Parker-hannifin Corporation

Other

Chomerics, Inc.

Russell T. Lucia

John P. Kalinoski

John E. Soron

Michael H. Bunyan

George R. Watchko

Paul R. Vilandre

Rudolf I. Shvartsman

John P Kalinoski

Michael H Bunyan

George R Watchko

Rudolf I Shvartsman

John E Soron

Paul R Vilandre

Russell T Lucia

A form-in-place, electrically-conductive gasket is disclosed. The gasket, foamed, gelled or unfoamed is made of one or more elastomer resins, such as silicone urethane and/or thermoplastic block copolymers and is either filled with a conductive filler and lined onto a desired substrate or lined onto the substrate unfilled and then coated with a conductive outer layer, such as a silver filled elastomer or a conductive flocked layer. A process and system for making the gaskets are also disclosed.

Form-in place EMI gaskets

A form in place conductive gasket is disclosed. The gasket, foamed, gelled or unfoamed is made of one or more elastomer resins, such as silicone urethane and/or thermoplastic block copolymers and is either filled with a conductive filler and lined onto a desired substrate or lined onto the substrate unfilled and then coated with a conductive outerlayer, such as a silver filled elastomer or a conductive flocked layer. A process and system for making the gaskets are also disclosed.

Form-in-place EMI gaskets

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.

Apparatus for forming a gasket

An electrically-conductive, corrosion-resistant EMI shielding gasket having an EMI shielding effectiveness of at least about 80 dB at between about 10 MHz and 10 GHz. The gasket is formed-in-place on a surface of a substrate as applied to such surface in a form-stable bead of a fluent polymeric reaction system and cured thereon under substantially atmospheric pressure. The reaction system has a strip volume resistivity of from about 500-1000 m.OMEGA.-cm and is admixture of: (a) an elastomeric resin binder component; and (b) an electrically-conductive filler component of nickel-coated graphite particles. The substrate surface may be that of a housing or other enclosure for electronic components.

Corrosion-resistant, form-in-place EMI shielding gasket

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.

Method for forming an EMI shielding gasket

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Chelmsford, MA, United States of America

John P Kalinoski