Patents by Inventor David S. Pliner

David S. Pliner 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).

  • Fire protection pipe and methods of manufacture
    Patent number: 6758282
    Abstract: A fire protection water sprinkler system, comprising at least one metal tube to carry water within the system, the metal tube having a coating on its interior surface comprising a quaternary ammonium salt in combination with a filming amine(s) and/or a synthetic oil.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: July 6, 2004
    Assignee: Allied Tube & Conduit Company
    Inventors: David S. Pliner, Manzoor Chaudhry, Stephen T. Norvilas, Elmer H. Foster, Robert D. Bussiere
  • Fire protection pipe and methods of manufacture
    Publication number: 20020060080
    Abstract: A fire protection water sprinkler system, comprising at least one metal tube to carry water within the system, the metal tube having a coating on its interior surface comprising a quaternary ammonium salt in combination with a filming amine(s) and/or a synthetic oil.
    Type: Application
    Filed: September 18, 2001
    Publication date: May 23, 2002
    Inventors: David S. Pliner, Manzoor Chaudhry, Stephen T. Norvilas, Elmer H. Foster, Robert D. Bussiere
  • In-line coating of steel tubing
    Patent number: 5614265
    Abstract: A method and apparatus for applying a coating to a continuous length of tubing. A coating chamber having entry and exit ports substantially encloses a portion of the tubing while permitting the tubing to pass continuously therethrough. Airflow into the coating chamber through the exit port strips excess coating material from the tubing surface. Air is withdrawn from the coating chamber by vacuum pumps through one or more separation chambers which separate entrained particles or droplets of coating material from the air. The coating chamber is preferably disposed at a distance from the separation chamber(s). The vacuum line connecting the coating chamber with the separation chamber(s) is preferably flexible or breakable. The separation chambers are preferably capable of being operated in series or in parallel. Adjustable masks are preferably provided at the entry and exit ports of the coating chamber. A seal is preferably provided at the entry port.
    Type: Grant
    Filed: February 14, 1995
    Date of Patent: March 25, 1997
    Assignee: Allied Tube & Conduit Corporation
    Inventors: Manzoor A. Chaudhry, Jeffrey L. Lamber, Bruce E. Laumann, Edward E. Mild, Brian G. Muick, Stephen T. Norvilas, David S. Pliner, Stephen E. Seilheimer
  • In-line coating of steel tubing
    Patent number: 5453302
    Abstract: A method and apparatus for applying a coating to a continuous length of tubing. A coating chamber having entry and exit ports substantially encloses a portion of the tubing while permitting the tubing to pass continuously therethrough. Airflow into the coating chamber through the exit port strips excess coating material from the tubing surface. Air is withdrawn from the coating chamber by vacuum pumps through one or more separation chambers which separate entrained particles or droplets of coating material from the air. The coating chamber is preferably disposed at a distance from the separation chamber(s). The vacuum line connecting the coating chamber with the separation chamber(s) is preferably flexible or breakable. The separation chambers are preferably capable of being operated in series or in parallel. Adjustable masks are preferably provided at the entry and exit ports of the coating chamber. A seal is preferably provided at the entry port.
    Type: Grant
    Filed: May 16, 1994
    Date of Patent: September 26, 1995
    Assignee: Allied Tube & Conduit Corporation
    Inventors: Manzoor A. Chaudhry, Jeffrey L. Lamber, Bruce E. Laumann, Edward E. Mild, Brian G. Muick, Stephen T. Norvilas, David S. Pliner, Stephen E. Seilheimer