Patents by Inventor David G. Scott

David G. Scott 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: 8056908
    Abstract: The mechanic's creeper has a lower body support, an upper body support and dual wheel assemblies mounted to the frame in a triangular array. The triangular positioning of the dual wheel assemblies provides for exceptional mobility when a person is working in a reclined position underneath a motor vehicle. The mechanic's creeper may have trays for holding small tools and parts attached to the frame near the lower body support.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: November 15, 2011
    Inventor: David G. Scott
  • Publication number: 20090184482
    Abstract: The mechanic's creeper has a lower body support, an upper body support and dual wheel assemblies mounted to the frame in a triangular array. The triangular positioning of the dual wheel assemblies provides for exceptional mobility when a person is working in a reclined position underneath a motor vehicle. The mechanic's creeper may have trays for holding small tools and parts attached to the frame near the lower body support.
    Type: Application
    Filed: January 8, 2009
    Publication date: July 23, 2009
    Inventor: David G. Scott
  • Patent number: 6782515
    Abstract: A method for identifying, by way of a genetic algorithm, test points to be inserted in an integrated circuit (IC) chip to improve the testability of the IC is described. The algorithm is particularly well suited for large circuit designs (several million gates) because it allows to simultaneous insert multiple additional test points at critical locations of the IC to gain supplemental controlability and/or observability and thereby eliminating the drawbacks associated with the single test point approach. To further improve performance, cost function gradient techniques are applied to guide the selection of potential test points for consideration by the algorithm. Fault simulation of random patterns is used to more accurately distinguish between random pattern testable and random resistant faults, and to provide a more accurate set of initial probabilities for the cost function calculations.
    Type: Grant
    Filed: January 2, 2002
    Date of Patent: August 24, 2004
    Assignee: Cadence Design Systems, Inc.
    Inventors: David G. Scott, Faisal R. Khoja
  • Publication number: 20030154432
    Abstract: A method for identifying, by way of a genetic algorithm, test points to be inserted in an integrated circuit (IC) chip to improve the testability of the IC is described. The algorithm is particularly well suited for large circuit designs (several million gates) because it allows to simultaneous insert multiple additional test points at critical locations of the IC to gain supplemental controlability and/or observability and thereby eliminating the drawbacks associated with the single test point approach. To further improve performance, cost function gradient techniques are applied to guide the selection of potential test points for consideration by the algorithm. Fault simulation of random patterns is used to more accurately distinguish between random pattern testable and random resistant faults, and to provide a more accurate set of initial probabilities for the cost function calculations.
    Type: Application
    Filed: January 2, 2002
    Publication date: August 14, 2003
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: David G. Scott, Faisal R. Khoja
  • Patent number: 6449867
    Abstract: An apparatus for measuring a dimension of a workpiece includes a pair of rods positioned within a channel of a baseplate. At least one wedge member is mounted between the rods and forces the rods in a direction away from each other. A guide plate is adjustably mounted with respect to the baseplate, the guide plate having a cutout positioned at least partially over the rods for accepting the workpiece. A measuring tool is adjustably mounted with respect to the baseplate for moving in at least a linear direction.
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: September 17, 2002
    Assignee: Tru-Grind, Inc.
    Inventor: David G. Scott
  • Patent number: 4186654
    Abstract: Improved lubrication system for multiplex pumps including lubrication reservoir means, pump means, filtration means and valve means.
    Type: Grant
    Filed: May 18, 1978
    Date of Patent: February 5, 1980
    Assignee: Halliburton Company
    Inventor: David G. Scott