Patents by Inventor Eric W. Anderson

Eric W. Anderson 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).

  • Concentration of solids in a suspension
    Patent number: 5024762
    Abstract: A method of concentrating solids in a liquid suspension using a filter having a plurality of hollow, microporous, elastic fibres with a shell or housing, comprising applying the suspension to an outer surface of the fibres whereby a portion of the suspension passes through the fibre walls and at least a portion of the solids is retained on or in the fibres; and discharging the retained solids by stretching the fibre pores and washing out solids retained in the pores by application of gas under pressure.
    Type: Grant
    Filed: January 5, 1990
    Date of Patent: June 18, 1991
    Assignee: Memtec Limited
    Inventors: Douglas L. Ford, Eric W. Anderson, Clinton V. Kopp
  • Concentration of solids in a suspension
    Patent number: 4931186
    Abstract: A method of concentrating solids in a liquid suspension using a filter having a plurality of hollow, microporous, elastic fibres with a shell or housing, comprising applying the suspension to an outer surface of the fibres whereby a portion of the suspension passes through the fibre walls and at least a portion of the solids is retained on or in the fibres; and discharging the retained solids by stretching the fibre pores and washing out solids retained in the pores by application of gas under pressure.
    Type: Grant
    Filed: October 27, 1986
    Date of Patent: June 5, 1990
    Assignee: Memtec Limited
    Inventors: Douglas L. Ford, Eric W. Anderson, Clinton V. Kopp
  • Cooling hollow fibre cross-flow separators
    Patent number: 4816160
    Abstract: A method of treating a heated liquid suspension, which entails:(a) applying a liquid suspension to elastic, microporous, hollow fibres within a shell or housing, and(b) discharging solids retained on or in the fibres by applying to the fibre lumens a pressurized reverse flow of gas, and wherein the hollow fibres are cooled prior to applying the reverse flow of gas.
    Type: Grant
    Filed: November 17, 1986
    Date of Patent: March 28, 1989
    Assignee: Memtec Limited
    Inventors: Douglas L. Ford, Eric W. Anderson, Clinton V. Kopp
  • Child's play set with a lift system
    Patent number: 4796884
    Abstract: A child's play set including a playhouse type structure attached to a swing set is provided with a lift system including a four sided horizontal frame sized to match the foot print of the playhouse where the playhouse has no floor allowing the size of the play structure to be increased to suit larger children with porch structures resting on frame extensions to abut and hold the base of the playhouse between them on the lift structure with frame structures to raise the swing support members to match a height suitable for the larger children.
    Type: Grant
    Filed: February 10, 1987
    Date of Patent: January 10, 1989
    Assignee: Coop Design, Inc.
    Inventors: Donald B. Ely, Dale A. Ely, Eric W. Anderson
  • Formation of porous membranes
    Patent number: 4623463
    Abstract: This invention relates to a method of forming porous membranes from thermoplastic or polymeric materials and to membranes so formed.
    Type: Grant
    Filed: January 9, 1985
    Date of Patent: November 18, 1986
    Assignee: Memtec Limited
    Inventors: Douglas L. Ford, Clinton V. Kopp, Eric W. Anderson