Abstract: A single piece gasket is provided wherein the single piece gasket includes a gasket member first portion and a gasket member second portion integral to the gasket member first portion. The gasket member first and second portions are in a common plane when the gasket member is in a relaxed state, and the first and second portions are in intersecting planes in a flexed state. The gasket member first portion is operatively configured to seal at least two compartments. The first and gasket member second portions have substantially circular cross-sections.

Abstract: A gland seal designed according to the joint's factors m and y and the seal-designing rule refined from ASME Code to result in its minimum necessary seating stress y at no fluid pressure being so small to be ignorable that its sealing maintenance factor or disturbance resistance index m, equal to the joint's sealing actuation force divided by the joint's unseating actuation force, can be used to indicate its sealing safety at a fluid pressure: when m=1, its sealing actuation force equals its unseating actuation force or equals its “seating area×fluid pressure” and so it can be kept leak-free under no upset disturbance condition and may leak at an upset moment, and when m>1, it can be resistant to an upset disturbance and be the greater, the more resistant. The factor m for a self-energizing tight joint is equal to its fluid's sealing actuation area divided by its fluid's unseating actuation area.

Abstract: A seal for an intermediate platform provided between two adjacent blades in the rotor of a turbine engine, the seal having an elongate shape with an upstream end and a downstream end, and including transversally, in the direction of the width thereof, a contact portion, an attachment portion, and a flexible portion between the attachment portion and the contact portion. The cross section of the seal has an open-ended shape between the two ends thereof.

Abstract: An integral seal and sealant package includes a prefabricated seal element having multiple surfaces; a high-temperature sealant composition engaged with one or more of the multiple surfaces; and a backer material enclosing the prefabricated seal element and the high-temperature sealant composition. The backer material has composition permitting the backer material to be installed with the seal element and the sealant composition between adjacent components to be sealed.

Abstract: The present invention relates to compositions and methods for creating insulating seals for use in a variety of applications, and to seals created by such compositions and methods. In particular, the present invention provides novel compositions and methods for creating insulating edge seals that provide multiple contact surfaces. The present invention further provides seals that facilitate attachment of flexible covering materials (such as fabrics, plastics, metals, etc.) to hard surfaces (such as plastics, metals, woods, etc.). The present invention is particularly useful for creating insulating edge seals that provide a means of attachment for removable covers for vehicles (such as tops for automobiles, watercraft, and aircraft), structures, and objects.

Abstract: A seal is disclosed for retrofitting to an existing railroad hopper car having opposing sidewalls and at least one trough extending between the opposing sidewalls. The seal includes a first member configured to mate against a surface of a trough adjacent a sidewall, the first member including a first edge having angled sections corresponding to angled sections of where the sidewall meets the trough, and a second member integral with the first member and extending substantially upright from the first edge of the first member, the second member configured to mate against a surface of the sidewall adjacent the trough, wherein the second member is angled relative to the first member at each of the angled sections corresponding to angled sections of the sidewall adjacent the trough.

Abstract: Disclosed is a two-material composite gasket, preferably a two-material composite annular gasket, for sealing a gap between two opposing surfaces, one of the surfaces having a concave gap portion, which is to be sealed by the gasket, the gasket having an oblong cross-sectional shape and having projections on the top end and bottom end thereof, the gasket including an upper low-hardness elastomer molded part formed of vulcanized rubber having a Shore A hardness of 5 to 35, a lower high-hardness elastomer molded part formed of vulcanized rubber having a Shore A hardness of 45 to 80, and a parting line bonding the low-hardness elastomer molded part and the high-hardness elastomer molded part, the parting line being positioned so that the height of the low-hardness elastomer molded part is 5 to 40% of the height of the entire gasket.

Abstract: Gas turbine engine seals and engines incorporating such seals are provided. In this regard, a representative seal includes: an annular seal body having an inner diameter and an outer diameter, the seal body extending along an axis of symmetry between a first end and a second end; the seal body being formed of a strip of material having first and second opposing edges, the strip of material being deformed to exhibit a first sealing surface at the first end, a second sealing surface at the second end, and a third sealing surface along the inner diameter, the first edge being located adjacent to the third sealing surface, the second edge being located adjacent to the second sealing surface; the first edge being spaced from the second edge to define an annular opening, the annular opening providing access to an annular cavity of the seal body.

Abstract: A ball valve seat arrangement is provided that permits relief of cavity pressure. The arrangement includes a valve body for receiving a resilient annular seat. First passages in the seat provide communication between the valve cavity, and a space formed between the seat and the valve body. When the cavity pressure reaches a certain level, a sealing point between the seat and the valve body is lost. Communication is thereby provided between the space and the valve passage to achieve cavity pressure relief.

Abstract: Edging seal profile for kitchen worktops and the like, which is equipped with a top layer. The edging seal profile comprises a hollow chamber profile, which is enclosed by one front wall leg and two substantially parallel limiting legs deployed at a distance from each other, and which can be filled with a plate element or with an insulation mass, wherein the limiting legs are connected with the front wall leg projecting at right angle, and its upper limiting leg forms on its upper side a supporting surface for the top layer, which is connected with the front wall leg.

Abstract: An elongated elastomeric gasket (10) seals a pair of opposing flanges (12, 14) against the passage of liquid without compressing the flanges (12, 14) together. A reinforcing spring (32) is embedded within the elastomeric gasket (10) and is shaped so as to react when deflected by the operation of installing the gasket (10) into an operative position between the flanges (12, 14). A strategically located U-shaped bend (34) formed in the reinforcing spring (32) causes, in a preferred embodiment, contact pressure to be increased between opposed sealing beads at the other end of the gasket. More specifically, lateral contact pressure between a first pair of sealing beads (24) and their associated contact faces (38) is increased as a direct result of the reinforcing spring (32) being displaced during the assembly process.

Abstract: In order to make it possible to previously specify which of two members the rubber-like elastic part pinched between the two members attaches to, and to improve workability of rework or the like, an attachment member specifying structure is provided in the rubber-like elastic part so that the rubber-like elastic part is surely detached from one member and attached to the other member at a time of moving the two members apart from each other, preferably by forming a contact area with one member in the rubber-like elastic part smaller than a contact area with the other member, by forming a surface treated portion by matte finishing or the like in a contact area with one member in the rubber-like elastic part, or by forming a projection-like spring portion elastically pressed to one member so as to achieve a spring effect.

Abstract: A sealing ring used for reciprocating motion and having low friction characteristics. The sealing ring is held at one of two members that move relative to each other and slidably in intimate contact with the other. The sealing ring has an end sliding part having an arcuate cross section and slidably in intimate contact with the other and also has a recessed surface formed in at least either a rear face or both side faces in an axial direction. The sealing ring satisfies the relationships of A/2<R<13A2 and 0.5A<C<A, where R is the radius of curvature of the end sliding part, A is the axial width of the sealing ring, and C is the thickness of the sealing ring between the deepest parts of the recessed surfaces.

Abstract: An arrangement for sealing an opening formed in a wall for receiving a member. The arrangement comprises a sealing member with a passage, and the sealing member is moveably mounted on the wall adjacent to the opening such that the sealing member passage is substantially co-axial with the opening in the wall. Biasing means for biasing the sealing member towards the wall are also provided.

Abstract: A seal is provided for sealing a hollow shaft, where the hollow shaft has an inner surface that may be uneven due to shot peening. The seal includes an axially extending ring section having a first end, a second end, an inner surface, and a disk section disposed substantially perpendicular to the ring section inner surface between the ring section first and second ends. The seal conforms to the shaft inner surface to stop oil leakage.

Abstract: A gasket for a railroad car manway nozzle and cover includes an inner leg portion and an outer leg portion joined by a generally planar annular body portion defining an upper annular cover sealing surface and a lower annular nozzle body sealing surface. Concentric annular chevrons are formed on the upper and lower annular sealing surfaces. In one form, the chevrons have a uniform height relative to the upper and lower sealing surfaces. In a modified form, the height of the chevrons varies relative to the surfaces from which they extend. The height of the chevrons is a minimum where the gasket is radially aligned with cover clamping bolts and a maximum at radial locations midway between clamping bolts. A tab depending from the outer leg portion provides visual verification of the presence of the gasket.

Abstract: A spring seal for sealing in high temperature applications includes a jacket and a spring member disposed within the jacket. The spring member is constructed to control a sealing load or spring rate of the spring seal relative to opposing flanges while the jacket is constructed to provide a sealing surface relative to the opposing flanges. The spring member is manufactured from a cast blade alloy, thereby allowing the spring member to maintain its spring back characteristics at relatively high temperatures of about 1300° F. and greater. Accordingly, the spring member minimizes the formation of a leak path between the spring seal and the opposing flanges. In one embodiment, the spring member is manufactured with a substantially U-shaped cross-section. With such a configuration, the spring seal provides substantially balanced, opposing forces on the jacket to minimize the formation of gaps between the spring seal and the flanges.

Abstract: A swellable material seal includes a quantity of swellable material disposed in a geometric configuration; and a plurality of openings in the material to enhance wettability thereof by a swelling fluid.

Abstract: Herein is described a device and a method for providing an emergency supply of a medicine including providing a piece of jewelry able to hold a medicine, the piece of jewelry comprising a pendent having an attachment ring and a sealable container, the sealable container having a chamber with a cover attached to the chamber by a hinge; and a clasp whereby the cover can be sealed closed, placing a supply of medicine within the sealable container and sealing the cover closed, carrying the piece of jewelry with a supply of medicine until an emergency occurs, and unsealing the sealable container and removing the medicine, thereby providing an emergency supply of medicine.

Abstract: A gasket to securely contact a box type body when both a body and a cover are downsized and thinned. Fluid leakage is prevented through a seal by lessening repulsion of the seal at the time of sealing clearance between. A clearance between the box type body and the cover is made such that a main body is adhered to a bottom surface of the cover having a peripheral wall. A step face is formed by the main body and a lip portion formed at the tip side of the main body. A contact surface is formed by a side wall of the main body and a peripheral wall. The step surface is positioned outside with respect to the lip portion.

Abstract: A metal ring gasket provides a high-pressure temperature tolerant metal-to-metal seal between subcomponents of a threaded union. The metal ring gasket is received in an annular cavity formed between mating surfaces of the subcomponents of the threaded union. The metal ring gasket is capable of maintaining a fluid seal even at very high temperatures resulting from direct exposure to fire. At high fluid pressures the metal ring gasket is energized because hoop stress induced by the fluid pressure forces the metal ring gasket into tighter contact with the subcomponents of the threaded union.

Abstract: A seal (40) for sealing an interface between a container and a lid of a process chamber. The seal (40) comprises a metallic or polymeric sealing element (50) and an elastomeric sealing element (60) that are arranged to seal the interface in series, with the metallic or polymeric sealing element (50) being situated to encounter processing activity upstream of the elastomeric sealing element (60).

Abstract: A seal is inserted into a space to be sealed. First and second end portions of the seal are engaged with first and second end surfaces of the space. The seal is compressed between the first and second end surfaces. The compression strains the seal. The strain includes the rotation of a cross-section of the seal so as to bias the seal into engagement with a surface forming one of an inboard surface and an outboard surface of the space.

Abstract: A seal is provided that restricts movement of adjacent parts when in a high pressure environment while allowing relative movement of adjacent parts when in non-high pressure environment.

Abstract: The invention relates to a guard for the upper part of a door (2) of an aircraft, consisting of: a composite comprising a composite and/or stainless steel strip (14) which forms the core of the guard (1) and which renders same flexible and resistant, a silicon which is optionally reinforced with fibres and a polyester.

Abstract: Disclosed herein is an electrical connector sealing member. The electrical connector sealing member includes an outer surface and an inner channel. A portion of the outer surface includes a stepped outer diameter. The sealing member is adapted to be received by an electrical connector at the outer surface. A portion of the inner channel includes a stepped inner diameter. The sealing member is adapted to receive an electrical conductor at the inner channel. The stepped inner diameter is offset from the stepped outer diameter.

Abstract: An apparatus for treating the surface of an object to be treated comprising introducing a surface treatment fluid into a reaction vessel (4) capable of receiving an object, introducing the surface treatment fluid into a separation vessel (14) after the object is subjected to surface treatment, and circulating the surface treatment fluid, from which a contaminant has already been removed, to the reaction vessel (4). At the time of treatment on the surface of the object, a circulation passage for the surface treatment fluid including the reaction vessel (4) is communicated and the surface treatment fluid is constantly circulated through the circulation passage.

Abstract: The present invention provides a sealing ring having at least eight sealing edges. Sealing rings, such as O-ring seals, are generally known. These universal sealing rings can be used for statically or dynamically sealing machine elements. They have the advantage of being suited for a wide variety of possible applications, and of being simple and cost-effective to manufacture.

Abstract: A ring seal includes a sealing ring including an asymmetric body portion having axially-opposed and radially-offset seal beads. The ring seal may also include a reinforcement ring carried at least partially in the sealing ring to distribute load across the seal beads. The ring seal may further include a skirt depending generally axially from the body portion and defining an inner diameter of the sealing ring and preferably having frusto-conical cross-sectional shape.

Abstract: A method and apparatus facilitates coupling a pressure vessel first mating surface to a second mating surface. The method comprises inserting a seal assembly into a groove defined in the first mating surfaces such that a portion of the seal assembly extends outwardly from the first mating surface, positioning the second mating surface in close proximity to the first mating surface such that the portion of the seal assembly extending outwardly from the first mating surface is received within a groove defined in the second mating surface, and such that the seal assembly facilitates reducing fluid leakage between the first and second mating surfaces.

Abstract: Active seal assemblies employing active materials that can be controlled and remotely changed to alter the seal effectiveness, wherein the active seal assemblies actively change modulus properties such as stiffness, shape orientation, and the like. In this manner, in seal applications such as a vehicle door application, door opening and closing efforts can be minimized yet seal effectiveness can be maximized.

Abstract: A closure assembly with a shape memory polymer seal is provided for use with a vehicle. The closure assembly includes a frame member configured for attachment to the vehicle body to selectively transition from a closed position to an open position. The seal structure includes a base portion elongated along and attached to a peripheral edge of the frame member or the vehicle body, and a flexible contact portion extending integrally from the base portion and configured for sealing communication with an opposing surface. A thermally-activated smart material (TASM), namely a shape memory polymer member, is disposed inside a cavity within the contact portion. A thermoelectric device is in thermal communication with the TASM, and is characterized by a thermal differential when current flows therethrough. The TASM is activated in response to the thermal differential of the thermoelectric device, thereby altering at least one physical property of the TASM.

Abstract: An elongated elastomeric gasket (10) seals a pair of opposing flanges (12, 14) against the passage of liquid without compressing the flanges (12, 14) together. A reinforcing spring (32) is embedded within the elastomeric gasket (10) and is shaped so as to react when deflected by the operation of installing the gasket (10) into an operative position between the flanges (12, 14). A strategically located U-shaped bend (34) formed in the reinforcing spring (32) causes, in a preferred embodiment, contact pressure to be increased between opposed sealing beads at the other end of the gasket. More specifically, lateral contact pressure between a first pair of sealing beads (24) and their associated contact faces (38) is increased as a direct result of the reinforcing spring (32) being displaced during the assembly process.

Abstract: A gasket having a cross sectional shape longer than it is wide and is prevented from falling over and buckling. The gasket is installed in an installation groove formed in either of two opposite surfaces and having a cross sectional shape that is longer in the depth direction of the groove than it is wide. The gasket has a meandering section meandering in the width direction of the installation groove and also has a rib provided projecting from the inner periphery and/or the outer periphery of the meandering section.

Abstract: A high-pressure pump is provided with a high-pressure delivery line, a low- pressure supply line, a pumping element defined by a piston and cylinder, a cylinder head, and a gasket. The gasket is essentially flat and is provided with a sheet extending in a first plane and that has a first hole defining part of the low-pressure supply line, a second hole into which the cylinder head can be inserted, and a third hole defining part of the high-pressure delivery line. A coating of elastic material is provided to extend only around the first and second holes.

Abstract: A gasket is to be disposed in a compressed state between a groove bottom surface defining a gasket groove formed in a first member and a seat surface of a second member so as to make a hermetical sealing between the groove bottom surface and the seal surface. The gasket includes a first seal section formed at an end part of the gasket in a compression direction. The first seal section is ridge-shaped so as to become slender in a direction toward a tip portion of the first seal section. The first seal section has first and second side surfaces which are opposite to each other with respect to a first plane passing through the tip portion of the first seal section. The first side surface overhangs outwardly larger than the second side surface.

Abstract: The present invention is directed to a resilient, annular, seal. In one embodiment, the annular axial seal comprises a first linear section consisting of a first end and a second end, a first side in a first plane and an opposite second side in a second plane. The second plane is substantially parallel to the first plane, wherein the first linear section does not have any inflection points formed therein. The annular axial seal further comprises a first portion contiguous with the first end of the first linear section. The first portion is curved with respect to the first linear section and in accordance with a first predetermined radius such that the first portion breaks the first plane. The first portion extends to a first distal end. The annular axial seal further comprises a second portion contiguous with the second end of the first linear section.

Abstract: A screw loosening prevention structure and a gas-pressure device are provided. The structure includes a first member that is formed with a container space filled with gas, and includes a first threaded portion, a second member that includes a second threaded portion, wherein the second member is threadedly coupled with the first member by threadedly engaging the second threaded portion with the first threaded portion, and receives a pressure from the gas in the container space of the first member, and a spring member provided between the first and second members in a deformed state in which the displacement of the spring member is greater than a relative displacement of the first and second members due to a loosening factor including the gas pressure that is received by this second member.

Abstract: An annular, axial seal having a linear section having opposite ends, a first side in a first plane and an opposite second side in a second plane wherein the second plane is parallel to the first plane and a curled section contiguous with one of the ends of the linear section. The curled section curls in a first direction to a distal end. The curled section curls in the first direction in accordance with a predetermined radius and predetermined distance such that the distal end of the curled section is located directly across from the first side of the linear section. The linear section and the curled section provide a generally “J” shaped cross-section. The annular, axial seal also has a tip portion contiguous with the opposite end of the linear section such that the linear section is between the tip portion and the curled section. The tip portion is slightly curved with respect to the linear section such that the tip portion breaks the first plane.

Abstract: A seal structure in which a sealing member 510 fitted in the seal holding part 120 is elastically deformed to hermetically seal a flow passage joining portion. The seal holding part 120 opening on a flow passage side and including a first retaining surface 121, a second retaining surface 122, and a circumferential surface 123. The sealing member 510 includes a first surface 511 in contact with the first retaining surface 121, a second surface 512 in contact with the retaining surface 122, and an inner surface 513 located inside the seal holding part 510 and tapered to have a diameter becoming smaller from the first surface 511 side to the second surface 512 side. An engagement portion 515 engaged in the seal holding part 120 is formed protruding from an outer surface 514 located on the circumferential surface 123 side and on the first surface 511 side.

Abstract: A gasket in an integrated double-layered structure comprising an outer layer and an inner layer enclosed by the outer layer, in which the outer layer is a low-hardness rubber layer having a JIS A hardness of 40-70, and the inner layer is a high-hardness rubber layer having a JIS A hardness of 80-100, where a ratio h/h0 of height h of the inner layer to height h0 of the outer layer is preferably 0.3-0.8, and ratio d/d0 of height d of the inner layer to width d0 of the outer layer is preferably 0.5-0.8 in the longitudal cross-section as view from the width direction of the gasket, has a low reaction force, and distinguished sealability and insertibility, and used as inserted between two members, one of which has a groove for insertion.

Abstract: A single-ply sheet metal seal ring with a convoluted, V/E-shaped cross-section having planar-circumferential flexibility is shown to be more capable of conforming to the sealing face contours of warped, weld-deformed flanges than thin layer, multiple-ply seals developed to replace earlier E-shaped seals for this purpose. The basis of the improved flexibility of the new seal lies mainly in the discovery of geometric relationships that permit a reduction in the thickness of the sheet material employed in the construction of the seal while maintaining its pressure containing capabilities.

Abstract: Primary objective of the present invention is to effect a seal against a variable clearance formed between assembly components which admit flows of high temperature fluids or are subjected to vibrations. Another objective is to reduce manufacture cost thereof.

Abstract: A sealing grommet for a fluid filter is provided. The sealing grommet includes a central portion defining an aperture; a flange portion integrally formed with the central portion, the flange portion extending outwardly from an outer periphery of the central portion, wherein a first portion of the central portion extends away from the flange portion in a first direction and a second portion of the central portion extends away from the flange portion in a second direction, the first direction being opposite to the second direction; and a first protrusion disposed on the first portion, the first protrusion being disposed on an inner surface of the central portion defining the aperture.

Abstract: A seal for use in sealing on a wellhead assembly, where the seal is pressure energized and comprises an annular element having an inverted portion on its outer portion along its length. The seal may further include upper and lower ring members sandwiching the element between the ring members. The seal is formable by adjoining the open surfaces of two “W” shaped annular seals along their edges thereby forming an element responsive to pressure.

Abstract: A seal assembly capable of low temperature service is disclosed. It features upper and lower metallic backup rings that are specially shaped to act as a spring to keep the sidewalls of such rings in contact with the inside and outside surfaces to be sealed to prevent extrusion of the seal material even in low temperature situations. Inner and outer grooves are provided. O-ring seals, used for the ID of the seal, are manufactured to have a slightly greater diameter than the groove into which they will be installed. The greater length provides stored energy to promote sealing functionality in cold temperature situations. The O-rings used for the OD of the seal are manufactured to have a slightly smaller diameter than the groove into which they will be installed. The shorter length provides stored energy to promote sealing functionality in cold temperature situations.

Abstract: The invention relates to a high temperature-resistant sealing assembly comprising a sealing segment and a component border which is connected to the sealing segment. A flexible sealing element is provided in order to joining the sealing segment and the component border. The invention is characterized in that the flexible sealing element compensates both thermal expansions and relative movements of the component border and the components resting against the sealing segment. The flexible sealing element and the sealing segment are subject to little wear and have a long service life. The invention further relates to a combustion chamber that is equipped with a high temperature-resistant sealing assembly as well as a gas turbine encompassing such a combustion chamber.

Abstract: In a sealing arrangement, in particular for the connection of a manifold to a cylinder head of an internal combustion engine, a flat support (1, 3) has at least one sealing element in the form of a ring element (17) that forms a mold seal. The support (1, 3) and ring element (17) form a unit that holds the ring element captively on the support (1, 3).

Abstract: The invention comprises an elastic material in order to carry out the joining and sealing between a first (2) and a second (3) element; and which has the aim of avoiding the formation of pinching of the sealing profile when carrying out the assembly and sealing between the first (2) and second (3) elements. For this, the sealing profile (6 and 7) presents a wedge-shaped configuration which projects with respect to the first (2) element, and on the sloping surface of which the second (3) element presses in order to facilitate its deformation and the assembly and sealing of the first (2) and second (3) element, in which position the surface of the wedge shape that projects with respect to the first element (2) presses against the second element (3). The invention is preferably applicable to aeronautical structures, particularly to those structures where both first and second elements form part of the aerodynamic surface.

Abstract: A sealing system has a gasket (25) which in the undeformed state can be placed against a component (1) to be sealed. In the deformed state, the gasket engages the component (1) such that the gasket (25) is captively held on the component (1).