Abstract: An annular space is formed between the opening of a refractory lining in a metallurgical vessel and a shaped element to be joined to the refractory lining in the opening. A joint packing is provided to be packed in the annular space. The joint packing is an annular, deformable, prefabricated packing adapted to the volume or the shape of the annular space. The joint packing is fixable in position in either the opening of the refractory lining or on the shaped piece when the joint arrangement is assembled. Preferably, the joint packing comprises a packing compound provided in a sleeve.

Abstract: A gasket for providing a watertight seal between an opening and a cast member and a conduit extending into said cast member, the gasket being an annular member having an outer circumferential portion of inverted T-shaped cross-section for embedment into the opening of the cast member and a flexible web-like portion extending inwardly from said anchoring portion and terminating in an annular enlarged beaded portion. The length of the web is greater than the distance between the outer diameter of the beaded portion and the inner diameter of the anchoring portion to form a curved configuration. The beaded portion has an inner diameter adapted to cause the beaded portion to undergo at least slight expansion when a conduit is pushed through the central opening defined by the beaded portion whereby the over-center position of the beaded portion may be reversed simply by movement of the pipe.

Abstract: A seal prevents leakage of fluid between the seal and a moving surface. The seal includes a seal body and a conductor. The seal body can undergo wear to a specified depth before the seal requires replacement. The conductor is placed about the moving surface such that wear of the seal body to a specified depth brings the conductor into contact with the moving surface. The conductor may be embedded in the seal body to position the conductor about the moving surface. Wear of the seal body to a specified depth can be checked by checking electrical continuity of the conductor. The existence of electrical continuity between the conductor and the moving surface may indicate that the seal requires replacement. Alternatively, the conductor may be positioned such that the conductor has worn entirely through when the seal body has worn to a specified depth, with a loss of electrical continuity through the conductor indicating that the seal requires replacement.

Abstract: A metallic sealing ring which in radial cross-section is hollow and of sinuous profile having axial end faces sinuously curved so as each to define an axially outward facing deep peripheral groove, the interior of the ring profile being in communication with the exterior thereof.

Abstract: A steel laminate gasket of the invention is installed in an internal combustion engine having at least one hole therein. The gasket comprises a first metal plate, and a second metal plate situated under the first metal plate. The first plate includes a first sealing device around a first hole to be sealed, and an embossed portion between the first sealing device and a base portion of the first plate. The second plate has a second hole larger than the first sealing device, and a second sealing device around the second hole. When the first and second plates are assembled, the second plate does not pile the first sealing device. The gasket is securely sealed by the combination of the first and second sealing devices and the embossed portion.

Abstract: An elastomer seal is described which is useful for forming a sealed, flat mounting surface on a curved housing. The elastomer seal has a flat sealing face opposite a curved sealing surface. An angled transition surface is adjacent to the curved sealing surface forming a bevel. The bevel assists the seal in properly deforming so that a sealing area is formed across the curved housing. This seal provides peripheral and central contact so that the distribution of compressed seal material is well spread over the surface of the sealed area. The elastomer seal is able to effectively seal housings with radii of curvature from 1 to 6.4 times the curvature radius of the curved sealing surface.

Abstract: A metal gasket of the invention is designed to reduce heat transfer between two engine parts. The gasket is formed of at least two plates having holes to be sealed and bolt holes, a sealing device formed around the hole to be sealed, and a space forming device formed on at least one of the plates to separate the plates apart. Spacers are formed around the bolt holes so that bolts can be tightened up to a predetermined thickness. When the gasket is tightened, the sealing device is compressed to seal around the hole, but the two meal plates do not closely abut against each other by means of the space forming device. Accordingly, heat is partly radiated through the gasket, and heat transmission between the engine parts is reduced.

Abstract: A hydrodynamically lubricated squeeze packing type rotary shaft with a cross-sectional geometry suitable for pressurized lubricant retention is provided which, in the preferred embodiment, incorporates a protuberant static sealing interface that, compared to prior art, dramatically improves the exclusionary action of the dynamic sealing interface in low pressure and unpressurized applications by achieving symmetrical deformation of the seal at the static and dynamic sealing interfaces. In abrasive environments, the improved exclusionary action results in a dramatic reduction of seal and shaft wear, compared to prior art, and provides a significant increase in seal life.

Abstract: This invention provides a metallic gasket which assures to impart a sufficient sealing function to an engine having a limited inter-bore space and can make the pressure applied around the bores uniform and keep the roundness of the bores intact. This metallic gasket is constructed from two base plates of an elastic material, beads on one base plate being larger in width than beads on the other plate, and is characterized in that the base plates are fixed together at their flat segments located closer to the center of the bores than to the center of the beads and along the circumference of the bores.

Abstract: A noncontacting face seal has a stationary sealing ring and a rotating sealing ring with opposed radially extending sealing surfaces for restricting a fluid flow from a high pressure fluid side to a low pressure fluid side. The rotating sealing ring is moved out of contact with the stationary sealing ring due to hydrostatic force from the fluid. The noncontacting face seal comprises spiral grooves formed in one of the sealing surfaces and extending from a low pressure fluid side to a high pressure fluid side in a radial direction so as to pump fluid from the low pressure fluid side towards the high pressure fluid side, and a spaced portion formed in one of the sealing surfaces and extending inwardly from one circumference of the sealing surface at the high pressure fluid side so as to introduce fluid in the high pressure fluid side between the sealing surfaces.

Abstract: An improved metal-to-metal seal of a generally U shaped configuration which utilizes an enlarged seal portion on the interior and exterior of the inner and outer seal legs to effect an initial seal. The initial interference of the seal legs is maintained by disposing a solid support ring in the annulus between the seal legs with holes in the support ring to prevent pressure lock and to balance pressure distribution within the seal. The invention is shown in a unidirectional form with a single pair of seal legs extending axially from an annular base and in a bidirectional form with a pair of seal legs extending axially in both directions from an annular base. An alternative form of the invention discloses a support member of U shaped configuration which allows greater flexibility in the seal legs while maintaining initial sealing contact. This support member also has holes to prevent pressure lock and to balance pressure distribution within the seal.

Abstract: A gasket assembly and method of making same from at least two gasket structures provides a sufficiently leak-proof seal without the use of a fluid sealing or caulking medium. The first gasket has a contact area on a major surface which includes an array of peaks and valleys which is periodic in two dimensions. The second gasket has an end surface with a contact area which includes an array of valleys and peaks which is periodic in two dimensions. When the peaks and valleys on the contact area of the major surface of the first gasket are engaged with the valleys and peaks on the end surface of the second gasket, the peaks and valleys allow for shift along the x-axis, y-axis and z-axis, accommodating any misalignment of the gaskets within a predetermined stack-up error and thereby providing proper engagement to yield a substantially leak-proof seal.

Abstract: A fitting particularly suited for use in an ultraclean environment or a very clean room. The fitting consists of tubular members or glands having annular sealing beads which project from concentric radial sidewalls and a gasket. The sealing beads engage the gasket to form a seal and radial sidewalls engage the gasket to prevent overtightening of the fitting components.

Abstract: Rapid-assembly sealing bellows for protecting jointed couplings such as transmissions, guiding and steering joints, in particular so-called cardan or universal joints of motor vehicles, said bellows being essentially a corrugated tubular body (with entry and exit sleeves) from a material of adequate flexibility, comprising at least one jointing closure formed by lateral interlocking of the near divided edges running in the longitudinal direction from entry to exit of said tubular body, each of said edges forming respectively a U-shaped interlock housing and an interlocking tongue for being received in the housing, characterized in that the open end of the interlock housing comprises an upper covering leg which is inclined in the upward direction and a supporting sole forming a lower covering surface which greatly extends beyond the upper surface and which is inclined in the downward direction, and in that the interlocking tongue, which is closely received into the U-shaped housing by the matching interior sur

Abstract: A multiple piece seal and method for reducing the leakage of air through a narrow gap separating a higher pressure section from a lower pressure in a gas turbine engine. The seal is comprised of a first sealing member having a thickness sufficiently small so that the first sealing member will deform into sealing contact across the gap when subjected to a pressure differential, and a second sealing member having a thickness sufficiently large so as to prevent both sealing members from buckling when inserted the gap.

Abstract: A seal arrangement for rotating shafts, in particular a propeller shaft of a ship which is in contact with water containing impurities, is designed to provide a filter portion substantially adjacent the outermost seal to thereby filter dirt particles out of the water and keep the dirt particles out of the vicinity of the seal. Such a filter can be made from a sintered material and can essentially be designed to fit the existing space available along the propeller shaft.

Abstract: An O-ring seal configuration between a motor unit and a reduction gear head of a geared-motor is improved. An, O-ring holder is defined by a flange face of a bracket, which is fit to a frame of the motor unit and a guide groove, which is formed on an outer face 7d of a circular boss. A circular vertical wall of the frame has a specific excess height over the flange face; whereby when the reduction gear head is coupled to the motor unit, the guide groove and the circular vertical wall cooperatively prevents the O-ring from become dislodged and misaligned in the coupling face and from slipping off of the bracket.

Abstract: An improved mechanical seal is provided, wherein an annular inner flange extending from a gland plate having inlet and outlet openings is provided with a series of notches between the inlet and the outlet openings, the notches running in the direction of rotation of the shaft around which the seal is attached. The annular inner flange extends inwardly toward and close to the shaft. A series of axial notches made in the rotary sleeve of the seal, extending beneath the stationary seal assembly further increases pumping efficiency, and may be used to circulate barrier fluid without the notches in the flange. A recess in the flange at the outlet opening may used to further increase circulation efficiency.

Abstract: A bidirectional gasket providing a water-tight seal between an opening in a manhole assembly and a pipe extending into said opening, comprises a T-shaped anchoring portion for embedment in a manhole opening A substantially A-shaped pipe engagement portion is joined to the anchoring portion by a slender connecting web facilitating bending of the gasket. The A-shaped portion has "legs" and recesses which form water pockets preventing water from entering. The durometer of the gasket material enhances the water-tight seal of the legs with increasing water pressure. The pipe engaging portion accommodates a greater outside pipe diameter compared with conventional connectors due to reduced volume, by providing voids within the connector together and a lower durometer of gasket material. The gasket has enhanced ability to accommodate diameter deflection or ovation in rigid and flexible pipe materials.

Abstract: A metal laminate gasket of the invention is designed to be installed on an open deck type engine. The gasket is basically formed of first and second metal plates. A thin metal plate is installed between the metal plates to be situated above a main body or frame outside cylinder walls of the engine. Accordingly, when the gasket is tightened, high surface pressure is formed on the main body outside the water passage to securely seal outside the water passage.