Patents by Inventor Robert William Anderson

Robert William Anderson 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: 8656946
    Abstract: A double check valve (10) with two separate elements (20, 25) individually movable to close the valve and collectively movable to open the valve. The separate elements are independently closing the valve, and collectively controllable to open the valve, to allow pressure release or to allow injection of fluid (e.g. lubricant). In an example, the double check valve includes two separate check valves with a stinger element (30) between them which is operable to internally sting the one check valve when (e.g. by action of) the other check valve is stung by a user (e.g. using a stinger means) thereby to open both check valves individually and the double check valve as a whole.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: February 25, 2014
    Assignee: Anson Limited
    Inventors: Robert William Anderson, Neil Colin Kennedy
  • Publication number: 20100170571
    Abstract: A double check valve (10) with two separate elements (20, 25) individually movable to close the valve and collectively movable to open the valve. The separate elements are independently closing the valve, and collectively controllable to open the valve, to allow pressure release or to allow injection of fluid (e.g. lubricant). In an example, the double check valve includes two separate check valves with a stinger element (30) between them which is operable to internally sting the one check valve when (e.g. by action of) the other check valve is stung by a user (e.g. using a stinger means) thereby to open both check valves individually and the double check valve as a whole.
    Type: Application
    Filed: May 22, 2008
    Publication date: July 8, 2010
    Applicant: Anson Limited
    Inventors: Robert William Anderson, Neil Colin Kennedy
  • Patent number: 7153575
    Abstract: The present invention relates to coated particulate matter wherein the particles are individually coated with a first set of one or more layers of a curable resin, for example, a combination of phenolic/furan resin or furan resin or phenolic-furan-formaldehyde terpolymer, on a proppant such as sand, and the first set of layers is coated with a second set of one or more layers of a curable resin, for example, a novolac resin with curative. Methods for making and using this coated product as a proppant, gravel pack and for sand control are also disclosed.
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: December 26, 2006
    Assignee: Borden Chemical, Inc.
    Inventors: Robert William Anderson, Tom Diep, Avis Lloyd McCrary
  • Publication number: 20030224165
    Abstract: The present invention relates to coated particulate matter wherein the particles are individually coated with a first set of one or more layers of a curable resin, for example, a combination of phenolic/furan resin or furan resin or phenolic-furan-formaldehyde terpolymer, on a proppant such as sand, and the first set of layers is coated with a second set of one or more layers of a curable resin, for example, a novolac resin with curative. Methods for making and using this coated product as a proppant, gravel pack and for sand control are also disclosed.
    Type: Application
    Filed: May 28, 2003
    Publication date: December 4, 2003
    Inventors: Robert William Anderson, Tom Diep, Avis Lloyd McCrary
  • Publication number: 20030116742
    Abstract: A gate valve comprises a body member having a bore therethrough, a gate member movable transversely of the bore between an open position permitting full flow through the bore, and a closed position preventing flow through the bore, and a stem portion mounted in the body member to be axially fixed therein but rotatable relative thereto, one end of the stem portion co-operating with the gate member whereby rotation of the stem portion results in movement of the gate member between its open and closed positions, a sleeve member secured to, to be rotatable with, the stem portion external of the body member and defining an annular gap between the stem portion and the sleeve member, and an annular skirt within said gap, the skirt being rotatably fixed but axially movable relative to the stem portion, the skirt and sleeve member threadedly engaging one another such that rotation of the sleeve member results in axial movement of the skirt relative to the sleeve member and the stem portion in a direction dependent upo
    Type: Application
    Filed: June 10, 2002
    Publication date: June 26, 2003
    Inventors: Robert William Anderson, David Michael Kay
  • Patent number: 4017680
    Abstract: Improvements and modifications are described to an image analyzing system in which an image of a field under analysis is displayed on a television monitor screen and features can be edited by adding or subtracting feature content to or from the display (and corresponding signal content to or from the signal which is to be processed for analysis) using a light pen.One improvement provides for straight line interpolation between points in the display selected by the light pen during successive frame scans, so that a continuous trace and therefore corresponding signal is produced in the display corresponding to the path traced out by the light pen.Another provides for an alarm signal to be generated if the storage facility used for storing the locus of the trace to allow its reconstruction during successive frame scans, becomes more than a given percentage occupied.
    Type: Grant
    Filed: July 8, 1975
    Date of Patent: April 12, 1977
    Assignee: Image Analysing Computers Limited
    Inventors: Robert William Anderson, William Ralph Knowles, John Edward Culley