Patents by Inventor Andrew B. Tremblay

Andrew B. Tremblay 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).

  • Nonwoven tubular filter extracting
    Patent number: 6736274
    Abstract: A method of continuously manufacturing tubular filter products includes rotating a mandrel in a first rotational direction, depositing nonwoven fibers on the mandrel to form a tube and continuously withdrawing the tube from the mandrel by engaging a peripheral surface of the tube with one or more detents extending radially from a surface of a roller. The roller rotates in a direction opposite the first rotational direction as the one or more detents engage the tube to a predetermined depth relative. For carrying out such a method, an apparatus includes a melt blowing die assembly for expelling melt blown fibers, a rotating mandrel arranged to receive the melt blown fibers from the melt blowing die assembly for allowing the melt blown fibers to accumulate in a body thereon and a rotating roll having a pattern of protruding detents.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: May 18, 2004
    Assignee: Total Filter Technology, Inc.
    Inventors: Maurice H. Tremblay, Andrew B. Tremblay
  • Nonwoven tubular filter extracting
    Publication number: 20030034296
    Abstract: A method of continuously manufacturing tubular filter products includes rotating a mandrel in a first rotational direction, depositing nonwoven fibers on the mandrel to form a tube and continuously withdrawing the tube from the mandrel by engaging a peripheral surface of the tube with one or more detents extending radially from a surface of a roller. The roller rotates in a direction opposite the first rotational direction as the one or more detents engage the tube to a predetermined depth relative. For carrying out such a method, an apparatus includes a melt blowing die assembly for expelling melt blown fibers, a rotating mandrel arranged to receive the melt blown fibers from the melt blowing die assembly for allowing the melt blown fibers to accumulate in a body thereon and a rotating roll having a pattern of protruding detents.
    Type: Application
    Filed: August 17, 2001
    Publication date: February 20, 2003
    Inventors: Maurice H. Tremblay, Andrew B. Tremblay