Patents by Inventor David Williamson

David Williamson 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).

  • Publication number: 20100122740
    Abstract: A water reservoir which uses a corrugated metal tube as its main body. A solid plate seals one end of said corrugated metal tube and another solid plate seals the other end. The Corrugated metal tube has an opening at the top on which is secured a collar. A sleeve slides over the collar and extends up to ground level.
    Type: Application
    Filed: August 3, 2009
    Publication date: May 20, 2010
    Inventor: David Williamson
  • Publication number: 20100122944
    Abstract: A water filtering system having its components contained within a single housing. The filter system uses a first filter pair of filters which can be first manually isolated from the water flow; and a second pair of filters which can also be manually isolated from the water flow. The two pairs of filters operate in parallel, thereby allowing one pair to be isolated for cleaning/repair without having to curtail operation since the other pair of filters remain operational.
    Type: Application
    Filed: August 3, 2009
    Publication date: May 20, 2010
    Inventor: David Williamson
  • Publication number: 20100122945
    Abstract: A gray water recycling system which uses a holding tank receiving waste water from a laundry facility. The holding tank has a pump for withdrawing water from said holding tank. A float, within said holding tank, is activated when a water level within said holding tank exceeds a pre-determined level. The pump communicates with a pressure tank. The pump used to fill and pressurize the pressure tank is activated when pressure within said pressure tank falls below a predetermined level and the float within said holding tank indicates that a water level within said holding tank exceeds a pre-determined level.
    Type: Application
    Filed: November 17, 2008
    Publication date: May 20, 2010
    Inventor: David Williamson
  • Publication number: 20100122739
    Abstract: A grey water control system utilizing a computer configured to selectively disburse grey water as required. This disbursement is to: irrigate plants on the site of the business where the grey water is collected; irrigate plants on a site remote from the location where the grey water is collected; or, discharge of the grey water into a water disposal mechanism.
    Type: Application
    Filed: August 3, 2009
    Publication date: May 20, 2010
    Inventor: David Williamson
  • Publication number: 20100122738
    Abstract: A grey water disposal system which is ideally placed below a parking lot. Water flow chambers are positioned beneath said parking lot. These water flow chambers having a solid upper surface and open at the bottom. Pipes communicating grey water into said water flow chambers. In one embodiment, the water flow chambers are configured with at least two legs and the pipes are configured to selectively deliver the grey water to different legs as dictated by a remotely controlled valve.
    Type: Application
    Filed: August 3, 2009
    Publication date: May 20, 2010
    Inventor: David Williamson
  • Publication number: 20100065985
    Abstract: The present invention provides a film comprising: a base layer, wherein the base layer comprises a core layer comprising a compostable polymer and each surface of the core layer bears a sealant layer; an embossing layer contiguously attached to the base layer suitable for embossing, and for bearing a diffractive structure thereby defining a holographic surface.
    Type: Application
    Filed: September 11, 2009
    Publication date: March 18, 2010
    Applicant: API FOILS LIMITED
    Inventors: Tony BLEASDALE, David WILLIAMSON
  • Patent number: 7640111
    Abstract: Computer-based method and system are disclosed for interpreting dips, dip trends, and mineral based lithofacies data to identify certain geological events in a subsurface formation. The disclosed method/system analyzes dip magnitude and azimuth data to determine the dip trends in the formation. The dip trends are then examined for indications of the presence of certain depositional events, such as build-ups, flow directions instances of scour and fill, direction to thalweg, parallel bedding, indications of fault, and the like. If lithofacies data is available the disclosed method/system can also analyze this data to identify the presence of interbedded sequences and condensed sections. Such an integrated solution saves geoscientists and interpreters an enormous amount of time compared to existing interpretation techniques, allowing them to be much more productive. The disclosed system/method may also be used to help train new and less experienced geoscientists and interpreters.
    Type: Grant
    Filed: July 19, 2007
    Date of Patent: December 29, 2009
    Assignee: Schlumberger Technology Corporation
    Inventors: George R. Kear, Anish Kumar, David Williamson, Gamal E. Shehab
  • Publication number: 20080068724
    Abstract: A liquid immersion optical system includes a first optically transparent member and a second optically transparent member, arranged in an optical path between the first optically transparent member and an object. A first space between the first optically transparent member and the second optically transparent member is fillable with a first liquid. A second space between the second optically transparent member and the object is fillable with a second liquid. The second optically transparent member is detachably arranged in the optical path between the first optically transparent member and the object.
    Type: Application
    Filed: October 18, 2007
    Publication date: March 20, 2008
    Applicant: Nikon Corporation
    Inventors: Yasuhiro Omura, Hironori Ikezawa, David Williamson
  • Publication number: 20080049336
    Abstract: An immersion optical system includes a plurality of lenses disposed along a light beam path of the immersion optical system. The plurality of lenses include a liquid immerged lens which is contactable with a liquid layer. An optically conjugate point of an object surface is formed in the light beam path of the immersion optical system. The object surface is contactable with a liquid.
    Type: Application
    Filed: October 17, 2007
    Publication date: February 28, 2008
    Applicant: Nikon Corporation
    Inventors: Yasuhiro Omura, Hironori Ikezawa, David Williamson
  • Publication number: 20080049306
    Abstract: An optical system for ultraviolet light includes a plurality of optical elements made of a material transparent to ultraviolet light. At least two of the optical elements are utilized for forming at least one liquid lens group that has a first delimiting optical element, a second delimiting optical element, and a liquid lens, which is arranged in an interspace between the first delimiting optical element and the second delimiting optical element and contains a liquid transparent to ultraviolet light.
    Type: Application
    Filed: October 17, 2007
    Publication date: February 28, 2008
    Applicant: Nikon Corporation
    Inventors: Yasuhiro Omura, Hironori Ikezawa, David Williamson
  • Publication number: 20080021653
    Abstract: Computer-based method and system are disclosed for interpreting dips, dip trends, and mineral based lithofacies data to identify certain geological events in a subsurface formation. The disclosed method/system analyzes dip magnitude and azimuth data to determine the dip trends in the formation. The dip trends are then examined for indications of the presence of certain depositional events, such as build-ups, flow directions instances of scour and fill, direction to thalweg, parallel bedding, indications of fault, and the like. If lithofacies data is available the disclosed method/system can also analyze this data to identify the presence of interbedded sequences and condensed sections. Such an integrated solution saves geoscientists and interpreters an enormous amount of time compared to existing interpretation techniques, allowing them to be much more productive. The disclosed system/method may also be used to help train new and less experienced geoscientists and interpreters.
    Type: Application
    Filed: July 19, 2007
    Publication date: January 24, 2008
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: George R. Kear, Anish Kumar, David Williamson, Gamal E. Shehab
  • Publication number: 20070293629
    Abstract: This invention relates to the preparation of polyamide block copolymers by sequential monomer addition. More particularly, it relates to catalysts capable of copolymerizing not only cyclic amides, but other monomers such as cyclic esters and epoxides as well, using sequential addition so as to produce useful and novel block copolymers.
    Type: Application
    Filed: May 31, 2007
    Publication date: December 20, 2007
    Inventors: DAVID WILLIAMSON, Wilson TAM
  • Publication number: 20070252311
    Abstract: N-heterocyclic carbenes are effective catalysts for the polymerization of macrocyclic polyester oligomers. The catalysts provide rapid polymerization, high monomer conversion, high molecular weight, and a mechanically sound material.
    Type: Application
    Filed: November 9, 2005
    Publication date: November 1, 2007
    Inventors: Wilson Tam, David Williamson
  • Publication number: 20070173585
    Abstract: Mechanical properties of monofilament polyester fibers and multifilament polyester yarns prepared therefrom are improved by incorporating into the polymer from which the monofilament fibers are formed an effective amount of exfoliated sepiolite-type clay.
    Type: Application
    Filed: December 20, 2006
    Publication date: July 26, 2007
    Inventors: Gregory Sevenich, David Williamson
  • Publication number: 20070080281
    Abstract: A new and useful imaging concept is provided that is designed to improve the manner in which control information for an imaging optical system such as a lithographic imaging optical system can be generated. An imaging optical system comprises imaging optics defining a primary optical path along which a primary image is imaged, and a measurement optical path is established and includes at least part of the primary optical path. The imaging optical system is configured to obtain information from the measurement optical path for use in providing control information for the imaging optical system. Such a system is particularly useful for measuring the topography of a large region of the surface under investigation, like the entire instantaneous field of a wafer, instead being limited to a small patch or set of patches.
    Type: Application
    Filed: October 5, 2006
    Publication date: April 12, 2007
    Inventors: Daniel Smith, David Williamson, W. Novak
  • Publication number: 20070065141
    Abstract: A liquid-cooled camera assembly that includes a camera for viewing the combustion process in an industrial gas turbine that further includes a tri-concentric tube assembly, and a window cap positioned at a first end of the tri-concentric tube assembly. The camera may be positioned adjacent to and behind the window cap. The tri-concentric tube assembly may form channels between the tubes that direct the flow of coolant to the camera from an inlet and from the camera to an outlet. The coolant may be water. The window cap may be cylindrical and may not exceed 1 inch (2.54 cm) in diameter. The window cap may be brazed quartz.
    Type: Application
    Filed: September 20, 2005
    Publication date: March 22, 2007
    Applicant: GENERAL ELECTRIC COMPANY
    Inventor: David Williamson
  • Publication number: 20070050600
    Abstract: Techniques for preventing the loss of trace information being transmitted via trace infrastructure are disclosed. A data processing apparatus for processing instructions is provided.
    Type: Application
    Filed: August 17, 2005
    Publication date: March 1, 2007
    Applicant: ARM Limited
    Inventors: Stephen Hill, Glen Harris, David Williamson
  • Publication number: 20070043930
    Abstract: Techniques for improving the performance of a data processing apparatus are disclosed. A data processing apparatus operable to process instructions and operable to determine, prior to each instruction being issued for execution, when resources associated with that instruction are predicted to be available for use by succeeding instructions is provided.
    Type: Application
    Filed: August 16, 2005
    Publication date: February 22, 2007
    Inventors: Stephen Hill, Glen Harris, David Williamson
  • Publication number: 20070028078
    Abstract: A data processing apparatus comprising: a pipelined processor comprising an execution pipeline operable to execute instructions in a plurality of execution stages; a fetch unit for fetching instructions from a memory prior to sending those instructions to said execution pipeline; an instruction decoder operable to decode said fetched instructions; instruction evaluation logic operable to evaluate if a decoded instruction has executed as anticipated prior to said decoded instruction passing a replay boundary within said execution pipeline; a data store operable to store a plurality of decoded instructions in an instruction queue, said data processing apparatus being operable to store a decoded instruction within said instruction queue at least one cycle prior to said decoded instruction entering said execution pipeline and to remove said decoded instruction from said instruction queue upon said decoded instruction passing said replay boundary within said execution pipeline, said instruction queue being arrange
    Type: Application
    Filed: July 26, 2005
    Publication date: February 1, 2007
    Applicant: ARM Limited
    Inventors: Glen Harris, Stephen Hill, David Williamson
  • Publication number: 20060276580
    Abstract: This invention concerns a process for the preparation of semicrystalline polycarbonate compositions by synthesizing the polycarbonate in the presence of a sepiolite-type clay as a nucleating agent. The semicrystalline compositions produced are useful as starting materials for the production of high molecular weight polycarbonate by solid state polymerization.
    Type: Application
    Filed: December 2, 2005
    Publication date: December 7, 2006
    Inventor: David Williamson