Abstract: A steam generator tube repair assembly employs a stud having a shaft and a head which forms a transverse sealing surface. A driver wedge has a central axial bore for receiving the shaft and a generally frustoconical exterior surface for receiving a sealing sleeve. The sealing sleeve has a circumferentially extending sealing surface and an end surface which is adapted for sealing engagement with the sealing surface of the stud head. A coupling nut is tightened to force the driver wedge to swage the sealing sleeve for radial sealing engagement and also transverse sealing engagement. The driver wedge and or the sealing sleeve are formed of shape memory materials so that at a temperature below a transition temperature the diametral dimensions of the sealing sleeve are reduced and at a temperature above the transition temperature the diametral dimensions of the sealing sleeve are expanded into sealing engagement with the tube.

Abstract: A hydrotherapy system is provided including a hydrotherapy tub with a water circulation pump and motor. Electrical proximity sensor terminals are mounted to the tub on the outside surface, one at a relatively low level for detecting the presence of water in the tub and a second preferably at a higher level for detecting the presence of the user to serve as an "on" and "off" switch which the user can operate by placing his hand in proximity therewith. Neither of the terminals requires physical contact to be actuated. Each is connected to circuit means for establishing the presence of an object in proximity with it and each of the terminals is operatively connected to the pump motor so that the pump motor will operate only when both of the terminals are actuated.

Abstract: The invention relates to a conduit for the transport of liquid and/or gaseous media or suspensions, comprising at least one media pipe and at least one envelope. The media pipe is arranged so as to be axially displaceable inside the envelope or envelopes on sliding parts under formation of an air gap separating the envelope from the media pipe. The sliding parts are held at the joints of the individual elements of the envelope. They preferably extend by a radially outer segment between the elements of the envelope and form a support for the media pipe together with a radially inner segment. A single annular sliding part is preferably inserted in each joint of the elements of the envelope. In the case of an annular sliding part without a segment extending between the elements of the envelope, the part is conveniently pushed outward by self-tensioning due to the elasticity of its shape.

Abstract: The pressure accumulator (10) comprises a cylindrical housing (12) having a bore (14) with a piston received slidably therein. The piston (30) has an H-shaped cross section and includes a reduced diameter portion (34) extending longitudinally along the piston (30), and a sealing device (36, 38) disposed at each end of the reduced diameter portion (34). A cylindrical sleeve (44) is received in the reduced diameter portion (34) such that each end of the sleeve (44) abuts a respective sealing device (36, 38). The housing (12) has an exterior circumferential groove (20) with an O-ring (26) therein, and a radial opening (22) extending between the circumferential groove (20) and bore (14).

Abstract: A device for extending and retracting a pool cover, for covering and uncovering a pool. A mechanism for coupling and uncoupling cover driving and driven sections includes a floppy clutch mechanism including a floppy clutch arm, pivotally mounted and operable so as to rotate, pivot, and drop into and out of engagement responsive to rotational and gravitational forces, so as to provide positive coupling and uncoupling for cover operation. The cover driving section includes a cable reel which includes a pair of adjacent sections, to each of which one end of a cable is connected, with the opposite end of such cable connected to the cover leading edge, for enabling efficient extension of the pool cover. A pair of tracks are mounted directly in the sides of the pool, through which tracks the sides of the pool cover extend, and a pair of sliders are directly connected and secured to the cover leading edge, to provide support and guidance for the cover during extension and retraction thereof.

Abstract: A toilet aid comprises a rear fixing bracket for mounting on a WC pan using the normal seat-attachment bolt holes of the latter. Two identical side support structures of inverted U-shape each provides a side user support arm, a front support leg and a rear support leg. The rear support legs extend through pivot bores in the bracket which provides lateral support for the legs with the side support structures independently pivotable about respective pivot axes.

Abstract: An end cap in the form of a plate which is connected by an attachment part to the side wall at the open end of a tubular member. The plate part is pivotal relative to the attachment part and therefore can be rotated between a closed position overlying and spanning the open end of the tubular member, and an open position exposing the open end of the tubular member.

Abstract: A device for use with an automatic pool cleaner in a swimming pool which consists of a suction head and a suction pipe connecting the suction head to the filter of the swimming pool. The device comprises an attachment member adapted to be attached to the suction pipe of the pool cleaner, a buoyant member and means for connecting the bouyant member to the attachment member.

Abstract: This apparatus is particularly suitable for sanitary fittings. It has a throttling insert (1) made from an elastic material and which bears against an annular shoulder (7). This throttling insert (1) is provided with a central flow opening (2) and is symmetrical to a plane normal to the flowpath. The flow opening (2) is provided with an annular regulating lip (5) on both the inflow and the outflow sides, the inflow side regulating lip increasing or decreasing the entry cross-section of the flow opening (2) as a function of the particular pressure of the water flowing through.

Abstract: A method, system and apparatus having a spa shell or like vessel containing water or like liquid, a water heating element, a heat chamber molded into the seat of said spa, said seat having conduits therein for the passage of water from the heat chamber to the spa shell, said heat chamber having conduits provided therein which are connected to the heater element which heater element would consist of a commercially and generally available home electrical or gas water heater, with said liquid contents of said spa shell being circulated by a pump whereby the water is pumped from said heat chamber to the interior of the spa shell.

Abstract: A shroud apparatus which mounts under a wall-mounted lavatory to enclose the trap of a lavatory is disclosed. The shroud has upper and lower rearward attachment regions which are hidden by the walls of the shroud when the shroud is viewed from the front. The shroud defines a hollow interior portion which is upwardly open to receive the trap. It also includes a shroud fastening element in its upper rearward attachment region and a securing element that cooperates with said shroud fastening element so as to restrict the forward movement of the shroud. A connector is attachable to the bathroom wall and to the lower rearward attachment region of the shroud.

Abstract: In an embodiment shown, the plug comprises a body having a central, threaded bore in which is received the threaded shank of a nosepiece. Jaws are slidably engaged with a ramp surface of the nosepiece for effecting a gripping engagement with the inner surface of a tube to be sealed. The body has an abutment formed thereon against which to receive a compression washer and a plurality or O-ring seals interleaved with other compression washers. The shank of the nosepiece is threadedly movable extensibly from and retractably toward the body by use of a wrench engageable with a hexagonal recess formed in the body-engaging end of the shank. As the nosepiece is retracted, the jaws slide along, and expand upon, the ramp surface. The O-ring seals and compression washers set against the abutment of the body, as noted, and an internally-threaded nut is threadedly engaged with an externally-threaded end of the body which is opposite the nosepiece.

Abstract: This is a device for dispersing a vapor, such as a deodorant or fragrant vapor, into the air when a movable element, such as the actuation arm of a flush toilet, is moved from a usual `at rest` position. A switch responsive to movement of the movable element from its `at rest` position closes a circuit which energizes an electrically actuated means, such as a motor or a solenoid operated lever, which when actuated opens the valve of a container from which a vapor of a deodorant or fragrance is dispersed under pressure. The device is particularly adapted for dispersing a deodorant into the air in a bathroom or lavatory when the toilet therein is flushed.

Abstract: A mechanical connection for connecting together a juxtaposed first and second layer of malleable sheet material includes the use of a third layer of malleable sheet material overlying the first and second layers, with the second layer sandwiched between the first and third layers. The first layer has a first displaced pocket projecting away from the second layer, and the second layer has a second displaced pocket nesting within the first displaced pocket. The third layer has an aperture in registry with both pockets, the aperture resulting from the punching out of a disc or slug which is nested within the second displaced pocket. In a preferred embodiment, a length of duct with at least one flat wall has an intermediate lateral stiffener which includes a base leg defined by two juxtaposed layers of sheet metal, the base leg being connected with the flat wall against which it is juxtaposed by the mechanical connection described above.

Abstract: This selective flusher for water closets has a horizontal base plate, the front end of which is secured to the top of the flush pipe by the valve seat. This base plate has a corresponding opening at the front end thereof to allow passage of water through the flush pipe, a fulcrum post and fulcrum pin at the midportion thereof, and a tail guide at the rear thereof. A generally S-shaped valve lever is normally seated on the fulcrum pin and a flush valve is secured to the downwardly extending front end thereof to normally close the valve seat. At the front portion of said S-shaped valve lever is adjustably secured a gauge float, while at the midportion thereof is disposed a main-float two-thirds of which is to the rear of the fulcrum pin while one-third thereof is to the front of fulcrum pin. Said S-shaped valve lever has a vertical slot at the midportion thereof into which a catch plate is pivotally mounted.

Abstract: The continuous paper web, unwound from a feeding roll, is first passed through a perforation station to generate pre-established tear-off lines and then through a severing station where it is severed into sheets of the desired length. From the severing station, the web is advanced to the winding station, to which the cardboard cores supported at their ends by two idle mandrels are also supplied. The winding station is defined by two endless belts diverging from each other in the direction of the outlet from this station and moved at different speeds. At the inlet of the winding station, the cardboard cores are rotated by said belts, whereby the length of paper web advanced to said station by the lower belt is wound onto one of said cores. The so-formed roll is transferred to a discharge station, where it is released by disengaging the mandrels from the ends thereof. The two free mandrels are then transferred to a loading station where they pick up a new cardboard core.

Abstract: A bath seat adapted to be placed in a bath tub so an individual can sit on the bath seat for bathing including a seat having a seating area, a central exposure opening and a front exposure opening, the central exposure opening being positioned so the buttocks area of an individual is exposed and the front exposure opening being positioned so the genital area of an individual is exposed when an individual is sitting on the bath seat to facilitate the bathing of such individual.

Abstract: Drive units for effecting torque-transmission via a non-rotating sealing tube are provided for various fields of use where a positive sealing is required for a shaft that passes through an aperture (e.g. a propeller shaft transmission). The shaft (4), rotatable about an axis (5), is freely mounted in a bearing bush in an aperture (3) in a wall (2) of a housing (1) that can take many forms. The other end of the shaft (4) is located in a blind-bearing. An intermediate eccentric portion (6) is provided on the shaft, which passes through an eccentric aperture (8) in a main eccentric. A non-rotating sealing tube (7) passes through this aperture, surrounding the portion (6), and is sealed by diaphragms, bellows or flexible hoses extending from each end to the related end of the shaft, where a static seal is formed.

Abstract: A baby bath of one-piece molded plastic for temporary use in a single or double basin sink, or on a flat surface.

Abstract: A one-piece, investment cast stator structure is provided including inner and outer shrouds 14 and 12 with a hollow airfoil-shaped vane therebetween and with areas 34, 36, 42 and 44 in the vicinity of the intersections of the shrouds with the airfoil vane walls being of reduced thickness relative to the remainder of the shrouds to provide improved properties of the material in these areas to better respond to thermal stresses imposed on the structure.