Patents by Inventor Edward D. Andrew

Edward D. Andrew 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: 9375666
    Abstract: This invention is directed to a filter media for manufacturing pleated filters comprising a non-woven, needle punch felt including a blend of a first polyester fiber and a bi-component fiber wherein said bi-component fiber has a sheath and a core wherein said sheath has a melting point above 110° C. and said nonwoven felt has an efficiency of greater than 89% for particles size of 3 to 10 ?m as determined by testing method ASHRAE 52.2. The invention can include a top portion and a bottom portion manufactured from a web made from a carding process that is cross lapped, cut and overlapped so that said top portion and said bottom portion are entangled by a needle punching process to create a homogeneous arrangement prior to applying heat and pressure to stiffen the media for pleating.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: June 28, 2016
    Assignee: Southern Felt Company, Inc.
    Inventors: Eric Winters, John Lewis, Brian Fields, Edward D Andrew
  • Patent number: 6054399
    Abstract: A textile material whose fibers have been coated, at least in part, with fluorocarbon particles is usable in an electrophotographic printing machine to clean toner particles off a fuser roll, and to supply a toner release agent to the fuser roll. The textile material can include woven goods, as well as non-woven felts and the like. The resultant product has reduced friction and decreased fiber shedding.
    Type: Grant
    Filed: January 27, 1998
    Date of Patent: April 25, 2000
    Assignee: BMP America, Inc.
    Inventors: Alan R. Lebold, Alan Smithies, Edward D. Andrew
  • Patent number: 4856769
    Abstract: A conveyor surface composed of a single belt, a plurality of belts or of other structures such as a plurality of panels or other moving surface, or a fixed surface over which sheets of non-conductive material as paper or textiles can be caused to travel or can slide. The surface is composed of two sets of areas, intermingled in one of several ways, the two sets of areas being of material of opposite electrostatic properties (spaced apart on the triboelectric scale) so that when a sheet is conveyed the two sets of areas develop opposite electrostatic reaction to the sheet to give an overall zero or near-zero electrostatic resultant force on the sheet or other item being conveyed.
    Type: Grant
    Filed: November 9, 1987
    Date of Patent: August 15, 1989
    Assignee: Edward W. Andrew, Ltd.
    Inventors: Edward D. Andrew, Peter Hayhurst