Freeman, Jr.

Norman L. Freeman, Jr. 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).

  • Potassium carbonate supports, catalysts, and olefin dimerization processes therewith
    Patent number: 5237117
    Abstract: Catalyst supports, catalyst systems, methods for the preparation thereof, and dimerization process therewith are provided catalyst supports are extruded from a thick paste of potassium carbonate and water catalyst systems comprise at least one elemental alkali metal deposited on the catalyst support. Optionally, the catalyst system further comprises at least one promoter.
    Type: Grant
    Filed: October 30, 1992
    Date of Patent: August 17, 1993
    Assignee: Phillips Petroleum Company
    Inventors: Paul F. Schubert, Ralph E. Bonnell, Norman L. Freeman, Jr., Denton C. Fentress, Kent E. Mitchell, Richard E. Lowery, Dodnald H. Kubicek
  • Process for preparing carbonate supports and catalysts
    Patent number: 5202298
    Abstract: Catalyst supports, catalyst systems, methods for the preparation thereof, and dimerization process therewith are provided catalyst supports are extruded from a thick paste of potassium carbonate and water catalyst systems comprise at least one elemental alkali metal deposited on the catalyst sypport. Optionally, the catalyst system further comprises at least one promoter.
    Type: Grant
    Filed: December 5, 1990
    Date of Patent: April 13, 1993
    Assignee: Phillips Petroleum Company
    Inventors: Paul F. Schubert, Ralph E. Bonnell, Norman L. Freeman, Jr., Denton C. Fentress, Kent E. Mitchell, Richard E. Lowrey, Donald H. Kubicek, Warren M. Ewert
  • Adjustable relief valve
    Patent number: 4248265
    Abstract: An improved adjustable relief valve is provided having a valve body with a valve body inlet and outlet disposed therein. A reciprocating plunger is disposed in said valve body, and is movable between a first closed position isolating said valve body inlet and outlet, and a second open position communicating said valve body inlet and outlet. A pilot valve means is operatively associated with said plunger to control the flow of fluid from said valve body inlet to said plunger. Both said plunger and said pilot valve means have adjustable spring means for urging them toward their respective closed positions. An auxiliary means is provided for opening said relief valve without varying the adjustments of said spring means, so that said relief valve may be purged with a cleansing fluid.
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: February 3, 1981
    Assignee: Halliburton Services
    Inventor: Norman L. Freeman, Jr.