Patents by Inventor Richard B. Crawford

Richard B. Crawford 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).

  • Apparatus and methods for large particle ash separation from flue gas using screens having semi-elliptical cylinder surfaces
    Patent number: 9649586
    Abstract: Apparatus for separating ash particles from a flue gas. The apparatus includes a screen that has a plurality of semi-elliptical cylinder surfaces. The semi-elliptical cylinder surfaces having holes through which said flue gas flows and through which the ash particles will not pass. The screen has a single layer for performing the separation in a manner such that the ash particles fall away from the screen and collect outside of the screen. A method of reducing velocity of a flue gas passing through screening apparatus for separating flue gas from ash particles. The method includes replacing a first screen of the screening apparatus with a second screen that has a plurality of semi-elliptical cylinder surfaces.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: May 16, 2017
    Assignee: Integrated Global Services, Inc.
    Inventors: Mark A. Buzanowski, Richard B. Crawford, Jake King, Iain Stuart Hall
  • Apparatus and methods for large particle ash separation from flue gas using screens having semi-elliptical cylinder surfaces
    Patent number: 9636619
    Abstract: Apparatus for separating ash particles from a flue gas. The apparatus includes a screen that has a plurality of semi-elliptical cylinder surfaces. The semi-elliptical cylinder surfaces having holes through which said flue gas flows and through which the ash particles will not pass. The screen has a single layer for performing the separation in a manner such that the ash particles fall away from the screen and collect outside of the screen. A method of reducing velocity of a flue gas passing through screening apparatus for separating flue gas from ash particles. The method includes replacing a first screen of the screening apparatus with a second screen that has a plurality of semi-elliptical cylinder surfaces.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: May 2, 2017
    Assignee: Integrated Global Services, Inc.
    Inventors: Mark A. Buzanowski, Richard B. Crawford, Iain Stuart Hall, Jake King
  • APPARATUS AND METHODS FOR LARGE PARTICLE ASH SEPARATION FROM FLUE GAS USING SCREENS HAVING SEMI-ELLIPTICAL CYLINDER SURFACES
    Publication number: 20150082983
    Abstract: Apparatus for separating ash particles from a flue gas. The apparatus includes a screen that has a plurality of semi-elliptical cylinder surfaces. The semi-elliptical cylinder surfaces having holes through which said flue gas flows and through which the ash particles will not pass. The screen has a single layer for performing the separation in a manner such that the ash particles fall away from the screen and collect outside of the screen. A method of reducing velocity of a flue gas passing through screening apparatus for separating flue gas from ash particles. The method includes replacing a first screen of the screening apparatus with a second screen that has a plurality of semi-elliptical cylinder surfaces.
    Type: Application
    Filed: December 3, 2014
    Publication date: March 26, 2015
    Inventors: Mark A. Buzanowski, Richard B. Crawford, Jake King, Iain Stuart Hall
  • APPARATUS AND METHODS FOR LARGE PARTICLE ASH SEPARATION FROM FLUE GAS USING SCREENS HAVING SEMI-ELLIPTICAL CYLINDER SURFACES
    Publication number: 20150075378
    Abstract: Apparatus for separating ash particles from a flue gas. The apparatus includes a screen that has a plurality of semi-elliptical cylinder surfaces. The semi-elliptical cylinder surfaces having holes through which said flue gas flows and through which the ash particles will not pass. The screen has a single layer for performing the separation in a manner such that the ash particles fall away from the screen and collect outside of the screen. A method of reducing velocity of a flue gas passing through screening apparatus for separating flue gas from ash particles. The method includes replacing a first screen of the screening apparatus with a second screen that has a plurality of semi-elliptical cylinder surfaces.
    Type: Application
    Filed: December 3, 2014
    Publication date: March 19, 2015
    Inventors: Mark A. Buzanowski, Richard B. Crawford, lain Stuart Hall, Jake King
  • Apparatus and methods for large particle ash separation from flue gas using screens having semi-elliptical cylinder surfaces
    Patent number: 8936662
    Abstract: Apparatus for separating ash particles from a flue gas. The apparatus includes a screen that has a plurality of semi-elliptical cylinder surfaces. The semi-elliptical cylinder surfaces having holes through which said flue gas flows and through which the ash particles will not pass. The screen has a single layer for performing the separation in a manner such that the ash particles fall away from the screen and collect outside of the screen. A method of reducing velocity of a flue gas passing through screening apparatus for separating flue gas from ash particles. The method includes replacing a first screen of the screening apparatus with a second screen that has a plurality of semi-elliptical cylinder surfaces.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: January 20, 2015
    Assignee: Integrated Global Services, Inc.
    Inventors: Mark A. Buzanowski, Richard B. Crawford, Jake King, Iain Stuart Hall
  • APPARATUS AND METHODS FOR LARGE PARTICLE ASH SEPARATION FROM FLUE GAS USING SCREENS HAVING SEMI-ELLIPTICAL CYLINDER SURFACES
    Publication number: 20140090560
    Abstract: Apparatus for separating ash particles from a flue gas. The apparatus includes a screen that has a plurality of semi-elliptical cylinder surfaces. The semi-elliptical cylinder surfaces having holes through which said flue gas flows and through which the ash particles will not pass. The screen has a single layer for performing the separation in a manner such that the ash particles fall away from the screen and collect outside of the screen. A method of reducing velocity of a flue gas passing through screening apparatus for separating flue gas from ash particles. The method includes replacing a first screen of the screening apparatus with a second screen that has a plurality of semi-elliptical cylinder surfaces.
    Type: Application
    Filed: October 2, 2012
    Publication date: April 3, 2014
    Applicant: Integrated Global Services, Inc.
    Inventors: Mark A. Buzanowski, Richard B. Crawford, Jake King, Iain Stuart Hall
  • High surface area ash removal screen
    Patent number: D778423
    Type: Grant
    Filed: April 15, 2013
    Date of Patent: February 7, 2017
    Assignee: Integrated Global Services, Inc.
    Inventors: Mark A. Buzanowski, Iain Stuart Hall, Richard B. Crawford
  • Coated screen for large particle ash control
    Patent number: D781408
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: March 14, 2017
    Assignee: Integrated Global Services, Inc.
    Inventors: Mark A. Buzanowski, Iain Stuart Hall, Richard B. Crawford
  • High surface area ash removal screen
    Patent number: D792571
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: July 18, 2017
    Assignee: Integrated Global Services, Inc.
    Inventors: Mark A. Buzanowski, Iain Stuart Hall, Richard B. Crawford
  • High surface area ash removal screen
    Patent number: D792572
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: July 18, 2017
    Assignee: Integrated Global Services, Inc.
    Inventors: Mark A. Buzanowski, Iain Stuart Hall, Richard B. Crawford
  • Coated screen for large particle ash control
    Patent number: D792573
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: July 18, 2017
    Assignee: Integrated Global Services, Inc.
    Inventors: Mark A. Buzanowski, Iain Stuart Hall, Richard B. Crawford
  • Coated screen for large particle ash control
    Patent number: D792574
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: July 18, 2017
    Assignee: Integrated Global Services, Inc.
    Inventors: Mark A. Buzanowski, Iain Stuart Hall, Richard B. Crawford
  • Coated screen for large particle ash control
    Patent number: D792575
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: July 18, 2017
    Assignee: Integrated Global Services, Inc.
    Inventors: Mark A. Buzanowski, Iain Stuart Hall, Richard B. Crawford
  • High surface area ash removal screen
    Patent number: D793545
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: August 1, 2017
    Assignee: Integrated Global Services, Inc.
    Inventors: Mark A. Buzanowski, Iain Stuart Hall, Richard B. Crawford