Abstract: This invention relates to a hydraulic seal arrangement between two, more particularly co-rotating shafts of especially a gas turbine engine, where the radially outer shaft when viewed with reference to the shafts' axis of rotation has an annulus extending radially outward along its circumference into which the radially inner shaft when viewed with reference to the shafts' axis of rotation projects with a web that extends radially outward across its circumference, and which annulus can through an inlet area be filled siphon-fashion under centrifugal effect with a hydraulic medium at least in the area of the free end of the web when the shaft(s) is (are) rotating. In accordance with the present invention, means are provided for exhausting part of the hydraulic medium, said means branching off from an annulus area that is farthest away from the inlet area.

Abstract: A flat conductor made in the form of a tubular conductor is sealed at an end connection using a rigid core of convex external surface. The rigid core is slipped into an end part of the tubular flat conductor. A protective sleeve made of a cold-recoverable material seals the conductor in compression between the core and the sleeve.

Abstract: A flat gasket includes a gasket body and at least one eyelet enclosing the gasket body. The gasket body is formed of a pressure-resistant core which is resistant to temperatures of at least 150° C. and a covering that completely covers flat outer sides of the core and is made of a gas-tight foil of an organic polymer having a long-term temperature resistance of at least 150° C. The eyelet or eyelets enclose the gasket body with a gas-tight joining. The core is formed of a plastic or elastomer reinforced with fibers and/or fillers, or it is formed of mica or graphite. If mica or graphite are used, the core is preferably formed of layers disposed alternately on top of one another and formed of graphite foils and metal foils or layers of mica and metal foils.

Abstract: A brush seal (9) comprising a plurality of bristles packed together in a bristle layer (10). The bristles (10) extend from a first component (4) towards a facing surface of a second component (2). A movable plate (14) is disposed substantially parallel to and adjacent to the bristle layer (10). The plate (14) is movable relative to the bristle layer (10) in a direction parallel to the bristle layer (10). An edge (22) of the movable plate (14) adjacent to and facing the facing surface of the second component (2) is arranged to air ride on the facing surface of the second component (2). To promote the air riding the edge (22) of the movable plate (14) may be accordingly profiled. Alternatively the edge (14) may comprise an enlarged foot member (24) which defines an enlarged surface (26). Furthermore a recess (30) may be defined in the movable plate (14).

Abstract: A pair of spaced apart radial shaft seals are held together by an interlocking pair of support members. The support members form an inner cavity which is in flow communication with the annulus between the shaft seals and the shaft. The inner cavity is vented to the atmosphere by means of a partial hole formed in the outer diameter portion of the support members. Any fluid that accumulates between the seals in the annulus is permitted to drain out through the inner cavity and the vent hole. The vent hole also prevents the formation of a vacuum in the annulus during operation. A channel between the support members is in flow communication with the annulus.

Abstract: A stationary ferrofluidic seal for sealing a stationary shaft to a rotating hub. A formed magnetic is attached to the rotating hub, bounded by upper and lower members to form a shaped cavity. A stationary ring is attached to the shaft and extends into the cavity, which is filled with a conductive ferrofluid. The cavity has a uniform, concave cross section over at least part of its surface. The end of the stationary ring distal from the shaft is shaped so that in the region containing the fluid, the ring and cavity surface are equidistant from a set of points defining the seals “characteristic contour”.

Abstract: A rotary seal is provided that operates hydrodynamically in response to relative rotation even when subjected to exposure to a high fluid pressure from either side, and provides low breakout and running torque. A dynamic sealing lip having a wavy geometry provides hydrodynamic lubrication in response to relative rotation when little or no differential pressure is acting across the seal. When differential pressure exists, controlled fluid pressure-induced distortion results in a distorted dynamic sealing lip configuration that is suitable for hydrodynamic lubrication, regardless of which direction the differential pressure acts from.

Abstract: A glass door hinge is provided which is self-centering and clamps a glass door between two opposed clamps. The hinge includes a mount, a pair of clamps, a hinge block, a spindle, and a biasing member for engaging the spindle to return the clamps and the door to a centered position. Each of the clamps is preferably provided with a lipped gasket which isolates the door from the metal hinge components. One of the clamps has a pair of set screws for holding the spindle in position relative to the clamps, and a pair of locking screws for inhibiting movement of the set screws. The set screws and locking screws are concealed from view by being received entirely within the clamp.

Abstract: A sealing arrangement is provided including a first housing and a second housing and a sealing member positioned therebetween. In various embodiments, one housing includes a channel shaped portion and the other housing includes a tongue shaped portion movable in an axial direction into the channel shaped portion to compress the sealing member therebetween in a transverse direction relative to the axial direction. In further embodiments, both housings include a channel shaped portion and the sealing member extends into each channel shaped portion and is compressed within each channel shaped portion in a transverse direction.

Abstract: An obturator (1) for an opening (10) has a collar (2) comprising a peripheral lip (3) adapted to come into abutment on a face (10a) of the opening (10), and several teeth (6) mounted pivotally on the collar (2) and adapted to come into abutment on an opposite face of the opening (10) in a locked position of the obturator (1). The teeth (6) are also fixed to a flange (12) mounted pivotally on a pusher (8), the pusher (8) being adapted to pivotally move the flanges (12) between an unlocked position and a locked position of the obturator (1). The obturator is used notably for sealing closing an opening in a motor vehicle body.

Abstract: A double ring seal of unitary construction is made from a resilient deformable material. The ring seal comprises two coplanar sealing rings for use in sealing between two substantially planar surfaces, and means interconnecting the rings, such that an interspace volume is formed between the rings when the seal is in use.

Abstract: A net-shape molded elastomeric gasket for dissipating heat and providing electro-magnetic interference (EMI) shielding for an electronic device is formed by loading a base elastomeric matrix material with thermally conductive filler and EMI reflective metallic filler and injecting the mixture into a mold cavity. The gasket of the present invention provides superior sealing between the case sections of an electronic device by shielding the device from EMI infiltration along the seam between the sections. In addition, the gasket of the present invention is in thermal communication with the case sections of the electronic device to provide thermal transfer and dissipation between the separate parts of the device.

Abstract: Described herein is a portable display system including a collapsible frame comprised of a plurality of box units defined by spaced hubs with pivotable members extending therebetween. In one aspect of the invention, a locking feature is provided between the members and the hub. In another aspect of the invention, a hook-type mounting between the members and the hub is described. More than one of these display systems can be mounted one to another with a clip that is provided between adjacent outward-most hubs of two different systems. A cage also is described, which permits assembly and disassembly of the collapsible unit into two separate packageable parts. A button also is disclosed which permits two parts of the display to be mounted removably to another.

Abstract: A seal for a radially expansible conduit connection is disclosed. The seal includes a first sealing surface disposed proximal to an end of a male portion of the connection and a corresponding second sealing surface disposed proximal to an end of a female portion of the connection. The first and said second sealing surfaces are substantially opposite each other upon connection of the male and female portions. The seal includes a first clearance surface proximal to the first sealing surface and a second clearance surface proximal to the second sealing surface. The first and second clearance surfaces are substantially opposite each other upon connection of the male and female portions.

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 seal assembly including a low flow cloth ring seal having a cloth assemblage is provided for sealing a tubular cavity disposed between a tubular member and a mating body. The density of the cloth assemblage may be set according to a desired flow rate of gas through the cloth ring seal. In applications where more stiffness and strength is desired, the cloth ring seal may include a shim assemblage surrounded by the cloth assemblage.

Abstract: In an attachment structure of a gasket for a refrigerant-seal, both first and second connection members are disposed to define a seal space by first and second opposite surfaces and first and second wall surfaces, and the gasket having a beam portion is disposed in the seal space so that one end surface of the gasket is held on the first wall surface of the first connection member and the other end surface of the gasket is separated from the second wall surface of the second connection member by a predetermined clearance, before both the first and second connection members are fastened. After both the first and second connection members are fastened, the gasket extends, and the other end surface of the gasket press-contacts the second wall surface.

Abstract: A lip type seal (3A) has an annular casing (31), a plurality of seal lips (32, 34) and a rear surface support ring (35) arranged at the rear side. The casing (31) is installed to an inner circumferential surface of a seal installation part (1a) of a shaft hole housing (1) of an equipment through a main gasket (36) made of rubber state elastic material. An inner circumferential part of the seal lips (32, 34) is closely contacted with an outer circumferential surface of a rotary shaft (2). A sub-gasket (41) made of a material having a CO2 transmission coefficient being smaller than that of rubber material is interposed between the rear surface support ring (35) and the shaft hole housing (1).

Abstract: Magnetic fluid seals containing housings, magnets, pole pieces, gaps, magnetic fluids, shafts and bearings of standard type are modified to permit operation at two levels of magnetic intensity in the gaps. During exposure to the operating pressure difference that a seal is designed to withhold, the magnetic field intensity in the gaps is maintained at a relatively low intensity. Subsequently, the magnetic field intensity in the gaps is increased to yield burst-free operation. Various embodiments for adjusting the magnetic field intensity are disclosed. These include: magnetic fluid seal with a variable magnet to pole-block spacing; seal with hollow-shaft flux intensifier; seal with surrounding flux diverter; and seal with an internal magnetic coil that furnishes opposing magnetomotive force.

Abstract: A unitary boundary gasket is adapted for sealing between flanged portions of two axially mated surfaces of rigid metallic members, such as between the bottom of an engine block and an associated engine oil pan. In one preferred form, the gasket has a rectilinearly shaped annular body, and is formed of a one-piece radially outermost rigid metallic carrier having a first axial thickness, and adhesively bonded to a one-piece radially innermost elastomeric sealing body. The sealing body is bonded to the metallic carrier at the radially innermost edge of the carrier. The sealing body includes a plurality of spaced elastomeric apertures adapted for accommodating passage of bolt members for fastening said flanged portions together about the gasket body. The apertures are designed for sealing against leakage of fluids between said apertures and said bolt members. For this purpose, each aperture includes at least two axially spaced integral sealing lips.