Patents by Inventor David R. Keck

David R. Keck 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: 7702648
    Abstract: The present invention provides a localization entity in association with a business entity requested by a requester. During instantiation of the requested business entity, a localization event is triggered which causes a policy handler to implement a localization policy to identify localization values (found in the associated localization entity) for attributes in the business entity. The localization values are received from the localization entity associated with the business entity and are placed in the business entity, as localized values.
    Type: Grant
    Filed: June 17, 2003
    Date of Patent: April 20, 2010
    Assignee: Microsoft Corporation
    Inventors: David R. Keck, Terry A. Adams
  • Patent number: 4897098
    Abstract: Improved operation of an LPG fractionating facility having a deethanizer, depropanizer and debutanizer is obtained by operating the deethanizer at a lower pressure than conventional, (e.g., less than 500 psig), thereby reducing the temperature of the deethanizer bottoms such that the debutanizer operated at greater than conventional pressure (e.g., over 100 psig) produces a mixed butane overhead at a higher temperature than the deethanizer bottoms whereby the mixed butane overhead is condensed and cooled by indirect contact with the deethanizer bottoms thereby heating the bottoms and supplying a substantial portion of the energy required for the fractionation in the deethanizer. The energy reduction for the three column system through the improved heat recovery system is 10% to 50% depending upon the feed composition.
    Type: Grant
    Filed: May 11, 1988
    Date of Patent: January 30, 1990
    Assignee: Enterprise Products Company
    Inventors: Robin M. Pate, James O. Nye, David R. Keck
  • Patent number: 4284500
    Abstract: An in-line apparatus for separating oversize particles from a pressurized fluid slurry which comprises:a rigid, hollow body member capable of withstanding the pressure of the fluid slurry, the body member having a valved slurry inlet port and a slurry outlet port, each port adapted to mate with slurry conduit means;a washer access port opposite from and in axial alignment with the slurry outlet port;a hollow, open-ended screen assembly fixedly mounted within the body member between and in axial alignment with the slurry outlet port and the washer access port;a valved oversize particle discharge port at the lowermost end of the body member adapted to mate with oversize particle conduit means; andretractable backwasher means externally mounted on the body member in axial alignment with the washer access port and the screen assembly, where the backwasher means comprises a fluid discharging spray head adapted to pass axially through the interior of the screen assembly, whereby a pressurized backwashing fluid is d
    Type: Grant
    Filed: January 18, 1980
    Date of Patent: August 18, 1981
    Assignee: Tenneco Chemicals, Inc.
    Inventor: David R. Keck