Abstract: A retarding valve at a single-tower air drier for obtaining a controlled time for the flow of regenerating air from an air tank to a desiccant cartridge has a movable valve stem (7), which is provided with a piston (14) having a slightly smaller diameter than a chamber (13), in which it is movable in hydraulic oil (15), so that a narrow circumferential slit for the oil is formed. The valve stem with its piston is biased by a spring (16) from a position--at the beginning of each regenerating cycle--permitting flow through the valve to a position closing off flow through the valve.

Abstract: The faucet comprises a closure member (64) between a gas-outlet passage (60) and an intake passage (62), an outer operator connected to the closure member (64) in order to displace the latter between an open position and a closed position, and a pressure reducer (66) for controlling the pressure at which the gas flows out in the open position of the closure member (64).In order to enable the bottle to be filled, and the gas to be drawn off through the same aperture, a duct (76) is provided, branched between the intake passage (62) and the outlet passage (60), short-circuiting the pressure reducer (66) and provided with a non-return valve (70) the filling gas to flow from the outlet passage (60) to the intake passage (62) and preventing gas from flowing in the opposite direction.

Abstract: A unitary diaphragm assembly for use in conventional flush valves. The diaphragm assembly has a flexible diaphragm which includes a seating portion and a mounting portion at the outer peripheral edge. A flow ring is positioned adjacent to the seating portion of the diaphragm. An elongated barrel member extends from the diaphragm in a longitudinal direction and includes a plurality of radial guides positioned circumferentially around the outer surface of the barrel member along a portion of the length of the barrel member. A second embodiment has a flexible diaphragm connected to a cylinder slide. The cylinder slide includes a longitudinal barrel member with a relief valve positioned in the interior of the lower portion of the barrel member.

Abstract: A multiple state pinch valve selectively controls the flow rate of fluid flowing within a flexible, resilient pinch tube. The valve includes a housing, and two biased pivot arm pinchers pivotally mounted in the housing on opposite sides of the pinch tube. Two springs bias respective ones of the pivot arm pinchers toward one another to pinch the tube, and two electromagnetic force field generators are mounted in the housing to selectively attract respective pivot arms away from one another to thereby selectively release some of the pinching of the tube.

Abstract: An improved system and method are provided for normally interconnecting a stationary flow line and a flexible flow line, and for automatically separating the flow lines in response to movement of the flexible flow line in excess of a preselected limit. A connection comprises a socket housing sealed to one flow line and a ball housing sealed to another flow line. The housings are separated automatically when a lateral force is transmitted through the flexible flow line to cause excess pivoting movement of one housing related to the other housing. The connection of the present invention is particularly useful for preventing rupture of a flow line during an intermittent pullaway of a portable vessel with respect to a stationary holding tank. In one embodiment, the connection includes at least three ball swivel surfaces for mating engagement with a socket swivel surface.

Abstract: A stopcock, in particular for burner fittings, having a housing and a truncated-cone-shaped plug rotatably inserted therein, a spindle of the plug extending through a fixed retaining disk and being provided with a setting nut by means of which a bearing is held between retaining disk and plug, wherein one bearing each is provided on either side of the retaining disk, and the retaining disk or a part of the same is attached to the housing in such a way that it can be set relative to the housing in the axial direction.

Abstract: A valve unit installed in the pipeline equipped with double tubes. A valve body has an inlet passage, an outlet passage and a valve chamber. An inner tube of an inlet double tube is welded to the inlet passage of the inlet double tube, and an outer tube of the inlet double tube is secured to the valve body. The outlet double tube is also attached to the valve body. A cover is welded to the valve body, the inlet double tube and the outlet double tube. Passages are provided for leading leaked gas from the valve chamber to conduits formed between the outer tube and the inner tube of the inlet double tube and the outlet double tube.

Abstract: A slit valve apparatus associated with an aperture in a chamber wall through which a semiconductor wafer may be passed along a transfer plane. The apparatus is characterized by a valve seat which is angled relative to the transfer plane and a door which moves linearly along an axis substantially perpendicular to the valve seat. All frictionally engaged parts of the slit valve assembly are isolated from the interior of the chamber by a bellow sleeve to reduce the formation of particles. The method is characterized by the steps of surrounding the aperture with a first seating surface defining a sealing plane which is angularly disposed with respect to the transfer plane and engaging or disengaging a second seating surface with the first seating surface by linearly moving the second seating surface in a direction perpendicular to the sealing plane.

Abstract: A automatic dishwasher protective system is provided for intercepting and preventing an accumulation of leakage liquid into an area beneath the dishwasher prior to the leakage liquid contacting the underlying surface on which the dishwasher is supported. It also includes an element in the intercepting and preventing means for diverting leakage liquid from the dishwasher away from an area beneath the dishwasher, and alerting a user of the dishwasher that leakage liquid is being emitted into the area beneath the dishwasher. The protective device includes a wedge-like rear wall for installing the protective device beneath an installed dishwasher without requiring the removal of the dishwasher.

Abstract: A shut off valve has a valve lock that snaps onto a cylindric of the valve body and locks the shut-off valve in its open position by retaining the cross bar of a rotatable T-shaped handle in a parallel position in a housing portion of the valve lock. The valve lock also snaps onto the cylindrical end section to retain the cross bar in a perpendicular position at the end of the housing portion to lock the shut-off valve in its closed position.

Abstract: A squeeze off tool for a flexible pipe includes a vice arrangement involving a first member below the pipe and a second member above the pipe, with a framework guiding the second member for movement toward and away from the first. A power screw has one end rotatably mounted in the second member but cannot move axially with respect to the second member, the power screw having external threads at a location remote from the one end. A locking device selectively restrains rotation of the power screw with respect to the second member.

Abstract: A three row condenser for cooling alternative refrigerants for use in automotive air conditioning systems has a continuously formed U-bend tube forming the air inlet to the condenser at a point upstream of second and third rows of like tubes each interconnected by parallel heat conducting cooling fins; the high pressure vapor inlet flow to the condenser is substantially equally distributed into the first, second and third rows and refrigerant flow in the first and second rows of tubes is combined upstream of the outlet of the condenser to provide a series connected tube pattern for increasing the flow velocity through outlet portions of the first and second rows of tubes so as to improve the efficiency of energy transfer between the refrigerant flow through the condenser and the air flow across the air fins therein.

Abstract: The invention regards a valvular device for the drawing of compressed air from a stationary tank through a mobile unit. The device has a fixed part 12 connected to the compressed air tank 10 with a coupling pipe union 14 and an inlet valve 16 for the air from the tank to the pipe union 15. The device also has a mobile part 13 on a mobile unit with a drawing nose 21 which is inserted into the pipe union 14 for the drawing of the air to be utilized.

Abstract: An anti-corrosion plug for closing a threaded condensate drain opening in a compressor air tank. The plug is formed from a material having a lower potential in the electrochemical series than said air tank to prevent electrolytic corrosion of the tank. The plug has a central cavity open to receive any condensate in the tank. An acid neutralizing insert, for example, of limestone, is located in the cavity to neutralize any acidity in the tank condensate.

Abstract: Agricultural chemicals, such as herbicides, pesticides and fertilizers, are typically sold as a liquid concentrate and are transported in plastic tanks which commonly range from 15-160 gallons in size. Often these tanks are manufactured using conventional rotational molding techniques from a thermoplastic such as high density polyethylene (HDPE). When full of liquid these tanks are heavy and are typically moved using a forklift or other suitable powered apparatus. The bottoms of these tanks flex up and down when full and further vary in size due to manufacturing variances and the physical properties of the plastic itself. The flexible suction pipe is typically installed in one of these tanks and is designed to keep the inlet of the suction pipe at or near the bottom of the tank despite flexing and other variables to maximize withdrawal of fluid from the tank. The flexible suction pipe includes an elongate flexible bellows which expands and contracts as the situation may demand.

Abstract: A quick disconnect fluid coupling for a liquid-cooled, preprogrammed card for an aircraft communication or navigation system, the coupling being made up of male and female coupling elements which are closed to flow in the free or uncoupled state and which are open to flow when coupled. The male coupling element has an integral pressure relief feature which operates in two phases. In a first phase the male coupling element remains closed to fluid flow, but accommodates an increase in fluid pressure by movement of an annular valve sleeve within an outer annular member to increase the fluid volume within the annular member.

Abstract: A vacuum valve for use in a tanker is constructed with means for releasing a supplemental force on the valve body if the pressure drop across the vacuum valve rises substantially above a value designated for the vacuum valve. Such an extraordinary rise of the pressure drop will occur by escape from an injury under the water-line caused by grounding, and the supplemental closing froce will therefore close the valve very fast and will thereby contribute to maintaing a high vacuum in the tank, counteracting continued escape.

Abstract: A coupler for sampling specimen comprises a socket having a central hole, a plug insertable in the central hole of the socket, formed therein with a fluid passage for communicating with the interior of the supplying pipe and having a fixed position at which the socket is fixed to said plug, and a valve provided in the plug, adapted to close the fluid passage at the fixed position and having a sampling position at which the valve opens the fluid passage.

Abstract: A single-stage desiccant regeneration system for use in an air conditioning system, the regeneration system comprising a falling film heat exchanger for transferring heat from concentrated desiccant to dilute desiccant, a boiler for regenerating dilute desiccant, piping for flowing dilute desiccant from the air conditioning system upward through the heat exchanger, and a flow path for directing concentrated desiccant from the boiler through the heat exchanger and to the air conditioning system.

Abstract: A quick disconnect coupling for a liquid line, the coupling having male and female coupling elements each of which is closed to flow in an uncoupled state and opened to flow when coupled. The male coupling element is made up of an outer annular member and an annular body which is positioned within the annular member and which is slidable with respect thereto, an annular retainer being positioned concentrically between the annular member and the annular body and being affixed to the annular member to be non-slidable with respect thereto. The annular body is resiliently biased against an internal shoulder of the annular member by a wave spring which is trapped between an external shoulder of the annular body and an inturned flange of the annular retainer, A valve member is positioned within the annular body and is slidable with respect thereto.