Abstract: A connector for an off-shore oil installation is provided. The connector is configured for connecting first and second tubular elements having a common axis along which a releasable connection is made by a ball-type connector that is axially engageable and that presents an inner cylindrical sleeve and an outer cylindrical sleeve. The first tubular element constituting an inner connection element terminating at a downstream end and being received in a complementary region of the outer second tubular element. The connector includes a laminated ball joint having a center of rotation situated on the common axis and secured to one of the tubular elements.

Abstract: A compensator for connecting a first pipe connection piece to a second pipe connection piece that is arranged at a distance from the first pipe connection piece and that can be moved toward the first pipe connection piece includes an inlet pipe, which is fastened coaxially to the outlet opening of the first pipe connection piece, an outlet pipe, which is arranged approximately coaxially to the inlet pipe, is arranged at a distance from the inlet pipe and is fastened coaxially to the inlet opening of the second pipe connection piece, and a woven-fabric compensator, which connects the inlet pipe and the outlet pipe to each other, wherein gas laden with dust can flow through all aforementioned pipes, said gas being directed from the first pipe connection piece to the second pipe connection piece, and wherein a hollow cylindrical inlet guide plate is fastened to the inlet pipe near the first pipe connection piece, the radius of said inlet guide plate corresponding approximately to the inner radius of the first pi

Abstract: A fluid connection device (1), comprising a tubular shaft (2), the interior of which is divided by a partition (8) into two partial spaces (6,9) separated from each other. A respective side opening (11,12) opens into each of the two partial spaces. The side openings are covered by an elastomeric sleeve (3) so that the side openings are sealed shut as long as no other external forces act on the sleeve. By means of a union nut (4), which is intended to connect the tubular shaft to a container and is screwed onto the fitting thereof, the sleeve is compressed in the axial direction and produces an annular gap that extends across the side openings, by means of which the side openings are flow-connected from then on.

Abstract: A flexible joint with bellows for coupling two tubular elements together for passing fluid in a flow space and presenting a main axis that is constituted by the axis common to the tubular elements when they are in their aligned position, and including at least one flexible joint element functionally connected to a first tubular element and to a casing, together with a coupling bellows coupling together the two tubular elements, the coupling bellows, the flexible joint element, and the casing defining walls of a fluid-filled cavity. The joint including a flexible pressure-compensation device spaced apart from the bellows and having a first face forming at least part of a wall of said cavity and a second face that is in communication with the flow space.

Abstract: Cleaning equipment for cleaning a moving surface particularly in a paper machine includes a washing head with a chamber in it opening onto the surface to be cleaned and nozzle elements arranged inside the chamber. The cleaning equipment also includes vacuum means and removal means. The vacuum means are arranged in the washing head. In addition, the washing head is arranged to be movable relative to the removal means that are fitted in a fixed manner.

Abstract: An attachment system (601) for maintaining a passageway (603) of a tube (605) in axial alignment with a passageway (607) through a housing (609) includes a spring (611) having an exterior edge (613) and an interior area (615) passing the tube (605). The housing (609) has an exterior mating surface (404) around the passageway (607). A mating end (402) of the tube (605) abuts against the mating surface (404). A spring retainer (617) apart from mating surface (404) restrains the movement of the spring (611) away from the mating surface (404). A tubular coupler (619) in proximity to the mating end (402) restricts the movement of the mating end (402) toward the interior area (615) of the spring (605).

Abstract: An apparatus and method for coupling a device to a semiconductor processing chamber is provided. The apparatus generally comprises a first ring disposed proximate a second ring. An energy dissipating media is disposed between the first and second rings. Upon the application of a torsional force in excess of a predetermined amount, the first ring rotates relative to the second ring. The energy dissipating media absorbs or dissipates some or all the energy applied to the first and second rings.

Abstract: A flexible penetration attachment for BWR wet-well strainers is provided that causes a suction pipe to communicate with liquid in the wet-well through an aperture in a wet-well wall. The penetration includes a boot for defining an outer circumference of the aperture. A suction pipe having an outer surface extends through the aperture such that an annular space is defined between the aperture outer circumference and the suction pipe outer surface. A resilient seal having a generally U-shaped cross section with first and second ends is placed within the annular space. The first end is fixedly secured to the outer surface of the suction pipe and the second end is fixedly secured to the aperture outer circumference such that the suction pipe may move in response to a force applied to the suction pipe.

Abstract: A metal diaphragm is provided which acts as a spring while defining a flow path. A restraint limits upward movement of the diaphragm during transient motion. Downward movement is resisted by a Belleville spring.

Abstract: An expansible bellows, includes a pair of end plates attached together and sealed around their peripheries such that their inner faces confront each other to define between them an expansible chamber for containing a fluid. One end plate is formed with an inlet port to the chamber; and the other end plate is formed with an outlet port from the chamber. The inner and outer faces of both end plates are formed with recesses which permit the center portions of the end plates to flex outwardly, and thereby to expand the chamber, when pressurized fluid is inletted into the chamber via the inlet port and blocked from flowing out of the chamber through the outlet port.Also described is a pulsator including such a bellows serving as the expansible chamber of the pulsator.

Abstract: An expansion joint is disclosed for connection between fluid flow conduits for permitting the expansion and contraction of the conduits while sealing same. The joint includes telescoping cylindrical members each connectable to a conduit and having a rolling seal or membrane connected therebetween to prevent leakage of fluid out of the joint. One of the members includes an inwardly turned, annular shoulder formed so as to closely surround the other member during full relative movement between the members to prevent the seal from coming in contact with foreign matter. The expansion joint is provided with a plurality of guide rods which are arranged circumferentially around the pipe joint and serve to lock the rolling seal in operative position with one member and to guide the movement of the other member during movement of members relative to each other.

Abstract: A molded joint boot obtained by using a highly hard and highly elastic thermoplastic polyester elastomer as the molding material. The molded boot is formed into the shape of a conical bellows having a major-diameter portion connected to a minor-diameter portion by a tapered wave-like portion. Along the direction from the major-diameter portion to the minor-diameter portion, the ratio of the outside diameter of the crest portion on the minor-diameter side of a given wave to the outside diameter of the immediately-preceding trough portion of the same wave is confined within the range of about 1.08 to about 1.40. The subject molded boot is processed by injection molding, and the thermoplastic polyester elastomer employed as the molding material is above about 70 kg/cm.sup.2 in tensile yield strength, above about 30% in tensile yield elongation, and within the range of about 430 kg/cm.sup.2 to about 1700 kg/cm.sup.2 in tensile elasticity modulus.

Abstract: To couple two pipes for hot fluids together, a sealing membrane of temperature and corrosion-resistant material is located transversely within a ring-shaped chamber or space surrounding the end portions of the pipes, the sealing membrane being welded to the adjacent wall portions defining the ring chamber, and the at least one and preferably two sealing and support cushions or pillows being placed adjacent the sealing membrane, to permit limited angular and axial movement of the pipe ends with respect to each other while, effectively, preventing substantial torsional excursion. The membrane may be corrugated or stepped, located transversely to the pipes or at an inclination with respect thereto. Two membranes may be used, inclined towards each other (FIG. 3) and multi-pipe units can be coupled by a single membrane (FIGS. 8, 9).

Abstract: In a flexible joint having a through-bore for the flow of fluid and comprising a pair of annular rigid members relatively rotatable about the longitudinal axis of the flexible joint, an annular elastomeric bearing is interposed between the relatively rotatable annular rigid members to flexibly interconnect the members and transmit load therebetween, and a normally sealed annular chamber is provided between the relatively rotatable annular rigid members and arranged to extend over an otherwise exposed surface of the bearing. Preferably the annular chamber is defined in part by a flexible diaphragm; the flexible diaphragm or the manner in which it is located permits relative rotational movement of the rigid members.

Abstract: A seal assembly is provided for preventing excessive movement between two housings. Whenever two rotating shafts are coupled together, one shaft driving the other, there is generally some movement of the shafts and their respective machines relative to each other. It is preferable to cover the rotating shafts for safety and to provide lubrication. A flexible membrane is attached between a coupling guard adapter which is rigidly mounted to the housing of one piece of equipment, and a back-up ring. This assembly is then attached to a coupling guard which is itself rigidly mounted to a housing on the other piece of equipment. Finally, a membrane guard is attached to the coupling guard.

Abstract: A seal assembly for an annular joint, comprising an outer ring, an inner g and an intervening membrane. The entire assembly is screwed into place as a one-step operation. Threads on the rings have the same pitch to preclude or minimize excessive axial advancement of one ring relative to the other ring during the seal installation operation.

Abstract: Method and means of rapidly repairing damaged portions of conduits and pipes which are difficult or impossible to weld, whereby in the vicinity of the pipes to be maintained prepared replacement pipe sections are stored each together with two associated quick-action unions which comprise an annular coupling body bridging the pipe ends to be joined and having at least one threaded portion and a sealing insert which may be compressed by means of plugs adapted to be screwed into the threaded portion, and after cutting out a portion of the pipe which includes the damaged area and the length of which corresponds substantially to the length of the prepared replacement pipe section the latter is inserted into the pipe line and sealed by tightening and quick-action unions.