Patents Represented by Attorney, Agent or Law Firm Jeffrey S. Ellsworth
  • Digital media cutter
    Patent number: 6491361
    Abstract: A printer includes a rasterized laser illumination system. The printer may be an ink jet type and the application of laser light may be controlled digitally along with the ink droplet ejection. The media may be cut or etched with the laser, or heat may be applied to previously deposited ink.
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: December 10, 2002
    Assignee: Encad, Inc.
    Inventor: Donald E. Spann
  • Ink jet printed textiles
    Patent number: 6479412
    Abstract: Textiles are treated with a polymer or copolymer of epihalohydrin and polyalkylene amine prior to ink jet printing onto the textile. A softener such as a quaternary ammonium salt may also be used, as may be a cationic binder.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: November 12, 2002
    Assignee: Encad, Inc.
    Inventors: Dheya Alfekri, Gary Staley, Bob Chin, Brian Hardin, Cincin Siswanto
  • Microwave applicator for drying sheet material
    Patent number: 6444964
    Abstract: A microwave applicator suitable for drying sheet material is configured as a dual slot antenna, with one portion of the slot coupled to a wave launching cavity, and the other portion of the slot coupled to an impedance matching cavity.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: September 3, 2002
    Assignee: Encad, Inc.
    Inventors: Bernard John Eastlund, Donald Emmett Spann, Paul Robert Eberhardt, Minh Chi Duong
  • Printer ink cartridge
    Patent number: 6435676
    Abstract: A printer ink cartridge includes a jet plate and memory storage element mounted different surfaces thereof. A connector circuit affixes to the jet plate and the memory storage element. The memory storage element stores information about ink expelled from the cartridge.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: August 20, 2002
    Assignee: Encad, Inc.
    Inventors: Richard A. Murray, Dan J. Dull
  • Pinch roller for inkjet printer
    Patent number: 6435746
    Abstract: An apparatus and method for guiding recording media through a printer comprises a roller unit which is coupled to the printer and which comprises a plurality of roller wheels.
    Type: Grant
    Filed: March 27, 2001
    Date of Patent: August 20, 2002
    Assignee: Encad, Inc.
    Inventors: Steven J. Wirth, David A. Neese, Marni D. Ines, William Golobeff
  • Microwave energy ink drying system
    Patent number: 6425663
    Abstract: A microwave ink drying apparatus for an ink jet printer includes a microwave applicator. The applicator may be attached to a movable print carriage. The applicator may further comprise a slot antenna. The slot antenna may be formed as a dual slot, with one portion of the slot coupled to a wave launching cavity, and the other portion of the slot coupled to an impedance matching cavity.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: July 30, 2002
    Assignee: Encad, Inc.
    Inventors: Bernard John Eastlund, Donald Emmett Spann, Andrew Hugh Bushnell, Paul Robert Eberhardt, Peter James Fellingham