Patents by Inventor Nicholas R. Frohlich

Nicholas R. Frohlich 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).

  • Method for separating a liquid-solid slurry
    Patent number: 6514421
    Abstract: An improved screen basket for use with a centrifuge includes two adjoining screen sections. The first screen section is formed from a wear resistant material and is located proximate to the point at which slurry is introduced into the basket. The length of the first screen section is chosen so that the majority of potential wear caused by the abrasive slurry occurs within the first section of the basket. The second screen section is preferably formed from less expensive materials, such as steel wedge wire. The second screen section smoothly joins the first screen section and provides for further dewatering or separation of the accelerated slurry so that a dry cake is produced by the centrifuge.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: February 4, 2003
    Assignee: Baker Hughes, Inc.
    Inventors: Wallace Woon Fong Leung, Nicholas R. Frohlich, Jr.
  • Method for separating a liquid-solid slurry
    Publication number: 20020030024
    Abstract: An improved screen basket for use with a centrifuge includes two adjoining screen sections. The first screen section is formed from a wear resistant material and is located proximate to the point at which slurry is introduced into the basket. The length of the first screen section is chosen so that the majority of potential wear caused by the abrasive slurry occurs within the first section of the basket. The second screen section is preferably formed from less expensive materials, such as steel wedge wire. The second screen section smoothly joins the first screen section and provides for further dewatering or separation of the accelerated slurry so that a dry cake is produced by the centrifuge.
    Type: Application
    Filed: July 6, 2001
    Publication date: March 14, 2002
    Inventors: Wallace Woon Fong Leung, Nicholas R. Frohlich
  • Centrifuge with partial wear resistant basket
    Patent number: 6267250
    Abstract: An improved screen basket for use with a centrifuge includes two adjoining screen sections. The first screen section is formed from a wear resistant material and is located proximate to the point at which slurry is introduced into the basket. The length of the first screen section is chosen so that the majority of potential wear caused by the abrasive slurry occurs within the first section of the basket. The second screen section is preferably formed from less expensive materials, such as steel wedge wire. The second screen section smoothly joins the first screen section and provides for further dewatering or separation of the accelerated slurry so that a dry cake is produced by the centrifuge.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: July 31, 2001
    Assignee: Baker Hughes, Incorporated
    Inventors: Wallace Woon Fong Leung, Nicholas R. Frohlich, Jr.
  • Centrifuge with partial wear resistant basket
    Patent number: 6109452
    Abstract: An improved screen basket for use with a centrifuge includes two adjoining screen sections. The first screen section is formed from a wear resistant material and is located proximate to the point at which slurry is introduced into the basket. The length of the first screen section is chosen so that the majority of potential wear caused by the abrasive slurry occurs within the first section of the basket. The second screen section is preferably formed from less expensive materials, such as steel wedge wire. The second screen section smoothly joins the first screen section and provides for further dewatering or separation of the accelerated slurry so that a dry cake is produced by the centrifuge.
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: August 29, 2000
    Assignee: Baker Hughes Incorporated
    Inventors: Wallace Woon Fong Leung, Nicholas R. Frohlich, Jr.