Abstract: An electronic device which includes a cover, a base coupled to the cover to create an enclosure, a conductive layer positioned between the cover and the base and arranged to reduce radiation from entering the enclosure, and a gasket positioned between the cover and the base to create a seal and positioned between the conductive layer and the enclosure.

Abstract: A fabric over foam electromagnetic interference gasket has a body of indefinite length, and includes a layer of dielectric material thereon. The gasket may be compressed between two substrates and provide electrical conductivity in one axis and EMI shielding and nonconductivity in a perpendicular axis.

Abstract: A method and structures are provided for implementing press-lock electromagnetic compatibility (EMC) gaskets. A gasket includes a plurality of fasteners received through a plurality of corresponding mounting apertures in a perforated support surface for precise placement, and retention without adhesives. The corresponding mounting apertures have a diameter smaller than 1/20th of a wavelength of the highest frequency to be suppressed to remain independent of the shielding required. The gasket defines a cavity receiving compliant foam, and includes an absorber.

Abstract: An EMI shielding gasket having enhanced corrosion protection and force deflection is provided. The gasket has a body formed from an electrically conductive material with outwardly extending projections from one or both surface portions thereof. A non-conductive polymer gel is applied to the spaces between the projections for protection against corrosion. The gasket is particularly adapted for use in external aluminum aircraft surfaces which are exposed to harsh environmental conditions.

Abstract: Compressible grounding pads with two conductor layers separated by a compressible foam layer comprise: (A) A first conductor layer, e.g., copper foil; (B) A first adhesive layer in direct contact with a part of the first conductor layer, the first conductor layer extending beyond the first adhesive layer; (C) A foam layer in direct contact with one facial side of the first adhesive layer; (D) A second adhesive layer in direct contact with the opposite facial side of foam layer; (E) A second conductor layer, e.g., copper foil, in direct contact with the second adhesive layer, the second conductor layer extending beyond the second adhesive layer such that the second conductor layer joins with the first conductor layer; (F) An electrically conductive third adhesive layer in direct contact with the facial surface opposite the facial surface that is in direct contact with the second conductor layer; and (G) An optional release liner in direct contact with the third adhesive layer.

Abstract: Methods and apparatus for grounding a chamber isolation valve for a processing system are provided. In one embodiment, a grounded chamber isolation valve for a plasma processing system is described. The chamber isolation valve includes a door and a bracing member movably attached to and opposing the door, and at least one electrically conductive member in electrical communication with the door, the at least one electrically conductive member comprising one or more reaction bumpers disposed on the bracing member that are adapted to contact at least one grounded component of the plasma processing system when the door is in the closed position.

Abstract: A gasket generally includes upper and lower members and first and second oppositely-disposed lateral members. The first and second oppositely-disposed lateral members connect the lower member to the upper member such that a spaced distance separates the lower member's inner surface from the upper member's inner surface. The first and second lateral members, lower member, and lower member may collectively define a generally trapezoidal profile.

Abstract: Enclosures for at least partially shielding an at least partially enclosed volume from electromagnetic interference and various methods for producing such enclosures are described. Enclosures for at least partially shielding an at least partially enclosed volume from electromagnetic interference may be prepared by bonding at least two sections of carbon foam with a carbonizable binder to provide an enclosure, wherein said enclosure defines an at least partially enclosed volume, and carbonizing the carbonizable binder to provide an electrically conductive carbon char. An enclosure for at least partially shielding an at least partially enclosed volume from electromagnetic interference may include at least two sections of electrically conductive carbon foam interconnected by an electrically conductive carbon char. The electrically conductive carbon char is substantially electrically continuous with the sections of electrically conductive carbon foam.

Abstract: 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, Teflon®, silver impregnated Teflon®, 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.

Abstract: According to various aspects, exemplary embodiments are provided of fabric-over-foam EMI gaskets. In one exemplary embodiment, a fabric-over-foam EMI gasket generally includes a resiliently compressible foam core and an outer electrically-conductive fabric layer. At least one slit extends generally transversely across an upper surface portion of a longitudinally extending region of the gasket.

Abstract: An electrically conductive gasket for paint masking. In one embodiment of the present invention, the gasket includes a core, an electrically conductive cover that is applied to the core with adhesive. A film of material is attached to the outer surface of the electrically conductive cover which functions as a removable mask. The various embodiments of the gasket may be fabricated from materials capable of withstanding relatively high temperatures and may be provided in a variety of different shapes.

Abstract: A gasket for shielding a seam between two surfaces includes a resilient member, a first electrode, a second electrode and a conductive layer. The resilient member has a first side and an opposite second side. The first electrode is disposed on the first side of the resilient member. The second electrode is disposed on the second side of the resilient member. The conductive layer envelops at least a portion of the resilient member, the first electrode and the second electrode. The resilient member includes a material that is compressed when a first potential is applied between the first electrode and the second electrode and that is decompressed when a second potential, different from the first potential, is applied between the first electrode and the second electrode.

Abstract: Gate with an at least partially peripheral sealing means, with a retaining strip made from metal, within which the seal is arranged, wherein the seal may be activated pneumatically, with an adjustable plate which is located above the seal and is guided by guide means so as to be adjustable relative to the retaining strip, with an electrically conductive fabric strip which electrically connects the retaining strip to the plate, and with spring contacts which are arranged on the plate, are electrically conductive and may be brought into abutment with the rabbet of the installation frame provided on the building side.

Abstract: An electromagnetic shielding gasket is provided, which is capable of reducing the amount of projection from the inner surface of a first opposing wall having gasket holding holes and is less likely to come off through the gasket holding holes in the direction from the inner surface side toward the outer surface side of the first opposing wall. A communication device as an electronic device has a device body having a plural number of sub-casings and electromagnetic shielding gaskets 1. A first opposing wall 102a disposed on the sub-casing of the device body includes a plural number of gasket holding holes 104 and gasket guiding holes. The electromagnetic shielding gasket 1 has a gasket body 2 and a plural number of fitting parts 4 and come-off stopping parts 3. The fitting parts 4 are guided in the gasket guiding holes and then fitted in the gasket holding holes.

Abstract: Enclosures and gasket assemblies for reducing EMI for computer systems and other electronic devices are disclosed. In an exemplary embodiment a gasket assembly for reducing EMI may comprise a soft core sizable to extend along at least the length of an opening in an EMI housing. The gasket assembly may also comprise a plurality of fingers positionable at spaced-apart positions along the entire length of the opening in the EMI housing, the plurality of fingers maintaining conductivity between mating surfaces of the EMI housing.

Abstract: 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.

Abstract: 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.

Abstract: A HF sealing strip (1) for electromagnetically shielded, insertable electronic modules comprises a core (2) of an elastically deformable material and a cover (3) of a flexible, conductive textile fabric. The cross section of the core (2) corresponds to an isosceles triangle with obtuse angle at the top. One section of the cover (3) forms a level contact surface (4), to which adhesive strips (7a; 7b; 8) are attached. In the region of the edges for the contact surface (4), the cover (3) of a textile fabric is used to form double-layer flaps (6a, 6b) without an elastic core. These flaps (6a, 6b) form reinforced, level outside edges of the HF sealing strip (1), which can thus better withstand shearing forces transverse to the contact surface (4).

Abstract: A method and apparatus for grounding a chamber isolation valve are provided. Generally, the method makes use of an electrically conductive elastomeric member or members to effectively ground a chamber isolation valve and/or isolation valve door while avoiding metal-to-metal contact between moving parts in the processing system. In one embodiment, the elastomeric member is attached to and in electrical communication with the door of the chamber isolation valve. The elastomeric member is brought into contact with a grounded component of the plasma processing system when the door is in the closed position. In another embodiment, the conductive elastomeric member is attached to a bracing member of the isolation valve and is brought into contact with a grounded component of the plasma processing system when the bracing member is deployed to hold the isolation valve door in place during substrate processing. Other configurations are also provided.

Abstract: An electrically conductive gasket and methods of manufacturing electrically conductive gaskets. In one embodiment, the gasket includes a core that supports an electrically conductive cover thereon. The electrically conductive cover may be attached to the core or portions of the core by one or more adhesives used to also affix the gasket to an electrically conductive object. In other embodiments, a mechanical fastener may be affixed to the core by the one or more adhesives employed to affix the electrically conductive cover to the core.

Abstract: A gasket for shielding a seam between two surfaces includes a resilient member, a first electrode, a second electrode and a conductive layer. The resilient member has a first side and an opposite second side. The first electrode is disposed on the first side of the resilient member. The second electrode is disposed on the second side of the resilient member. The conductive layer envelops at least a portion of the resilient member, the first electrode and the second electrode. The resilient member includes a material that is compressed when a first potential is applied between the first electrode and the second electrode and that is decompressed when a second potential, different from the first potential, is applied between the first electrode and the second electrode.

Abstract: An electromagnetic wave shielding gasket comprising a gasket body integrated with an electroconductive non-woven fabric or woven fabric, a seal part being provided, while avoiding the area of the electroconductive non-woven fabric or woven fabric, where the gasket body, preferably a gasket body with a lip-shaped projection, is integrated at the edge with the electroconductive non-woven fabric or woven fabric, and particularly preferably an annular gasket body with a lip-shaped projection is integrated at the inner peripheral edge with the outer peripheral edge of the annular body of the electroconductive non-woven fabric or woven fabric.

Abstract: 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.

Abstract: 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.

Abstract: An apparatus that has housing for containing objects. The housing has two heat-conducting partial-boundaries having an interface between them. The apparatus also has a medium for enhancing heat transfer across the interface.

Abstract: An Electromagnetic Interference (EMI) gasket formed of a hollow, conductive material which is mechanically fastened to a metal support layer. The assembly can be installed using standard high speed SMT pick and place equipment.

Abstract: The transferrable EMI gasket assembly utilizes a carrier with a pair of arms, each attached to a back panel by a hinged connection and extending in the same direction to overlie one another. The conductive, deformable gasket material is attached to the carrier and positioned adjacent the back panel. The assembly is collapsed for installation with the back panel overlying one of the arms hinged thereto to present a reduced height. The assembly is placed in the operative position by moving one arm relative to the other to pivot the carrier back panel to a near right angle position with respect to the carrier arms. In the operative position, the gasket material is compressed and deformed against the confronting surfaces to effect the EMI seal while the biasing force of the compressed gasket material, in the preferred embodiment, secures the carrier arms together.

Abstract: A V-seal EMC gasket assembly is provided for implementing precise placement, conduction and retention, while eliminating the need for adhesives. A V-seal EMC gasket and a supporting member include cooperating notch and protrusion features for positioning and retaining the V-seal EMC gasket on the supporting member. A distal end of the V-seal EMC gasket is received and retained within angled stops formed in the supporting member. A retaining clip member holds the V-seal EMC gasket in contact engagement with the supporting member. The protrusion features of the supporting member are received through corresponding mating slots formed near a first end of the retaining clip member, for example, in press-fit engagement. The angle stops formed in the supporting member hold a second end of the retaining clip member with the V-seal EMC gasket clamped and retained in position between the supporting member and the retaining clip member.

Abstract: A shielding strip generally includes a longitudinally extending central region and at least one transversely extending slot along the longitudinally extending central region. The slot has at least one enlarged portion at about at about a predetermined area of high stress concentration.

Abstract: A conductive seal that is formed on a first sealing surface by extruding an elastically curing material intermixed with conductive particles is in addition intermixed with magnetic particles. After applying the material to the first sealing surface, its cross section profile is expanded to an adjustable level towards a second sealing surface and/or sealing rims are molded to it by a magnetic force from an electromagnetic plate. The magnetic and conductive particles are preferably concentrated in the marginal sections, particularly due to magnetic forces that act on the sealing roving in the extrusion process.

Abstract: A conductive electromagnetic interference (EMI) shielding gasket having a compressible non-conductive core enwrapped with a conductive sheath. The sheath is a laminate formed by laminating a conductive metal foil at least 0.2 mils thick to a flexible non-conductive substrate, preferably a non porous polyester film.

Abstract: A method for making a conductive gasket for use in apparatus to block the exit or entry of electromagnetic interference (EMI) between adjacent metal surfaces of the apparatus. The gasket is formed at least in part by a polymeric film having an outward facing surface embossed so as to provide a plurality of peaks distributed over the surface. A metal is coated, by vapor deposition, onto the surface so as to over lie the peaks.

Abstract: An electromagnetic interference (EMI) protective elastic plate has a contact wall having a pair of upper sidewalls extending downwardly and perpendicularly from two sides thereof A connect wall extends downwardly and forwardly from an end of the contact wall and is formed with an upper bending portion therebetween. The other end of the connect wall forms a lower bending portion with a backward concave. A solder wall connects with the lower bending portion and has a pair of lower sidewalls extending upwardly and perpendicularly from two sides thereof. The upper sidewalls and the lower sidewalls are slidably buckled to each other.

Abstract: In a housing having a sealing structure providing an electromagnetic wave shielding function and a waterproof function between first and second housing components (1, 2) which define a space therebetween, the sealing structure includes a groove portion (12) made in the first housing component to extend around the space, a first seal member (13) formed by being directly applied into the groove portion, a second seal member (14) formed by being applied onto the first seal member, and a pressing portion (16) formed on the second housing component to correspond to the groove portion. The first seal member has relatively low hardness to be compressible. The second seal member has relatively high hardness, flexibility, and conductivity. When the first and second housing component are combined to each other, the pressing portion pressingly deforms the second seal member so as to be brought into surface contact with the second seal member. The first and second housing component are made of magnetic metal.

Abstract: A novel conductive gasket including an internal contact-enhancing strip provides improved contact performance in electromagnetic interference prevention and other applications. A metal mesh or conductive plastic covers a substantially rigid internal strip that includes protrusions that either bend or penetrate the gasket cover in order to enhance contact with another conductive surface. The cover may include holes aligned with the protrusions so that the protrusions pass through the holes when the gasket is compressed, or the protrusions may penetrate a mesh or plastic cover. An internal foam piece may be provided behind the internal strip to restore the shape of the when compressive force is removed and a second internal foam piece may be provided between the strip and the cover for maintaining the shape of the gasket.

Abstract: A method and apparatus for providing an electromagnetic conduction seal in a device disposed within an electrical enclosure includes a metal EMC gasket defined by a first end an and opposite second end. The first end is operably secured to the device and at least the second end is allowed to float while remaining in electrical contact with the device. A lock strip is fixed to the device and is configured to provide limits of deflection of an intermediate portion of the gasket intermediate the first and second ends and captivate at least one floating end of the gasket. The intermediate portion provides an electromagnetic conduction seal between the device and with at least one of another device and/or the electrical enclosure.

Abstract: A gasket comprises an edge, a first end and a second end bounding the edge, and a plurality of slits spaced between the first and second ends. At least some of the slits are at one or more oblique angles to the edge. Therefore, a reduced risk of snagging is present when mating one gasket with another with a sliding motion. A method for installing a first electronic device adjacent to a second electronic device comprises coupling a first gasket to the first electronic device and coupling a second gasket to the second electronic device. The first device is placed near the second device such that the first and second gaskets contact with a sliding motion. When in contact, the slits of the first gasket are not parallel with the slits of the second gasket.

Abstract: A combination EMI shielding and environmental sealing gasket construction and method for its manufacture. The gasket includes at least one electrically-conductive EMI shielding gasket member, and at least one environmental sealing gasket member. The shielding gasket member, which may be in the form of a strip, has a lengthwise extent and an outer periphery having interstitial spaces, such as between the fibers of a metal wire or other fiber mesh or fabric, through a widthwise extent thereof. The sealing gasket member extends along the lengthwise extent of the shielding gasket member and is formed, such as by being dispensed to foam or otherwise formed-in-place along an adjacent side of the strip, of an elastomeric foam or other material which penetrates into at least a portion of the interstitial spaces of the shielding gasket member to bond the shielding gasket member and the sealing gasket member into an integral structure.

Abstract: The object of the invention is a device and an elongated EMI gasket (20) made for an electroconductive wire, used for its EMI shiekding (electromagnetic interference). The EMI gasket (20) comprises, on a first plane, a bending portion (23a, 23b) that forms a first flat part (23) for attaching the EMI gasket (20) to a device to be EMI shielded so that the EMI gasket touches the device to be EMI shielded with its surface, which is according to said first plane. Typically, the attachment is carried out by pushing the EMI gasket (20) into a groove (26) adapted in connection with the joint to be EMI sealed. EMI tightness is achieved by pressing together parts (21, 22) of the device to be EMI shielded, whereupon the EMI gasket (20) attached in between them forms an electric contact at short distances between said parts.

Abstract: The object of the invention is an elongated EMI gasket (electromagnetic interference), made from an electroconductive material, which is characterised in that the cross-section of said wire (20-23) comprises a shape (24,25, 27) that protrudes from a specific basic cross-section. The object of the invention is also a device wherein the EMI gasket is installed at a joining point between different parts of the device for preventing electromagnetic interference from penetrating said joining point. The shape (24, 25, 27) that protrudes from the specific basic cross-section presses effectively against the joint surfaces forming a permanent contact between the joint surfaces.

Abstract: In one embodiment, the present invention is directed to a system for shielding electromagnetic energy. The system comprises an electromagnetic interference (EMI) gasket comprising at least one longitudinal member that is operable to exert a spring force upon deflection and at least one lance member; and a chassis comprising a lip member, the lip member being operable to accept the EMI gasket, a base member that is operable to deflect the at least one longitudinal member when the EMI gasket is placed over the lip member, and a locking member that is adapted to latch the at least one lance member in a latched position when the EMI gasket is placed over the lip member, wherein the spring force is operable to retain the at least one lance member in the latched position and the spring force is operable to facilitate electrical contact between the base member and the EMI gasket.

Abstract: A magnetic gasket that fastens together components in an electronic device. An adhesive, such as a pressure sensitive adhesive, is attached to a magnetic strip. An electrically conductive gasket, such as a soft foam core with a conductive fabric wrap, is also attached to the magnetic strip. The adhesive attaches the magnetic gasket to one component, and the magnetic strip holds another metallic component firmly in place. This compresses the electrically conductive gasket, filling the gap between the components with an electrical connection that reduces EMI.

Abstract: A conductive gasket includes: a non-conductive, elastic core; a flexible conductive cloth enclosing an outer surface of the core; a hot-melt adhesive inserted between the core and the conductive cloth to attach the core and the conductive cloth; a pressure sensitive adhesive (PSA) tape attached along the gasket to cover the ends of the conductive cloth; and a ridge formed on the PSA tape attached side of the conductive cloth. The conductive gasket is capable of forming a conduction path at all times between conductive members and enhances EMI/RFI shielding efficiency and contact reliability.

Abstract: An electrically conductive flexible polyurethane foam including a polyurethane and at least one conductive filler dispersed therein in an amount effective to provide EMI/RFI shielding, wherein the polyurethane comprises an isocyanate component to active hydrogen component in a ratio of at most about 0.20:1. Preferably, the foam has compression deflection value at 50% compression of at most about 25 psi, a foam density of at most 0.95 g/cm3 and/or noise shielding effectiveness at a frequency of about 20 to about 1000 MHz of at least about 10 dB.

Abstract: A gasket device for shielding electromagnetic radiation is comprised of several alternating areas of two different elastomeric materials, one of which is conductive. The areas of conductive material are substantially thinner than the other areas and provide a conductive path from one side of the gasket to the other.

Abstract: The object of the invention is a device and an elongated EMI gasket (20), made from an electroconductive wire, used for its EMI screening (electromagnetic interference). It is characteristic of the EMI gasket that it comprises a groove substantially parallel to the longitudinal direction of the EMI gasket for receiving a piece or its part (43) inside the EMI gasket (20). The piece to be protected against interfering electromagnetic radiation is EMI screened by pushing the EMI gasket (20) against the edge of the piece and by arranging contacts through the EMI gasket between the piece and some electroconductive surface that is close to it.

Abstract: A conductive paste based on an elastomer of the polyoxypolyolefin type or on a member of the polyolefin family is described, provided with an admixture of conductive particles for the production, in the electronics industry, of a sealing element, of a contact element or of a heat-conduction element. This material is particularly suitable for the production of EMI-RFI gaskets, and, compared with materials known hitherto and based on silicone, has improved performance characteristics and environmental properties.

Abstract: A shielding device for reducing electromagnetic emissions from an electronic device includes an abutment segment adapted to abut against a shielding wall of the electronic device, an intermediate segment extending from the abutment segment and cooperating with the abutment segment to define a space for receiving an electrically conductive deformable member, and a shielding segment extending from the intermediate segment to shield a clearance between the shielding wall and an electronic component mounted adjacent to an opening in the shielding wall.

Abstract: The disclosure describes a method of sealing the ends of fabric on a radio frequency interference (RFI) gasket and a description of the gasket made by such method. The method used electrically conductive material to cover a foam interior and then sealing the exposed ends of all six sides of the covering, creating a radio frequency interference (RFI) gasket.

Abstract: A conductive gasket for use in apparatus to block the exit or entry of electromagnetic interference (EMI) between adjacent metal surfaces of the apparatus. The gasket is formed at least in part by a polymeric film having an outward facing surface embossed so as to provide a plurality of peaks distributed over the surface. A metal is coated, by vapor deposition, onto the surface so as to over lie the peaks. This provides the film with a conductive surface. When located between adjacent metal surfaces, abrasion of the metal coating from the peaks over time does not adversely affect the conductive properties of the film surface. This is because the wearing away of the metal from the tops of the peaks exposes a cross section of the metal at the sides of the peaks, which remain in contact with the adjacent metal surfaces of the apparatus.