Abstract: A mounting assembly for holding a heat exchanger particularly of the type used in administering cardioplegia during heart surgery. The mounting assembly both mounts the heat exchanger and provides heatexchanging fluid (e.g., water) to the heat exchanger. The mounting assembly also includes a valve and sealing mechanism which are simultaneously operated to ensure that the valve is not opened until after the heat exchanger is properly sealed. The sealing mechanism includes an expandable seal that is designed to hold the heat exchanger on the mounting assembly.

Abstract: A hardened needle and seat are provided in a dispense valve wherein the seat is spring loaded such that when the needle is pulled back against the seat, the seat moves away from the dispense opening causing a "snuff back" effect. Hardened seats and needles are utilized to provide long life and one or more components may be run using the same general valve mechanism at predetermined ratios.

Abstract: A push-to-connect, pull-to-disconnect ball detent coupling operable with one hand has a socket, a plug, detent balls carried by the socket for holding the plug in coaxial coupled relation, and spring-biased sleeves on the socket and on the plug. The socket sleeve spring is located in an annular passageway between the sleeve and the socket on the side of the detent balls opposite the coupling end of the socket. The plug sleeve spring is located in an annular passageway between the sleeve and the plug on the side of the detent retaining means opposite the coupling end of the plug. During coupling movement, the outer terminal end of the plug sleeve engages the outer terminal end of the socket sleeve to move the socket sleeve to actuate the detent balls.

Abstract: An apparatus for connecting two double vacuum pipes for conducting cryogenic fluid consists of a tubular connecting mechanism connected to the outer tube of a double vacuum pipe by a tubular member, a one-touch locking mechanism connected to the outer tube of the other double vacuum pipe by another tubular member inserted in the first-mentioned tubular member, a warming chamber defined between both tubular members, valve mechanisms respectively provided between the tubular members and the inner tubes of the double vacuum pipes which valve mechanisms cooperate to close the inner tubes of the respective double vacuum pipes at the closed position so as to make the inner tube of one of the double vacuum pipes communicate with the warming chamber during the connection of both the double vacuum pipes and to cause the inner tubes of both double vacuum pipes to communicate with each other.

Abstract: A coupling which can be used in fueling lines (L1, L2) or the like, the coupling having a closure device which blocks the flow path of the fluid and are brought automatically into closed position as a function of a sensor-recorded displacement of the feed line with respect to the discharge line; in order to achieve a functionally optimized solution, the coupling is developed as rapid-closure coupling (K) having an ejector ram (41) acted on by pressure fluid as a result of the action of a sensor, for the separation of the two coupling halves (I, II) which have previously been brought individually into the closed position (closing of the shut-off valves V1, V2), also due to the action of a sensor.

Abstract: A device for the remote filling of an oil tank, particularly an oil tank of an aircraft engine, is provided with a lock which interconnects the inlet nozzle of the oil filler and the outlet nozzle of excess oil remover so that the oil supply pipe cannot be connected to the inlet nozzle to supply oil to the tank until the removal pipe has been connected to the outlet nozzle of the excess oil remover. The lock includes a locking member which engages in a notch in a slide valve housed in the inlet nozzle to prevent the valve from moving to open the nozzle while a slide valve in the outlet nozzle is closed, but which moves clear of the notch when the outlet nozzle slide valve is opened by connection of the removal pipe to the outlet nozzle.

Abstract: A modular gas services outlet unit for providing gas related services, such as compressed air, oxygen and vacuum, to a health care facility. The unit is enclosed within a shell which may be mounted on a surface or installed in a recess in a wall. Preferably, each of the gas service devices utilized in the unit is supported by a swivel connector assembly which allows the gas service device to be moved between an operating position in which the device extends a distance outside the shell and a storage position in which the device is contained entirely within the shell. In this way, when the gas service is not required the fully assembled gas service device can be rotated to the storage position inside the shell. In most instances the unit will include a cover which is slidably mounted over the shell for concealing the unit when none of the gas services are in use.

Abstract: A self-sealing coupling for connection to a fluid fitting having an open end of predetermined configuration includes an adapter having an axial passage and an open end contour to be received over the open end of the fitting. A poppet is disposed in the passage and extends to the open end of the adapter for engaging the fitting as the adapter is received over the fitting. A spring is disposed in the passage for urging the poppet into sealing engagement with the adapter, and a coupler nut is rotatably mounted on the adapter for releasably threadably fastening the adapter and coupling to the external threads of the fitting. The adapter passage includes a conical seat opposed to the poppet, and the poppet includes a conical shoulder opposed to the seat and of greater diameter than minimum diameter of the seat. This conical seat/shoulder construction not only enhances sealing between the poppet and adapter, but also makes the poppet self-centering within the adapter passage.

Abstract: A multi-port shut-off valve assembly of the type known to the plumbing industry as an angle stop. The valve has a body shaped as a solid rectangle, with an internally threaded port in each face of the body. A shut-off valve is received in one of the ports, and it controls the flow of water entering the body from another of the ports to the remaining ports. A number of fittings are threaded into the remaining ports, the fittings being either compression unions or compression reducing unions, and each of the fittings has external threads at each end thereof. Water-carrying tubes are respectively coupled to the fittings by compression nuts threaded thereto.

Abstract: A heat exchanger for cooling synthesis gas generated in a coal-gasification plant has heat-transfer pipes (1) that the gas flows through, that are secured in two slabs (2 & 3) of piping, and that are enclosed in a jacket (4). The gas intake-end piping slab (2) is protected by a layer of ceramic flooring. The flooring consists of adjacent block-shaped sockets (12), each of which has an opening (15) that tapers together conically into a pipe section (14) that extends into one of the pipes (1).

Abstract: A fluid control valve including a housing defining a fluid inlet and a fluid outlet, and two eccentrically and rotatably mounted, oppositely disposed plug elements arranged for selective sealing of the inlet and outlet, the plug elements being coupled to a stem arranged to move in a direction perpendicular to the fluid flow for simultaneous pivoting of the plug elements.

Abstract: An assembly for regulating the flow of liquid includes a housing made of a first, second and third housing part. The housing parts being placed immediately following one another in the flow direction. The second of three housing parts constitutes a component of a discharge shutoff valve and a component of a flow regulating valve into which a flow-through conduit is integrated between the discharge shutoff valve and the flow regulating valve immediately following it in the flow direction. The assembly includes no freely moving parts and is distinguished by a compact construction.

Abstract: A shut off valve, of the type having a normally open main valve that closes in response to a shear force of greater than a predetermined magnitude, and a normally closed secondary valve that opens in response to a predetermined fluid pressure, wherein the main valve is contained in a first sub-housing and the secondary valve is contained in a separate second sub-housing, downstream from the first sub-housing. A hollow, tubular shear fitting, having an annular shear groove, has an upstream end removably coupled to the downstream end of the first sub-housing, and a downstream end removably coupled to the upstream end of the second sub-housing, where by the first sub-housing, the shear fitting, and the second sub-housing are axially aligned so that they define a continuous internal flow passage from the upstream end of the first sub-housing to the downstream end of the second sub-housing.

Abstract: A high flow emergency valve contained within an interior of a storage tank having an opening and a valve seat about the opening including a housing member for sealing and unsealing the valve seat, a push rod member for engagement with and activation of the housing to seal and unseal the valve seat, the push rod including a first portion positioned within the housing and a second portion extending out of a housing aperture to the tank exterior for manipulation from the exterior of the tank to open and close the valve seat, a sleeve member for substantially enclosing the first portion of the push rod within the housing and providing sealed sliding engagement between the push rod and the sleeve, a connecting member for attaching a portion of the sleeve against movement with respect to the valve seat, an engagement member between the housing and the sleeve for sealed sliding movement of the housing with respect to the sleeve, and a biasing member for maintaining the housing in a normally closed position with resp

Abstract: A sensor-activated, battery-powered toilet room flush valve has a body with an inlet and an outlet. There is a valve seat in the body and a diaphragm which closes upon the seat to control flow between the inlet and the outlet. A cover mounted on the body defines a pressure chamber with the diaphragm and there are a sensor, solenoid and battery mounted on the cover and connected for operation of the flush valve. There is a passage in the cover connecting the pressure chamber and the outlet. Operation of the solenoid opens the passage to relieve pressure in the chamber to the outlet whereby the diaphragm moves off its seat to open communication between the inlet and outlet. A stop is positioned within the chamber and attached to the diaphragm to limit its movement toward the cover, which in turn controls the volume of water passing through the flush valve prior to closure of the diaphragm upon its valve seat. The stop is adjustable from the outlet side of the valve.

Abstract: A tamper-evident cap structure cooperates with a one-way, anti-disconnect strap so that the cap can be screwed onto or secured to the service port of an air-conditioning system, and the anti-disconnect strap can be then looped around both the cap and the refrigerant flow pipe supporting the service port. The anti-disconnect strap can form a permanent part of the cap, or it can be removably secured to the cap; in either case unauthorized entry is indicated by the need to break or sever the strap. Also provided with the anti-disconnect strap is an identity tag upon which the identity of the service organization and date of service can be recorded when a new cap-and-strap assembly is used.

Abstract: In order to improve the operating capabilities of a plug-in coupling for hoses comprising a sleeve, into which a hose stem can be sealingly inserted, a U-shaped, elastically deformable locking element which is held on the sleeve for displacement at right angles to its longitudinal axis and engages with its two arms behind a projection on the hose stem and hereby prevents its withdrawal, and wedge surfaces arranged on the sleeve, on which the two arms of the locking element abut and which spread these arms elastically apart during displacement of the locking element to such an extent that the hose stem is released, it is suggested that the locking element be formed by a U-shaped housing which has an upper wall and two side walls and surrounds the sleeve essentially over its entire length, that the arms be projections formed on the side walls and that the upper wall of the housing be designed as a pressure surface.

Abstract: A diaphragm valve assembly adapted for use in irrigation systems as a zone valve includes a solenoid-operated diaphragm to control flow through the valve under normal operations, and a ball valve is situated between an inlet port and one or more outlet ports and is selectively movable to a position closing the valve to prevent liquid flow therethrough independently of the opening and closing of the diaphragm so as to permit servicing or repair of the valve without shutting off the entire system.

Abstract: A lockout module comprises a housing having at least one lockout bore therethrough, a spindle disposed in the housing and having a pair of lockout cross bores therethrough, and a lockout pin selectively insertable through the housing lockout bore and one of the spindle lockout cross bores for blocking rotation of the spindle relative to the housing in first or second position. Slotted bolt holes spaced through and around the periphery of the housing are utilized to secure the housing to a mounting bracket and valve actuator. The slotted holes allow the housing sufficient rotational travel such that the housing lockout bore can be rotatably aligned with a selected spindle lockout cross bore before securing the bolts, thereby compensating for under or over travel of a valve in the open or closed position.

Abstract: A convection air holding zone utilizes turbulent ejector air flow along paths parallel to the path of travel of the article being baked in a paint bake oven. Air recirculation means are provided within the convection air holding zone which filters dirt particles from the air and a heat source is applied to the air to compensate for temperature loss due to heat exchange with the article and oven walls. Maintaining a turbulent air flow over the articles being baked in the convection air holding zone helps insure an even temperature throughout the zone, thereby enabling a more consistent paint finish on the article.