Patents Assigned to Sawgrass Systems, Inc.
  • Patent number: 5601023
    Abstract: An image is printed on a medium by means of a computer driven printer using an ink composition comprising heat activated dye solids, without activating the dye solids during the process of printing onto the medium. The image is transferred from the medium to the object on which the image is to permanently appear by applying sufficient heat and pressure to the medium to activate the dye and transfer the image to the object. The liquid form of the ink composition uses a liquid carrier and an emulsifying enforcing agent which has an affinity for the dye. The emulsifying enforcing agent shields the heat activated dye both prior to, and during, the printing process.
    Type: Grant
    Filed: December 1, 1995
    Date of Patent: February 11, 1997
    Assignee: Sawgrass Systems, Inc.
    Inventors: Nathan S. Hale, Ming Xu
  • Patent number: 5590600
    Abstract: An image is printed on a medium by means of an electrographic device using an ink composition comprising heat activated inks, without substantial activation of the inks during the process of printing the image onto the medium. A molecular sieve added to the ink composition assists activation control. The image is transferred from the medium to the object on which the image is to permanently appear by applying sufficient heat and pressure to the medium to activate and permanently transfer the inks from the medium to an object.
    Type: Grant
    Filed: May 29, 1996
    Date of Patent: January 7, 1997
    Assignee: Sawgrass Systems, Inc.
    Inventors: Nathan Hale, Ming Xu
  • Patent number: 5575877
    Abstract: An image is permanently transferred to a substrate having a cotton component, or other component which is absorbent or porous, from a medium printed with the image by a computer driven printer. A polymer surface preparation material is printed by the computer driven printer onto the medium and over the image without printing the material substantially beyond the margins of the image and onto unprinted portions of the medium. The image is transferred from the medium to the substrate by applying sufficient heat and pressure to the medium to transfer the ink and the surface preparation material, with the surface preparation material bonding the ink to the substrate.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: November 19, 1996
    Assignee: Sawgrass Systems, Inc.
    Inventors: Nathan Hale, Ming Xu
  • Patent number: 5555813
    Abstract: An image is printed on a medium by means of an electrographic device using an ink composition comprising heat activated inks, without substantial activation of the inks during the process of printing the image onto the medium. A molecular sieve added to the ink composition assists activation control. The image is transferred from the medium to the object on which the image is to permanently appear by applying sufficient heat and pressure to the medium to activate and permanently transfer the inks from the medium to an object.
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: September 17, 1996
    Assignee: Sawgrass Systems, Inc.
    Inventors: Nathan Hale, Ming Xu
  • Patent number: 5522317
    Abstract: An image is permanently transferred to a substrate having a cotton component, or other component which is absorbent or porous, from a medium printed with the image by a thermal printer using heat activated ink. A polymer surface preparation material and the ink are transferred by the thermal printer to the medium from a ribbon containing the ink and the surface preparation material, without activating the ink or the surface preparation material. The image is transferred from the medium to the substrate by applying sufficient heat and pressure to the medium to activate and transfer the ink and the surface preparation material, with the surface preparation material bonding the ink to the substrate.
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: June 4, 1996
    Assignee: Sawgrass Systems, Inc.
    Inventors: Nathan S. Hale, Ming Xu
  • Patent number: 5488907
    Abstract: An image is printed on a medium by means of an ink jet printer using an ink composition comprising heat activated ink solids, without activating the ink solids during the process of printing onto the medium. The image is transferred from the medium to the object on which the image is to permanently appear by applying sufficient heat and pressure to the medium to activate and transfer the ink to the object.
    Type: Grant
    Filed: September 1, 1994
    Date of Patent: February 6, 1996
    Assignee: Sawgrass Systems, Inc.
    Inventors: Ming Xu, Nathan Hale
  • Patent number: 5487614
    Abstract: An image is permanently transferred to a substrate having a cotton component, or other component which is absorbent or porous, from a medium printed with the image by a thermal printer using heat activated ink. A polymer surface preparation material and the ink are transferred by the thermal printer to the medium from a ribbon containing the ink and the surface preparation material, without activating the ink or the surface preparation material. The image is transferred from the medium to the substrate by applying sufficient heat and pressure to the medium to activate and transfer the ink and the surface preparation material, with the surface preparation material bonding the ink to the substrate.
    Type: Grant
    Filed: March 8, 1994
    Date of Patent: January 30, 1996
    Assignee: Sawgrass Systems, Inc., a South Carolina Corporation
    Inventor: Nathan S. Hale
  • Patent number: 5431501
    Abstract: An image is permanently transferred to a substrate having a cotton component, or other component which is absorbent or porous, from a medium printed with the image by a thermal printer using heat activated ink. A polymer surface preparation material and the ink are transferred by the thermal printer to the medium from a ribbon containing the ink and the surface preparation material, without activating the ink or the surface preparation material. The image is transferred from the medium to the substrate by applying sufficient heat and pressure to the medium to activate and transfer the ink and the surface preparation material, with the surface preparation material bonding the ink to the substrate.
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: July 11, 1995
    Assignee: Sawgrass Systems, Inc.
    Inventors: Nathan S. Hale, Ming Xu
  • Patent number: 5302223
    Abstract: An image is permanently printed on an object by capturing the image, printing heat sensitive ink solids by thermal means onto a medium, and then transferring the ink solids from the medium to the object by applying sufficient heat to the ink solids to cause the heat sensitive ink to permanently bond to the object in the desired image. The heat sensitive transfer ink is printed onto the medium by thermal printing means at a temperature which will release and print the ink, but which is below the temperature which will cause the heat sensitive ink to bond permanently. The image is then transferred from the medium onto the object at a higher temperature which will cause the sensitive ink to permanently bond to the object.
    Type: Grant
    Filed: July 2, 1991
    Date of Patent: April 12, 1994
    Assignee: Sawgrass Systems, Inc.
    Inventor: Nathan Hale