Patents by Inventor Rudolf I. Shvartsman

Rudolf I. Shvartsman 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).

  • Patent number: 6056527
    Abstract: An apparatus for forming an EMI shielding gasket. The gasket is a formed-in-place gasket which is deposited by an extruder. The gasket material is a fluent polymeric material having a conductive particles disposed therein. The fluent polymeric material is supplied to the extruder by a material supply system having several canisters and a mixing chamber. The fluent polymeric material is fed to a chamber in the extruder. Pressure is applied to the fluent polymeric material by a pressure supply system which includes a source of positive pressure and negative pressure, and a control module for selectively supplying positive pressure and negative pressure to the extrusion chamber.
    Type: Grant
    Filed: February 14, 1997
    Date of Patent: May 2, 2000
    Inventors: Michael H. Bunyan, John P. Kalinoski, Russell T. Lucia, Paul R. Vilandre, George R. Watchko, Rudolf I. Shvartsman, John E. Soron
  • Patent number: 5641438
    Abstract: A method for forming an EMI shielding gasket gasket. The gasket is a formed-in-place gasket which is deposited by an extruder. The gasket material is a fluent polymeric material having a conductive particles disposed therein. The fluent polymeric material is supplied to the extruder by a material supply system having several canisters and a mixing chamber. The fluent polymeric material is fed to a chamber in the extruder. Pressure is applied to the fluent polymeric material by a pressure supply system which includes a source of positive pressure and negative pressure, and a control module for selectively supplying positive pressure and negative pressure to the extrusion chamber.
    Type: Grant
    Filed: January 24, 1995
    Date of Patent: June 24, 1997
    Inventors: Michael H. Bunyan, John P. Kalinoski, Russell T. Lucia, Paul R. Vilandre, George R. Watchko, Rudolf I. Shvartsman, John E. Soron
  • Patent number: 4781782
    Abstract: A taping head for applying a film of pressure sensitive adhesive to a receptor surface has a drive means for driving the adhesive to the applicating roller by driving a liner supporting the adhesive, and a dancing roll positioned between the apparatus for stripping the liner from the adhesive and the applicating roller adjusts the speed of movement of the film of adhesive to match the same with the application of the adhesive. The applicator is pressed against the receptor surface under the control of a compression device and a cutting device for adhesive severs the adhesive below the applicating roller and an air nozzle maintains the cut end of the adhesive in a position for subsequent application.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: November 1, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Robert A. Luhman, Kent S. Tarbutton, Rudolf I. Shvartsman, Donald J. Geisel, Richard J. Pilarski