Abstract: In a conductive member 1, an arm part 21 is bent back from an end of a joint part 11, and a contact part 31 is formed from a portion of the arm part 21, thereby reducing displacement of a contact area between the contact part 31 and a grounding conductor 60 at the time of elastic deformation of the contact part 31. As a result, a desirable grounding condition can be ensured. Also, in such structure, no parts other than the joint part 11 abut on a printed circuit board 50. Consequently, the conductive member 1 can be used on a densely integrated printed circuit board. Furthermore, the contact part 31 is received within a receiving hole of the arm part 21 when elastically deformed. Slippage of the contact part 31 is thus restricted within a predetermined range.

Abstract: In an enclosure having an interface between a fixed portion and a movable portion, an EMI seal mechanism comprises a support mechanism coupled to one of the fixed portion and the movable portion. The support mechanism is positionable from an electrically non-conductive position to an electrically conductive position, wherein the electrically conductive position provides a substantially continuous electrical connection through the enclosure.

Abstract: A EMI shielding gasket for interposition between a first and a second part of a housing or other enclosure. The gasket is supportable on the first part and extends in a longitudinal direction along a first dimension thereof. The profile includes an elongate bearing portion extending axially from a proximal to a distal end contactable by the second part. The bearing portion has an outboard side extending longitudinally intermediate the proximal and distal ends, and an inboard side extending intermediate the proximal and distal ends. The bearing portion is deformable responsive to a compressive force between the first and second parts into a stressed orientation wherein the bearing portion is deflected towards the inboard side and developing in the outboard side a localized high stress region. A stress relief portion is formed in such region which is effective to decrease the compressive force required to deform the bearing portion.

Abstract: An elastic system for preventing electromagnetic interference to a computer central processing is disclosed. Two lateral sides of the contact surface and the welding surface are extended with a vertical upper stopper and a vertical lower stopper; upper portions of the upper stopper and the lower stopper are alternatively arranged. Therefore, each elastic conductive piece has a closed structure. No outer object will be hooked or fall thereinto. A hole is formed on the welding surface. Since the welding surface is combined to the computer mainframe board through a tin glue. Therefore, the computer mainframe board has a preferred sticky force.

Abstract: A gasket for electrical apparatus and the like, operation of which tends to generate or be adversely affected by electromagnetic and radio frequency interference (EMI/RFI), comprising a compressible, electrically conductive core. It may also comprise a flexible, electrically conductive, and substantially abrasion resistant sheath surrounding the compressible core. The apparatus may be sealed against EMI/RFI leakage, noise emission and environmental infiltration and the like.

Abstract: An electromagnetic interference (EMI) shielding gasket. The gasket is formed as having a resilient core member of an indefinite length which is sheathed in an electrically conductive fiber mesh member. A thermoplastic member is incorporated within the fiber mesh member for consolidating at least a portion of the fiber mesh member. The consolidation is effective to maintain the integrity of the fiber mesh member at an end of the gasket when the gasket is terminated to a determinable length.

Abstract: A corrosion resistant gasket for aircraft, and more particularly to encapsulation of a conductive mesh in a pliable fluorosilicone compound that will not become bonded to mating surfaces and will also migrate upon compression during installation to the threads of attaching hardware utilized between the instrument, antenna, and aircraft structure, thereby reducing corrosion through the attaching hardware, by providing a hermetic seal around the periphery of the envelope of the attached device.

Abstract: A corrosion resistant gasket for aircraft, and more particularly to encapsulation of a conductive mesh in a pliable fluorosilicone compound that will not become bonded to mating surfaces and will also migrate upon compression during installation to the threads of attaching hardware utilized between the instrument, antenna, and aircraft structure, thereby reducing corrosion through the attaching hardware, by providing a hermetic seal around the periphery of the envelope of the attached device.

Abstract: An EMI gasket exhibits enhanced compliance in the direction orthogonal to the plane of the circuit board on which a chip or chip-and-socket assembly is mounted. Therefore, the gasket may be used with chips or chip-and-socket assemblies having a variety of heights. In an embodiment, a frame made from a sheet of metal has a planar portion with an opening formed therein. The opening is adapted to fit around a perimeter of an integrated circuit chip. The sheet of metal includes top and bottom planar surfaces. Top and bottom resilient conductive members are attached to the top and bottom planar surfaces, respectively.

Abstract: An EMI gasket (20) includes a plurality of serrations (34) along at least one edge (35, 36). The serrations (34) are arranged side-by-side so that each may be articulated individually. That is, one of the serrations (34) may be displaced significantly out of the plane of the gasket without affecting adjacent serrations. Thus, when the edge of the gasket (20) is compressed between two surfaces which include a discontinuity (40) such as a step or protuberance between them, the serration in contact with the discontinuity is displaced out of the plane of the gasket without displacing adjacent portions of the gasket. Allowing a portion of an EMI gasket (20) to be displaced out of the plane of the gasket without affecting adjacent portions of the gasket substantially reduces or eliminates gaps which occur due to the failure of the gasket to precisely follow the contour of a component.

Abstract: A clip type conductive gasket having a conductive metal finger strip that is fitted to a part of an electric or electronic apparatus to be electrically connected or electrically block electromagnetic interference (EMI) and particularly radio frequency interference (RFI). A conductive elastic body is dispensed on an upper portion of the conductive metal finger strip. According to the clip type conductive gasket, a physical binding force is increased, the electrical conductivity and the contact area is increased so that the contact resistance is lowered. Therefore, the manufacturing cost is lowered.

Abstract: A resilient EMI shielding and/or environmental sealing gasket for interposition between a first interface surface and an oppositely-disposed second interface surface. The gasket is formed of an elongate body of indefinite length which extends along a longitudinal axis. The body includes base and apex surfaces, and opposing first and second lateral surfaces which extend intermediate the base and apex surfaces. The base surface itself extends along the length the body as configured for proximally supporting the gasket on the first interface surface. The apex surface, in turn, extends radially from the longitudinal axis for distal contact with the second interface surface, and further extends along the longitudinal axis as defining a first waveform profile characterized as having a first periodic series of alternating first high and low amplitude intervals.

Abstract: An electromagnetic isolation apparatus for an electronic device such as a portable telephone is provided which includes first and second shield cases and elastic members such as rubber cushions. The first and second shield cases are disposed within a casing of the electronic device to surround at least part of both surfaces of a printed circuit board mounted within the electronic device. The elastic members are interposed between an inner wall of the casing of the electronic device and an outer surface of the first shield case and between the inner wall of the casing and an outer surface of the second shield case to produce elastic pressures urging the first and second shield cases into conductive engagement with the printed circuit board.

Abstract: A metal gasket for preventing leakage of radio frequency signals when mounting shielded radio electronics includes gasket body having a first surface and an opposite second surface and a plurality of spring arms. Each spring arm includes a free proximal portion and a free distal portion and a connection connecting the spring arm to the body portion. Each spring arm is configured so that the distal portion contacts a component proximate the first surface of the body portion and the proximate portion of each spring arm contacts a second component proximate the second surface of the body. Preferably, the distance between adjacent contacts on a component is less than or approximately equal to a predetermined ratio of a shielded radio wavelength.

Abstract: A process seal made of a material such as polytetrafluoroethylene is used as a microwave window in a radar tank level gauge. The periphery of the process seal is surrounded by a metal containment ring that is fitted to the periphery to limit the amount of expansion outwardly of the process seal material as well as provide for localized loading at the periphery for clamping pressures on the seal. Electromagnetic radiation shielding is provided not only by the containment ring, but also by an EMI shielding O-ring mounted in a groove on a sealing end of the containment ring. A process environmental O-ring is carried by the process seal in an outer shoulder groove that is enclosed by the containment ring.

Abstract: An electromagnetic interference shield for use around access panels and doors in electronic equipment enclosures includes a base and profile manufactured from an electrically nonconductive solid material such as a thermoplastic resin polymer. An electrically conductive layer of a metallized fabric is bonded to the profile to provide effective shielding and grounding functions. The underlying polymer provides elastic compliancy and resiliency to the shield.

Abstract: A knitted metalized yarn gasket fashioned from a core, a first tubular layer formed from a hot melt yarn around the core, and a second tubular structure knitted from a conductive yarn and disposed over at least a portion of the first tubular layer and core assembly. The hot melt yarn forming the first tubular layer adheres the second tubular structure to the core such that fraying of the knit gasket is substantially prevented.

Abstract: A gasket includes an elongated strip including a first resilient gasket component and a second resilient gasket component having shielding properties, the first and second gasket components being joined together. A method for making a gasket is also disclosed.

Abstract: An EMI shielding spacer gasket assembly for interposition under a predetermined compressive load within an electronics enclosure between a first surface and an oppositely-disposed second surface of the enclosure. The assembly includes a frame member and an electrically conductive, elastomeric member extending along at least a portion of the perimeter of the frame member as retained on a corresponding peripheral edge surface thereof. The elastomeric member has an outboard side which is compressible axially under the compressive load for providing an electrically conductive pathway between the surfaces of the enclosure. In an uncompressed orientation, the outboard side of the elastomeric member exhibits elongate upper and lower bearing portions which are disposed at a spaced-apart radial distance from the frame member to define a corresponding bending moment arm.

Abstract: A composite gasket for the door of an outdoor, electronic component containing cabinet includes a known type of gasket including an elongated hollow tubing for mounting on a door jamb of the cabinet, and a supplemental gasket of an electrically conductive material fixedly secured to one side of the hollow tubing and coextensive therewith entirely around the periphery of the door jamb. The known gasket provides a weather seal for the door. The supplemental gasket spans the gap between the door and the jamb established by the weather gasket for electrically interconnecting the door to the jamb and for sealing the door joint against electromagnetic radiations. The supplemental gasket is disposed entirely within the weather sealed space of the cabinet when the door is closed, and is so arranged as to provide no interference with the weather seal formed upon closing of the door.

Abstract: An EMI shielding and environmental sealing gasket for interposition between a first substrate and an oppositely-disposed second substrate. The gasket is formed of a resilient, tubular body having a generally continuous interior and exterior surface defining a wall thickness of the gasket therebetween, and including base, arcuate, and lateral members. The base member extends intermediate a first and a second edge and has an inner and outer for contact with the second substrate. The arcuate member, which has an inner surface spaced apart radially from the inner surface of the base member and an outer surface for contact with the first substrate, extends intermediate a first proximal end disposed radially inwardly of the first edge of the base member, and a second proximal end disposed radially inwardly of the second edge of the base member.

Abstract: An electromagnetic interference (EMI) shielding gasket. The gasket is formed as having a resilient core member of an indefinite length which is sheathed in an electrically conductive fiber mesh member. A thermoplastic member is incorporated within the fiber mesh member for consolidating at least a portion of the fiber mesh member. The consolidation is effective to maintain the integrity of the fiber mesh member at an end of the gasket when the gasket is terminated to a determinable length.

Abstract: A cover fitted about the periphery of an opening in a chamber wall is provided with a channel having therein both high frequency sealing elements which prevent escape of electromagnetic radiation, and a vacuum sealing element. The HF sealing elements are spaced apart by less than 1/4 of the minimum wavelength .lambda. to be shielded against, and are preferably held in the channel by a profiled element which also holds the vacuum sealing element. Alternatively, the channel may be provided in the chamber wall, or the sealing elements may he held in place without any channel.

Abstract: A knitted metalized yarn gasket fashioned from a core, a first tubular layer formed from a hot melt yarn around the core, and a second tubular structure knitted from a conductive yarn and disposed over at least a portion of the first tubular layer and core assembly. The hot melt yarn forming the first tubular layer adheres the second tubular structure to the core such that fraying of the knit gasket is substantially prevented.

Abstract: An electromagnetic interference (EMI) shielding gasket for mounting on a substrate having a surface. The gasket is formed of a resilient, elongate core member extending along a central longitudinal axis and having an outer circumferential surface defininga cross-sectional profile, and an electrically-conductive outer member having an inner and an outer surface and extending from a first distal end to a sheathing portion. The sheathing portion of the outer member covers a portion of the circumferential surface of the core member and extends from a first proximal end to a second proximal end. The first distal end of the outer member and the first proximal end of the sheathing portion thereof define a first inner shear surface therebetween which is attachable to the substrate. The uncovered portion of the circumferential surface of the core member defines an interface surface for disposition on the surface of the substrate.