Abstract: An electrical circuit for controlling various functions in a plurality of dishwashers having common features of a washing chamber containing a quantity of washing solution, means for heating the washing solution, a temperature sensor arranged to respond to the temperature of the solution, a pump for circulating washing solution through a spray head, and an electric motor for driving the pump. The control circuit includes a plurality of circuit boards for controlling the sequence of operation of the dishwasher, overheating protection for the pump motor, and the means for heating the washing solution. Many circuit boards contain indicating lamps in the form of light emitting diodes to indicate proper operation of the circuit. Other circuit boards include optional features, such as automatic initiation of the washing cycle upon the closure of the door.

Abstract: A valve particularly adapted for use in obtaining a constant fluid flow output from a variable high pressure fluid input. The valve body includes a fluid passage extending therethrough having a valve seat intermediate the ends thereof. A fluid inlet communicates with the end of the passage on the upstream side of the seat and a fluid outlet communicates with the passage on the downstream side of the seat. An elongated actuating stem is closely received in the passage and includes a plurality of spaced radially extending fins disposed along a portion of its length. Each fin then includes a pair of oppositely disposed orifices to facilitate fluid flow therethrough and the fins are selectively positionable on the stem to provide variable flow characteristics through the valve. The rate of fluid flow through the valve may be easily regulated by adjusting the degree of insertion of the stem within the passage so as to yield the desired constant output flow rate.

Abstract: A hydrodynamically balanced quiet control valve for a submarine (underwater ehicle) hovering system. The valve has a cylindrical valve element within a four-port valve housing. The interior of the valve element is divided into three chambers by a pair of parallel partitions extending lengthwise of the element and equally spaced from the element axis. Apertures in the cylindrical wall of the element are arranged, in cooperation with the partitions, to produce substantially constant total flow resistance through the valve when installed in the system, regardless of the angular rotation of the cylindrical valve element. A hover computer controls the angular position of the element in response to sensed pressure variations from the pressure at a preselected hovering depth.

Abstract: A climb and dive valve for use as in a pressurized aircraft fuel tank characterized in that the movable valve member thereof is opened to vent the fuel tank in response to predetermined increase in tank pressure with respect to ambient pressure, and is opened by a valve actuator to admit ambient air into the fuel tank in response to predetermined decrease in tank pressure with respect to ambient pressure.

Abstract: A conduit with inlet and discharge ends respectively for receiving a supply of air under pressure and for delivering the air at a lower pressure has a cylindrical configuration and an eliptical butterfly type damper is disposed diagonally therein. The damper turns about an axis intermediate its diagonally opposite ends and the oncoming air stream thus impinges on the upstream face of the damper on opposite sides of the axis and creates a differential force, the said differential force tending to close the damper and constituting a first closing force. A second closing force for the damper is provided by a small bellows supplied with air through a small conduit from the downstream side of an orifice member disposed in the main conduit upstream of the damper. A second and substantially larger bellows serves to open the damper and a small conduit connects the said bellows with a controller supplied with air from an upstream side of the orifice member in the main conduit.

Abstract: A multiple plate valve is provided which is designed to continue to function to close off a conduit even after portions of the valve have worn. The valve includes a body portion in the form of a pair of outer cover members each having an aperture therein, at least a pair of closure members, such as plates, operatively retained between said outer cover members and adapted to be moved between open and closed positions and to cooperate with each other to close off the apertures in the outer cover members, and means for repositioning the closure members with respect to each other and the apertures, as the closure members wear out, so that the closure members will continue to cooperate with each other to close off the apertures.Such a valve is particularly useful where it is employed in a conduit used for delivering abrasives or caustic chemicals which tend to wear out the closure members of the valve.

Abstract: A valved cap is provided for the top of a riser pipe connected to a flow line under pressure such as may be found in irrigation systems and is normally closed when the system is in operation. The valve automatically opens when the system is stopped to admit air for preventing a vacuum build up and closes under pressure when the system is started up during which time air in the riser pipe is permitted to escape to avoid a pressure build up while the valve is closing. An apertured fitting connected to the valve stem within the riser pipe connects to a flexible air vent hose extending down the riser pipe and into the main flow line in the direction of the flow and air trapped in the riser pipe after the valve is closed is siphoned through the hose into the main flow line to be expelled into the atmosphere at an outlet in the main line.

Abstract: A combined electrical switch and fluid control device is disclosed, for simultaneously performing electrical and fluid power control functions. For example, the device may be employed on an automotive vehicle for controlling the operation of electrical components and vacuum operated devices. The control device is particularly well adapted for controlling the operation of a heating and air-conditioning system for an automobile or some other automotive vehicle. The control device may comprise a casing, a control member movable in the casing along a predetermined path, electrical switching means in the casing and operable by the movement of the control member along such path, fluid control means in the casing and including a valve member movable in the casing in a direction transverse to the path of the control member, and camming means operable between the control member and the valve member for moving the valve member transversely to such path in response to movement of the control member along the path.

Abstract: A gas conveying means and more particularly a gas conveying means such as a flue or duct having an improved damper valve and improved operating means therefor.

Abstract: Quieting means for a fluid flow control device is shown in connection with a typical pressure relief type valve. The quieting means consists of a stack of washer-like members or disks which cooperate to define a large number of finely-divided flow paths across the stack of disks. To provide a configuration which is very economical of space, the disks are arranged such that the flow path turns back and forth through different planes. Groups of flow paths are defined by a number of groups of two or three perforated disks confined between two imperforate disks. In one embodiment, two perforated disks having patterns of small vortical flow directors are positioned on opposite sides of a similar disk having a pattern of small orifices.

Abstract: A safety valve for pressure fluid flow lines and which may be utilized in combination with a punch tee, said valve being responsive to pressure differentials acting thereacross for automatically closing to preclude accidental loss of pressure fluid from the line. The valve comprises body means adjustably secured in communication with the pressure fluid of the flow line, valve seat means provided on the body means, cage means carried by the body means, ball means loosely disposed in the cage means to provide a normally open position for the valve and responsive to pressure differentials thereacross for automatically engaging the valve seat to provide a closed position for the valve, locking means adjustably disposed in the proximity of the body means for providing a predetermined positioning or setting for the body means for calibrating the pressure responsive sensitivity for the ball means, and means for selectively opening the valve against said closing pressure differential.

Abstract: A handle-carrying operating plug serving also a valve body-closing bonnet function, having a threaded internal engagement with the body, has a sliding relatively rotatable lost motion connection with an internal valving stem carrying a valving member, whereby the valving member, displaced to open position by plug-rotation in one direction, is permitted to advance in the body from an open position to a closed position under water flow or static pressure or/and spring bias, as the plug moves out upon rotation in the other direction for valve closing, and with a permitted further plug member rotation after valve closing, a drainage passage through the plug opens by relative axial motion of plug and stem; and by further rotation the plug is withdrawable for cleaning of a filter on the outlet side of the valving region in the body, the filter being plug-supported, spring biased to follow the plug to the body mouth, or merely body supported; ensuring a shut off condition when the valve body is opened for cleaning o

Abstract: A system for controlling a pneumatic rising stem valve by a stepping motor is disclosed. A pressure regulator is connected to the stepping motor so that the air pressure applied to the valve can be varied according to the signals applied to the stepping motor.

Abstract: A remotely operable safety valve mounted between the swivel and the kelly in drilling operation including a spherically-shaped valve element which is mounted in a generally tubular housing rotatable with the swivel sub, the kelly and the drill string. Hydraulic means move the valve element between open and closed positions in order to control flow through the drill-string and prevent in-line blow outs. As an additional safety feature, spring means move the valve element to a closed position in the event of a failure of the hydraulic means.

Abstract: The present invention relates to an apparatus or device for storing elongated flexible elements, such as drilling pipe, in a coiled form. This apparatus includes an inner cylindrical framework supported about a vertical axis, an outer cylindrical framework concentrically separated from the inner framework and connected thereto by an annular base plate closing the bottom of the apparatus. The space between the inner and outer frameworks is open at the top to receive the elongated elements, and the annular base plate is formed of a plurality of annular sector elements connected together in such a manner as to allow a vertical displacement of respective adjacent elements with respect to one another. Various means for connecting adjacent elements are provided. Moreover, various driving and supporting members are provided for rotating the apparatus about the vertical axis.

Abstract: A basement sump construction characterized by a sump chamber including a side wall provided with a drain outlet opening. A trap apparatus for the unidirectional flow of water is removably mounted on the sump side wall so as to be easily accessible to cleaning and servicing through a top access opening in the sump.

Abstract: A burner block valve assembly for controlling the flow of oil and steam to a steam atomized oil burner which includes a tapered valve plug rotatable in a tapered bore of a valve body between an open burner ignited position and a closed burner extinguished position, the valve body including upper and lower diametrical ports having inlets respectively connected to an oil source and a steam source, and outlets commonly connected to the oil burner. Passages in the valve plug directly connect respective inlets and outlets in the open position to provide atomizing steam and oil to the burner tip, the steam passage including circumferential offset passage which provide steam flow to the burner tip in advance of oil flow as the valve plug is rotated to the open position thereby assuring atomizing steam prior to initial oil flow.

Abstract: Disclosed is a lock for a valve having a stem which by rotation controls the opening and closing of the valve. The lock essentially comprises a housing having a first opening therein to receive the stem and a second opening; a locking member is disposed in the second opening and comprises a terminal portion which in its closed position contacts the stem and prevents the stem from rotating, a middle portion connected to the terminal portion and having a periphery substantially equal to the greatest periphery of the second opening, and an end portion connected to the middle portion and having a periphery less than the greatest periphery of the second opening.

Abstract: A pipeline comprises plastic pipe lengths interconnected by plastic couplings with telescoped joints and with plastic valves in each coupling. The pipeline is enclosed and supported by an adjustably suspended sheet metal housing assembly with a charged wire thereon to keep off fowls.

Abstract: A hose reel apparatus for garden and other type hoses which rewinds the hose after it has been pulled from the reel and automatically shuts off the flow of fluid through the hose and drains the fluid from the hose after it has been rewound. The apparatus includes a fluid motor powered by the fluid which is also directed through the hose, and fluid valving utilizing fluid pressure for stopping fluid flow through the hose. The valving is responsive to an increase in fluid pressure resulting from restriction in the rotation of the hose reel after the hose has been rewound.