Polymeric Gasket Patents (Class 174/358)
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Patent number: 8114204Abstract: The present invention provides a system and method for transmitting information between a device within a housing to a second device, preferably a test or monitoring unit, outside of the housing. There are numerous issues associated with transferring information from within a sealed housing to an external device. In some cases, the use of wires inside the housing may be impractical, due to internal conditions, such as fluid flow, pressure or temperature. In one embodiment, the antenna of the external RF reading device is electrically connected to the dome of the housing. In another embodiment, the device within the housing is electrically connected to a housing component. In another embodiment, the gasket is used to pass information from within the housing to an external device.Type: GrantFiled: September 10, 2010Date of Patent: February 14, 2012Assignee: Millipore CorporationInventors: Michael T. Grzonka, Michael Joens, Aaron Burke
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Patent number: 8014162Abstract: A flexible printed circuit board wherein the insulative substrate 34 having a plurality of conductive layers 36b covered with a protective layer 38 is encircled by a mesh-cloth member 32.Type: GrantFiled: October 5, 2007Date of Patent: September 6, 2011Assignee: Yamaichi Electronics Co., Ltd.Inventor: Hideki Kusamitsu
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Patent number: 7968012Abstract: Disclosed are methods for manufacturing electromagnetic interference shields for use in nonconductive housings of electronic equipment. In one embodiment, the shield may include an electrically nonconductive substrate, such as a thermoformable film, coated with an electrically conductive element, such as an extensible ink or a combination of conductive fibers with an extensible film. In one embodiment, a compressible conductive perimeter gap gasket may be formed by using a form in place process.Type: GrantFiled: March 7, 2008Date of Patent: June 28, 2011Assignee: Laird Technologies, Inc.Inventors: Martin L. Rapp, Jeff McFadden, Frank T. McNally
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Patent number: 7811365Abstract: The present invention provides a system and method for transmitting information between a device within a housing to a second device, preferably a test or monitoring unit, outside of the housing. There are numerous issues associated with transferring information from within a sealed housing to an external device. In some cases, the use of wires inside the housing may be impractical, due to internal conditions, such as fluid flow, pressure or temperature. In one embodiment, the antenna of the external RF reading device is electrically connected to the dome of the housing. In another embodiment, the device within the housing is electrically connected to a housing component. In another embodiment, the gasket is used to pass information from within the housing to an external device.Type: GrantFiled: October 16, 2006Date of Patent: October 12, 2010Assignee: Millipore CorporationInventors: Michael T. Grzonka, Michael Joens, Aaron Burke
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Patent number: 7791902Abstract: A system for protecting electronic components to be disposed inside a computer housing comprising a gliding connector aligner for disposing inside the housing. The aligner has a central flat surface to be disposed over electronic components and a plurality of appendages with at least one nub each disposed at an opposing end to that of the central surface. The appendages are substantially perpendicular to the flat surface. An EMC gasket is also provided around the housing. The gasket in one embodiment has a plurality of portions with each portion having a central support line from which a plurality of complementary spring fingers emanates. The portions are connected to one another via a tab such that said gasket can be stretched around all housing corners such that said spring fingers from different portions are placed in a substantially perpendicular direction to one another.Type: GrantFiled: November 29, 2007Date of Patent: September 7, 2010Assignee: International Business Machines CorporationInventor: Michael T. Peets
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Publication number: 20100214713Abstract: Disclosed is a laminate sheet including a polymer resin layer; and at least one metal foil layer laminated on one surface or both surfaces of the polymer resin layer, which is applied to shield electromagnetic waves, and/or to ground static electricity.Type: ApplicationFiled: April 24, 2008Publication date: August 26, 2010Applicant: Nano Interface TechnologyInventor: Jin-Ho Song
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Patent number: 7622407Abstract: A multiplanar, conductive gasket material having a foam core, a conductive web layer comprising a blended mixture of conductive fibers and nonconductive fibers, and a plurality of blended mixture fibers interspersed through the foam core. The blended mixture fibers are heat set within the gasket material.Type: GrantFiled: February 3, 2006Date of Patent: November 24, 2009Inventor: Joseph J. Kaplo
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Patent number: 7589284Abstract: An EMI shielding material is provided for making EMI shielding gaskets, coating and other articles. The EMI shielding material includes a non-conductive polymer, an inherently conductive polymer and a conductive metal powder. These components are intimately combined to prepare EMI shielding materials having superior electrical and mechanical performance when used in applications such as housings for electronic components.Type: GrantFiled: September 12, 2006Date of Patent: September 15, 2009Assignee: Parker Hannifin CorporationInventors: Christopher L. Severance, Douglas Nobbs, John D. Reynolds
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Publication number: 20090141469Abstract: A system for protecting electronic components to be disposed inside a computer housing comprising a gliding connector aligner for disposing inside the housing. The aligner has a central flat surface to be disposed over electronic components and a plurality of appendages with at least one nub each disposed at an opposing end to that of the central surface. The appendages are substantially perpendicular to the flat surface. An EMC gasket is also provided around the housing. The gasket in one embodiment has a plurality of portions with each portion having a central support line from which a plurality of complementary spring fingers emanates. The portions are connected to one another via a tab such that said gasket can be stretched around all housing corners such that said spring fingers from different portions are placed in a substantially perpendicular direction to one another.Type: ApplicationFiled: November 29, 2007Publication date: June 4, 2009Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventor: Michael T. Peets
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Publication number: 20090084600Abstract: EMI shielding gaskets prepared by coating a resilient nonconductive core gasket with a coating or ink containing conductive nanoparticles. The coating layer can be applied at a thickness of 10 microns or less to achieve shielding levels comparable to conventional coatings which are typically an order of magnitude thicker.Type: ApplicationFiled: September 30, 2008Publication date: April 2, 2009Applicant: PARKER HANNIFIN CORPORATIONInventor: Christopher L. Severance
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Patent number: 7488900Abstract: A gasket generally includes a base member having an inner surface and an outer surface, and a top member having an inner surface and an outer surface. The gasket also has first and second oppositely-disposed lateral members curving generally inwardly relative to each other and connecting the base member to the top member such that a spaced distance separates the base member's inner surface from the top member's inner surface. The first and second lateral members, base member, and top member collectively define a generally trapezoidal profile with four generally rounded corner portions at about the intersections of the first and second lateral members with the base member and top member.Type: GrantFiled: September 22, 2006Date of Patent: February 10, 2009Assignee: Laird Technologies, Inc.Inventor: James E. Kline
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Patent number: 7476815Abstract: A gasket for an electronic device for providing shielding against electromagnetic interference. The gasket is intended to be mounted between a first structural part and a second structural part of the electronic device. The gasket comprises conductive sealant paste and a carrier structure on which the sealant paste rests. The conductive sealant paste rests on the carrier structure as sealant paste areas such that the sealant paste areas are at apertures comprised by the carrier structure that perforate the carrier structure, being supported on the carrier structure and thus generating galvanic connections through said sealant paste areas at the apertures perforating the carrier structure from a first side of the carrier structure to a second side of the carrier structure.Type: GrantFiled: July 1, 2005Date of Patent: January 13, 2009Assignee: Nokia CorporationInventor: Jouko Vesa
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Publication number: 20090008147Abstract: A seal including a base and a conductor mounted to conduct current from a source disposed on a first side of said base to a sink disposed on a second side of said base. In the illustrative embodiment, the base is annular (ring-shaped) and fabricated of airtight, watertight and/or electrically insulating and/or conductive material such as rubber, TeflonĀ®, silver impregnated TeflonĀ®, or other suitable substance. In the illustrative embodiment, the conductor is a single strip of conductive material and the base has a recess to allow for deflection thereof. In the best mode, plural conductors are mounted within the annular base. Each conductor has a brush at each end thereof. The brushes are provided by a split(s) at the end of each strip effective to create multiple fingertips. Each strip is secured at an angle in a slot in the base and retained further by an anchor. The anchor is integral with the strip and transverse to the longitudinal axis thereof.Type: ApplicationFiled: July 5, 2007Publication date: January 8, 2009Inventors: James D. Strayer, Daniel P. Brown, Patricia S. Dean
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Publication number: 20080265908Abstract: A shielding apparatus for electromagnetic testing includes a platform, a lid forming a cavity, a driving unit, and an elastic gasket attached to a bottom of the lid around a rim adjacent the cavity. The platform is for placing an electronic device to be tested. The lid is for covering the platform to define a closed space. The driving unit is for lifting and lowering the lid. The gasket is for being compressed and filling gaps between the lid and the platform when the platform covers the lid.Type: ApplicationFiled: December 20, 2007Publication date: October 30, 2008Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: SHEN-KWANG HSIEH, KUO-CHIH KUO
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Patent number: 7423217Abstract: A housing assembly is provided that has a case including an open end and a flange extending around at least a portion of the open end. The flange defines at least one reduced area extending into a portion of the flange, and a gasket is disposed around the flange. Preferably, the gasket includes a first sealing portion, a second sealing portion, an internal groove for receiving the flange, and at least one member extending into the internal groove and into the at least one reduced area of the flange. In one form, the reduced area is an aperture, and the member of the gasket is a support that extends all the way through the flanges, thereby providing a secure engagement between the gasket and the case during operation. Methods of manufacturing the housing assembly are also provided.Type: GrantFiled: February 13, 2007Date of Patent: September 9, 2008Assignee: Watlow Electric Manufacturing CompanyInventors: Robert Pape, Larry E. Tiedemann, Theodore T. Von Arx
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Patent number: 7423216Abstract: A gasket is provided that includes a first sealing portion defining an angled profile and a second sealing portion. A plurality of beads are disposed along the angled profile of the first sealing portion, and a plurality of ribs are disposed along the second sealing portion, thus providing a dual action sealing gasket. The gasket is preferably employed in an electrical housing assembly for a power controller system, wherein the housing assembly comprises a case having an open end, a cover for closing the open end of the case, and a mounting collar disposed around the case for mounting the case to a panel. The gasket is secured to the case proximate the open end such that when the cover is mounted to the open end of the case, the plurality of beads are elastically deformed by the cover and the plurality of ribs are compressed against the panel.Type: GrantFiled: January 23, 2006Date of Patent: September 9, 2008Assignee: Watlow Electric Manufacturing CompanyInventors: Robert Pape, Larry E. Tiedemann, Theodore T. Von Arx
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Patent number: 7402761Abstract: Disclosed is an electric conductive gasket including: an electric conductive sheet having a natural pulp base, a soft aluminum foil adhered to a surface of the natural pulp base with an adhesive being interposed therebetween, and a hot melt layer formed on the other surface of the natural pulp base; and a nonconductive elastic member overlapped to be continuously encompassed by the electric conductive sheet, to be adhered by the hot melt layer.Type: GrantFiled: May 26, 2006Date of Patent: July 22, 2008Assignee: Joinset Co., Ltd.Inventor: Sun-Ki Kim
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Patent number: 7375291Abstract: A strip gasket utilizing a low closure force on an enclosing face for shielding electromagnetic interference is disclosed. The strip gasket includes an outer surface and an inner surface. The inner surface provides a hollow cross section region. Bending moments are created on surface peripheries of the inner surface and the outer surface, or both, to provide a low closure force on an enclosing face. The bending moment results in an increased surface area of the strip gasket providing a low resistance. Cauchy's stress analysis reveals that a lower force is required to compress the strip gasket as compared to conventional strip gaskets.Type: GrantFiled: May 18, 2006Date of Patent: May 20, 2008Assignee: Parker-Hannifin CorporationInventor: John C. Ariel
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Patent number: 7355857Abstract: A receptacle assembly is provided having a gasket interposed between a heat sink and the receptacle, in order to provide EMI shielding and limit leakage from an opening in the receptacle that allows the heat sink to engage an electronic module inserted in the receptacle cavity. The heat sink may have a groove in which the gasket is mounted and upon mounting the heat sink to the receptacle, the gasket surrounds the opening in the receptacle and provides a resilient shield to maintain a seal during movement of the heat sink due to insertion of the electronic module within the receptacle.Type: GrantFiled: February 7, 2006Date of Patent: April 8, 2008Assignee: Methode Electronics, Inc.Inventors: Alexandros Pirillis, Joseph R. Llorens
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Publication number: 20080078574Abstract: A gasket is interposed between a circuit board that generates electromagnetic waves and a conductive member, and includes an elastic member separating the circuit board from the conductive member. The gasket is electrically connected with the circuit board by a conductive layer to receive the electromagnetic waves from the circuit board. The conductive layer is covered with an insulating layer except for a contact area where the conductive layer is coupled with the circuit board. The insulating layer blocks the electromagnetic waves received from the circuit board. The electromagnetic wave noise of a display apparatus is reduced even if a contact failure occurs between the gasket and a top chassis.Type: ApplicationFiled: September 21, 2007Publication date: April 3, 2008Inventors: Ha-Yun Kang, Gun-Ho Kim, Jae-Kook Kim