Patents by Inventor Norman F. Cook

Norman F. Cook 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).

  • Rotating shaft mechanical seal
    Patent number: 10920889
    Abstract: A rotating shaft seal for a rotating shaft containing a rotating assembly attached to the rotating shaft, wherein the sealing force applied to both ends of the rotating shaft within the housing is created within the rotating assembly and is applied substantially equally to both seal rings.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: February 16, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Norman F. Cook, III, Robert G. Depierri
  • Rotating Shaft Mechanical Seal
    Publication number: 20190211932
    Abstract: A rotating shaft seal for a rotating shaft containing a rotating assembly attached to the rotating shaft, wherein the sealing force applied to both ends of the rotating shaft within the housing is created within the rotating assembly and is applied substantially equally to both seal rings.
    Type: Application
    Filed: July 31, 2017
    Publication date: July 11, 2019
    Inventors: Norman F. Cook, III, Robert G. Depierri
  • Clog-resistant pump assembly for slurry loop reactor
    Patent number: 8124019
    Abstract: The pump assembly includes an impeller rotatably mounted in a pipe of the reactor having blades that generate a flow of fluid slurry through the pipe, a nosecone protruding in an upstream direction in front of the impeller blades that rotates along with the blades, and a plurality of stationary guide vanes connected to the housing upstream of the impeller blades and having free ends that are radially spaced apart from the nosecone. The leading edges of the stationary vanes are shaped to direct any stringy material into the radial gaps between the free ends of the stationary vanes and the rotating nose cone to be shredded and thus prevent fouling and clogging of the pump assembly when such stringy material is generated during the polymerization process.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: February 28, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Robert G. DePierri, Norman F. Cook
  • Clog-Resistant Pump Assembly For Slurry Loop Reactor
    Publication number: 20110046322
    Abstract: The pump assembly includes an impeller rotatably mounted in a pipe of the reactor having blades that generate a flow of fluid slurry through the pipe, a nosecone protruding in an upstream direction in front of the impeller blades that rotates along with the blades, and a plurality of stationary guide vanes connected to the housing upstream of the impeller blades and having free ends that are radially spaced apart from the nosecone. The leading edges of the stationary vanes are shaped to direct any stringy material into the radial gaps between the free ends of the stationary vanes and the rotating nose cone to be shredded and thus prevent fouling and clogging of the pump assembly when such stringy material is generated during the polymerization process.
    Type: Application
    Filed: July 2, 2010
    Publication date: February 24, 2011
    Inventors: Robert G. DePierri, Norman F. Cook, III