Patents by Inventor Steven J. Spinelli

Steven J. Spinelli 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).

  • Thermally assisted transfer process for transferring electrostatographic toner particles to a thermoplastic bearing receiver
    Patent number: 5358820
    Abstract: A method is provided for non-electrostatically transferring dry toner particles which comprise a toner binder and have a particle size of less than 8 micrometers from the surface of an element to a receiver. The element comprises a conductive substrate and a surface layer which contains an electrically insulating polymeric binder resin matrix which comprises a crystalline side chain polyester or a block copolyester or copolycarbonate having a crystalline side chain polyester block and the receiver comprises a substrate having a coating of a thermoplastic addition polymer on a surface of the substrate in which the Tg of the polymer is less than approximately 10.degree. C. above the Tg of the toner binder. The method involves contacting the toner particles with the receiver which is heated to a temperature such that the temperature of the thermoplastic polymer coating on the receiver substrate during transfer is at least approximately 15.degree. C.
    Type: Grant
    Filed: November 13, 1992
    Date of Patent: October 25, 1994
    Assignee: Eastman Kodak Company
    Inventors: Douglas E. Bugner, David S. Hays, Jeanne E. Kaeding, Steven J. Spinelli
  • Thermally assisted transfer process
    Patent number: 5334477
    Abstract: A method is provided for non-electrostatically transferring dry toner particles which comprise a toner binder and have a particle size of less than 8 micrometers from the surface of an element to a receiver. The element comprises a conductive substrate and a surface layer which contains an electrically insulating polymeric binder resin matrix which comprises a block copolyester or copolycarbonate having a fluorinated polyether block and the receiver comprises a substrate having a coating of a thermoplastic addition polymer on a surface of the substrate in which the Tg of the polymer is less than approximately 10.degree. C. above the Tg of the toner binder. The method involves contacting the toner particles with the receiver which is heated to a temperature such that the temperature of the thermoplastic polymer coating on the receiver substrate during transfer is at least approximately 15.degree. C.
    Type: Grant
    Filed: November 13, 1992
    Date of Patent: August 2, 1994
    Assignee: Eastman Kodak Company
    Inventors: Douglas E. Bugner, David S. Hays, Jeanne E. Kaeding, Steven J. Spinelli