Patents by Inventor Thomas J. Learman

Thomas J. Learman 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).

  • Publication number: 20040163667
    Abstract: A dust mop or cleaning device and a method for collecting dust and/or other particles are provided. The dust mop and/or cleaning device emits an electrostatic charge. The electrostatic charge polarizes dust and/or other particles to be attracted to an opposite polarity. The dust mop and/or cleaning device attracts the oppositely charged particles. The dust mop and/or cleaning device restrains dust and/or other particles until after the dust mop is deactivated. The dust mop may be used to collect dust and/or particles from hard-to-reach areas.
    Type: Application
    Filed: February 20, 2003
    Publication date: August 26, 2004
    Inventor: Thomas J. Learman
  • Patent number: 5828940
    Abstract: A formable composite magnetic flux concentrator material is composed of about 65% to 90% ferromagnetic material, such as iron powder, and about 35% to 10% binder, the binder being a mixture of an epoxy and one or more catalysts. The concentrator material is provided in a formable state as a putty-like body which can be worked into any desired shape dictated by the configuration of the induction heating coil used in a particular application. In one form, the density of the concentrator material is increased by application of vibration, compression and vacuum to de-air the material and to reduce voids therein. In another form, the iron powder comprises spherical-shaped particles and non-spherical shaped powders chosen in a ratio to maximize the density of material available.
    Type: Grant
    Filed: January 26, 1996
    Date of Patent: October 27, 1998
    Assignee: Learflux Inc.
    Inventor: Thomas J. Learman
  • Patent number: 5529747
    Abstract: A formable composite magnetic flux concentrator material is composed of about 65% to 90% ferromagnetic material, such as iron powder, and about 35% to 10% binder, the binder being a mixture of an epoxy and one or more catalysts. The concentrator material is provided in a formable state as a putty-like body which can be worked into any desired shape dictated by the configuration of the induction heating coil used in a particular application. In one form, the density of the concentrator material is increased by application of vibration, compression and vacuum to de-air the material and to reduce voids therein. In another form, the iron powder comprises spherical-shaped particles and non-spherical shaped powders chosen in a ratio to maximize the density of material available.
    Type: Grant
    Filed: December 7, 1994
    Date of Patent: June 25, 1996
    Assignee: Learflux, Inc.
    Inventor: Thomas J. Learman
  • Patent number: 5418069
    Abstract: A formable composite magnetic flux concentrator is composed of about 65 to 90 percent ferromagnetic material, such as iron powder, and about 35 to 10 percent binder, the binder being a mixture of an epoxy and one or more catalysts. The concentrator is provided in a formable state as a putty-like body which can be worked into any desired shape dictated by the configuration of the induction heating coil used in a particular application.
    Type: Grant
    Filed: November 10, 1993
    Date of Patent: May 23, 1995
    Inventor: Thomas J. Learman