Abstract: This invention discloses a D.C. magnetic latching solenoid that retains a moving armature in a first or second position by means of a pair of magnets, thereby having a zero-power requirement after actuation. The first or second position is selected by reversing the polarity of the D.C. voltage which is enough to overcome the holding power of either magnet and transfer the armature to an opposite position. The coil is then de-energized.

Abstract: A multiple-valve system is transiently electromagnetically actuated by a single electrical winding, for concurrent change of state for each of the multiple valves, and a permanently magnetized portion of involved magnetic circuitry serves to latch both valves in the operative state into which they have been actuated. The preferred embodiment is based on valve-body structure which is a unitary consolidation of plural slabs of magnetic material in alternation with slabs of non-magnetic material. An electromagnetic actuator includes a U-shaped core having pole faces secured to the uppermost slab, in confronting relation with valve members of magnetic material. A first polarized magnetic-latch circuit exists via the U-shaped core, together with the valve members and a magnetized body slab when in valve-open condition. A second polarized magnetic-latch circuit exists via the magnetized slab, the valve members and another magnetic slab, when the system is in valve-closed condition.

Abstract: The present invention relates to pressure adjustment valves for circuits for the manual administration of gas mixtures in the medical field, such valves including a body that can be interposed on the circuit of a manual respiration unit and which has an intake port and a discharge port. Means are provided in the body of the valve which means can be positioned to vary the useful passage section of the gas stream within the valve in order to modify the resistance created by the adjustment valve to the gas steam.

Abstract: The valve includes a tubular body made of a non-magnetic material, a seat carried by the tubular body, a closure member disposed inside the tubular body and facing the seat, the closure member including a valve member connected to a drive ring made of a magnetic material extending substantially coaxially with the tubular body and facing a magnetic field generator disposed outside the tubular body and associated with a control member.

Abstract: A shock-activated shut-off valve including a housing having an upper chamber and a lower chamber separated by a flap-gate pivotally connected to the housing, the lower chamber comprising an inlet orifice, and outlet orifice and a flap-gate stop means; a weight; a shock-actuated retainer defining a weight-passable opening and a latching means comprising a receptacle arm pivotally connected to a counter-weight and a flap-gate actuator, wherein, in one position, the counter-weight maintains the receptacle arm and the flap-gate in a horizontal position and the weight rests on the retainer and wherein, in another position, upon shock-actuation, the weight disassociates from the retainer and, subject to vertical acceleration, engages the receptacle arm, exerting a force which exacts pivotal movement of the counterweight to allow release of the flap-gate from a horizontal position to a position engaging the flap-dash gate stop means, thereby closing the inlet orifice from the outlet orifice.

Abstract: The present invention comprises of a reset mechanism particularly suited for use within magnetic valves. The reset mechanism will insure the desired return of a magnetic valve to its normal position even though there exists an imbalance of fluid pressure between the magnetic valve's inlet and outlet passages. The reset mechanism's principle of operation is the creation of a pressure differential across a reciprocating valve to return the valve to its normally open position in a snap action movement. After said magnetic valve has dosed in response to a pre-determined excess of fluid pressure, thus blocking off communication between the inlet and outlet passages, a reset valve is actuated to establish a communication through a reset passage that creates a pressure differential that eliminates any opposition to and effectuates the immediate return of the magnetic valve to its normally open position in a snap action movement without having to equalize pressure across the magnetic valve.

Abstract: Disclosed is a lavage valve apparatus and a method of using the valve. The valve comprises a valve body having three apertures and a bypass passageway. A movable valve member with truncated end portions moves linearly within the valve body by means of hydraulic pressure or mechanical (or magnetic) bias. Application of hydraulic pressure via a syringe pumps irrigation fluid through the valve into the patient. Termination of hydraulic pressure allows mechanical re-seating of the movable valve member and vacuum withdrawal of the fluid.

Abstract: A closing system for an instrument passage, particularly for use in laparoscopic puncture devices. The object of the invention is to provide a closing system of safe operation which permits a non-complicated cleaning and has a simple and comparatively small construction. The object is realized according to the invention in that a closing member is a floatingly seated disc which centrally fits into a conical seat and which is held in any position only by a non-symmetrically acting magnetic force of at least one magnet, preferably a permanent magnet.

Abstract: A device that will automatically shut-off the flow of a fluid when the device senses predetermined seismic and other shock forces. The device includes a housing having an inlet and outlet in communication with the flow of fluid. An inertia ball, which moves directly or indirectly from a resting position to block the flow of fluid, is held in a closed position by the force of an external magnet. When the external magnet moves about a given path, the inertia ball moves to a resting position, thus opening the flow of fluid. The movement of the external magnet along the given path forces the inertia ball to follow the magnet, thus providing an easy way of controlling the flow of fluid without the use of mechanical seals.

Abstract: A fuel injection system that includes an injector having a pintle movable within a housing for selectively opening and closing communication between inlet and outlet ports in the housing. The inlet port is connected to a source of fuel under pressure, while the outlet port is connected to a nozzle for delivering fuel under pressure to the engine. A section of magnetic material is coupled to the pintle, and a permanent magnet is mounted on the engine flywheel, such that magnetic forces imparted as the permanent magnet moves therepast moves the pintle against a spring to open communication between the inlet and outlet ports, and thereby deliver fuel under pressure from the source to the nozzle. A cam mechanism is rotatably positioned within the pintle housing and operatively coupled to the pintle for adjustably varying stroke of the pintle within the housing, and thereby varying time duration during which the injector opens communication between the fuel source and the nozzle.

Abstract: A resuscitation and inhalation device which can be used alternatively in each of two modes. The flow of oxygen or gas is controlled by a control valve, itself controlled by a movable member acted upon by the pressure of oxygen or gas in a chamber after having flowed passed the control valve. On meeting a preset maximum pressure, the valve member moves to close the control valve. The movable valve member is acted upon by a magnetic field which is adjustable, and the magnetic field strength sets the pressure at which the valve member moves. Oxygen or gas is admitted to the control valve by two alternative inlet valves, one for resuscitation with only oxygen or gas flowing through the mask, and one for inhalation, with a mixture of oxygen or gas and air or a second gas being fed through the mask.

Abstract: A magnetic-latching of either of the selected operating positions of a two-position valve utilizes a generally toroidal magnetic circuit that is established by spaced inner and outer annular walls which are connected at their axial ends, with an inlet-port fluid-flow connection at one end to the interior of the inner wall, and with an outlet-port fluid-flow connection from the interior of the inner wall. The inner wall has a gap between axially spaced first and second annular pole faces. A single electrical excitation coil is coupled to the magnet circuit at overlap with the inner annular wall on one side of the gap. A disc-shaped armature is compliantly supported for axially shuttled displacement in the gap in alternating abutment with one to the exclusion of the other of the pole faces.

Abstract: A manual override for a magnetically operated rotary valve (10) is provided. The valve includes a rotary member connected to an internal carrier (18) that carries a plurality of permanent magnets (20). A rotary drive carrier (22) also carries a plurality of permanent magnets (24) and is separated from the internal carrier (18) by a hermetic barrier member (42). At one end the barrier member (42) is affixed to a rotatable plate member (26) that is held stationary by a removable pin (64) that interconnects the plate member (26) and a support member (56) affixed to the valve body (12). Rotation limit means are constituted by a pin (40) on the driven portion of the valve which is received in a cooperating recess (36) in the plate member (26). If the valve member jams and there is not sufficient magnetically-induced torque to free the valve member then the override of the invention will come into play.

Abstract: An electromagnetically operated valve assembly having a valve closure means attached to a vertically suspended armature supported at its top portion, is held in magnetic fields at both the top and bottom portions of the armature, caused by permanent magnets reacting to iron or other permanent magnets. The movement of the armature is guided to insure close alignment and to eliminate side play by means of a main frame assembly mounted in a pipe organ wind chest so as to control air under pressure from the wind chest into at least one pipe organ. The permanent magnet at the bottom portion of the armature cooperates with an iron core of a solenoid mounted to the main frame assembly, to close or open the valve. The valve may also be provided with a second solenoid to both assist moving the valve to the open position, and to aid in holding the valve in the open position.

Abstract: A system to stage the operation of a bank of parallel piped fluid heaters in order to avoid cycling at low demand and to spread the load evenly among two or more heaters during high demand. Each heater has a check valve at the inlet and a balancing valve at the outlet. The standard swing type check valve is modified by the use of an internal and external magnet to control the opening pressure. By adjusting the opening pressure of the check valves and balancing the system with the balancing valves, heater staged operation can be achieved.

Abstract: Disclosed herein is a drain valve for a bathtub or other gravity drained container. When energized with an electrical pulse, a solenoid mounted directly below the drain elbow drives the poppet upward, which unseals the outlet drain. A permanent magnet latches the solenoid armature in place in the up position. The valve is closed by energizing the solenoid with a pulse of opposite polarity which pulls the armature downward and out of the influence of the permanent magnet. A piston in a sleeve over-nested by a movable shroud provides leakage protection and allows manual opening and closing.

Abstract: The present invention relates to an electrically controlled leakproof valve having a fluid feed channel and at least one channel for delivering said fluid, rotary displacement of a distributor plug in said valve being under the control of an actuator. The actuator comprises an axially pierced rotor through which the fluid from the feed channel flows without headloss, the actuator being connected to the valve body in leakproof manner without using dynamic sealing devices. The present leakproof valve is particularly suitable for use in corrosive environments, and in particular under cryogenic conditions.

Abstract: A permanent magnet, proportional solenoid valve having a suspended armature which is separated from two opposing pole pieces by two normally unequal gaps having a collectively constant dimension. The magnetic field originating from the magnet extends through the gaps and is used to bias the armature to a position at which the valve is normally closed.

Abstract: A valve mechanism for an acoustic modulator which modulates air flowing tugh the acoustic modulator. The valve mechanism comprises a pair of cylindrical shaped members with each member having a plurality of elongated ports. The first cylindrical shaped member is held in a fixed position, while the second cylindrical shaped member is movable with respect to the first member. There is located at the lower end of the second cylindrical shaped member a drive coil which is positioned in a magnetic field such that when the coil is excited by an electrical sinusoidal input signal, movement of the second member occurs, partially aligning the ports of the second member with the ports of the first member which opens the valve mechanism. The sinusoidal input signal causes a frequency "doubling" to occur, that is the valve mechanism of the present invention completes an open-close-open-close cycle during each cycle of the sinusoidal input signal.

Abstract: A rotary magnetic valve including a cylindrical housing having flow passages in both ends and a magnetically-responsive valve closure assembly rotatively mounted therein. The valve closure assembly includes an armature mounted to rotate about the longitudinal axis of the housing and a shoe slideably disposed on each end of the armature. Each shoe is biased away from the armature and into contact with the inner end surfaces of the housing. A controller assembly is provided to rotate the valve closure assembly between a first position where flow through the valve is prevented and a second position where flow is permitted. The controller includes at least one permanent magnet for biasing the valve closure assembly into one of the positions and an electromagnet for rotating the valve closure assembly into the other position. A three-way valve is also possible.

Abstract: A magnetic control-type flow control valve includes a driven magnet ring disposed rotatably in a metal tube unit, a rotatable circular valve piece connected to a bottom end of the driven magnet ring and formed with first openings, a stationary circular valve piece secured in the metal tube unit and in tight contact with the rotatable valve piece, and a driving magnet ring sleeved on the metal tube unit and rotatable to rotate the driven magnet ring therewith so as to rotate correspondingly the rotatable valve piece in order to cover selectively second openings formed in the stationary valve piece.

Abstract: A fluid pressure operated piston engine assembly, such as a pump assembly, including a fluid pressure operated piston engine and a fluid valve for coupling fluid under pressure to alternative portions of the piston chamber of the piston engine. The fluid valve includes a valve spool which is translated to effect the alternative modes of coupling pressurized fluid to the piston chamber. The translation is accomplished by a shifter assembly having a shifter rod attached to the valve spool. The shifter rod includes a pair of diametrically opposed magnets attached thereto. A fork is attached to the piston engine drive shaft at one end and is mounted for limited movement along the shifter rod between the pair of magnets of the shifter rod.

Abstract: A micromechanical actuator is suggested, the movable part of which, such as the diaphragm, the bending bar or a similar device, can be moved relative to a stationary part by a combination of electromagnetic and electrostatic forces. The manufacturing techniques and the applications of the actuator are described. The construction is very compact, that is, highly integrated.

Abstract: A magnetically operated check valve is disclosed having, in one aspect, a valve body and a movable poppet disposed therein, a magnet attracting the poppet to hold the valve shut until the force of fluid flow through the valve overcomes the magnetic attraction and moves the poppet to an unseated, open position; the poppet and magnet configured and disposed to trap magnetically attracted particulate and prevent it from flowing to a valve seating region.

Abstract: A fountain faucet is comprised of a housing defining a water chamber and having an inlet communicating the water chamber and an outlet communicating the water chamber through an opening, a float valve disposed in the water chamber and movable between valve open and valve closed positions. A control unit engaged in the housing by means of a thread operable to retain the float valve in its closed position or allow the float valve movable freely between the valve open and valve closed positions.

Abstract: Water valve apparatus with distal control includes at least one valve for controlling flow of water therethrough and having a movable actuator for starting and stopping the flow of water. A permanent magnet, disposed proximate said actuator for magnetic engagement therewith, is provided for moving the actuator between a first position stopping water flow through the valve and a second position allowing water flow through the valve. A movable member is provided to alter the magnetic engagement between the permanent magnet and the actuator in order to move the actuator. A cable, having a slidable center wire attached to the movable member and a sheath attached to the valve is connected to a manually operable lever, for operating said cable in a manner causing movement of the movable member and concomitant movement of the actuator, as a result of magnetic engagement alteration, in order to start and stop water flow through the valve.

Abstract: An acceleration-responsive magnetic device for closing a valve or operating a switch or the like in response to a disturbance such as an earthquake. A pendulum operates to increase the length of a magnetic path, releasing a magnetic element to perform the desired actuation.

Abstract: A metering device for controlling the flow of granular material through a conduit. The metering device includes a electrical coil operably associated with the conduit, a ferromagnetic latching strip disposed in the magnetic field produced by the coil, and a pivoting gate including a magnet that is attracted toward and repelled from the latching strip as the direction of electrical current flowing through the coil is changed. A closed container includes the metering device secured to its bottom so that the granular material can be dispensed only through the meter. The closed container is electrically connected by wires to a dispensing controller located in the tractor cab. The granular material, such as insecticide, is simultaneously and equally dispensed at the desired rate to the seed furrows from all the individual planting units of the planter.

Abstract: A hydraulic magnetic control valve includes a base with an inlet and an outlet. A plug provided with a second magnetic member formed thereon is arranged above the outlet of the base for controlling the hydraulic flow, and the top surface of the base is mounted a driving motor. One of the side walls of the base is in a form of a slanted side wall, on which a first magnetic member is slidable upward or downward along the slanted side wall under control of the driving motor. When the first magnetic member slides downward along the slanted side wall, the control valve is in open situation permitting hydraulic material flow from the inlet to the outlet, while the first magnetic member slides upward along the slanted side wall, the control valve is in closed situation thereby stopping up the flow.

Abstract: Disclosed is a gas valve capable of switching gases to be introduced within a vacuum chamber with high speed thereby enhancing the controllability of the composion of a semiconducting thin film growing on a substrate and shortening the time required for growth of the thin film. The gas valve comprises a bendable film between a pair of parallel plate electrodes whereby operating the film by an electrostatic force and opening and closing a port for releasing gas to a substrate mounted on the wall surface of a gas chamber and a port for exhausting an unnecessary gas to an exhaust passage. The gas valve is mounted in the vicinity of the substrate within the vacuum chamber for supplying a working gas in a minimum amount required for the film growth.

Abstract: A rotary actuator for setting the rotation angle of control elements, especially of a throttle device which determines the flow cross-section in a line through which flow passes, for internal-combustion engines, having an electric actuating motor with a two-pole stator, stator winding and two-pole permanent-magnet rotor. In order to achieve a compact construction and manufacture which is easy in production-engineering terms, the stator poles are constructed as claw poles which are connected on opposite end sides in each case to an annular jacket for the magnetic return path, which jacket surrounds the claw poles with a radial gap. The stator winding is located as an annular coil in the annular space between the annular jacket and the claw poles.

Abstract: An excess flow valve comprising a valve body defining a passage for a flow of fluid therethrough, the passage having an inlet and an outlet for fluid, a magnetically attractable closure member movably located within the passage for movement toward and away from the outlet, a seat located adjacent to the outlet for receiving the closure member. A flow restriction assembly is located in the passage for defining at least two flow paths for fluid along the passage, the flow restriction assembly including a retaining member comprising a permanent magnet for retaining the closure member in one of the flow paths and away from the seat whilst there is a flow rate of fluid through the passage which is less than a predetermined rate, the retaining member releasing the closure member when the flow rate of fluid through the passage equals or exceeds the predetermined rate so that the closure member moves toward the outlet to engage the seat and shut off flow of fluid through the outlet.

Abstract: A water control apparatus having a main valve, a main valve control, and a step-wise valve. A moisture sensor is connected to the valve control. In response to the moisture sensor, the valve control opens or closes the main valve. When the main valve opens, sufficient water pressure must be present for the step-wise valve to open. When said step-wise valve opens, water flows through it and to a water distribution device that makes the moisture sensor moist. When the moisture sensor is sufficiently moist, the valve control turns the main valve off. With the main valve off, the lack of water pressure closes the step-wise valve. The step-wise valve opens at a higher water pressure threshold and closes at a lower water pressure threshold. The decrease in pressure arising from the opening of the step-wise valve is insufficient to close it. The water control apparatus is powered by water flow and is otherwise self-sufficient.

Abstract: Electromagnetically actuated valve, comprising an actuating device, a movable plunger and a valve chamber with an opening for the medium passing through it, which opening may be closed by the plunger. In order to ensure safe functioning of the valve at small closing forces, the valve chamber is totally sealed against the actuating device and the movable plunger by means of a flexible diaphragm, the diaphragm being fitted into the housing along its circumference and being pressed against the edge of the opening by the movable plunger.

Abstract: An intermittent suction device for removing fluids from a patient where the duty cycle between the OFF and ON cycles is controlled by a magnetically susceptible diaphragm that switches back and forth between first and second positions, representing ON and OFF positions, by controlling the differential pressure across the diaphragm. The diaphragm is biased toward it first position by a permanent magnet that acts to attract the flexible diaphragm. The device has few moving parts and its duty cycle and overall cycle times are easily adjusted by the user.

Abstract: A magneto-pneumatic timing device is disclosed that provides a pressure signal alternating between a high and a low pressure output signal. The duty cycle may be varied as well as the overall cycle time. A magnetically biased flexible diaphragm divides a chamber into a pair of subchambers and the differential pressure between the subchambers is controlled to cause the flexible diaphragm to pull away from the magnetic bias to one position and to return to its biased position. Control of the output pressure signal is carried out by varying the resistance in certain of the pneumatic passages that are part of the control function for the differential pressure. The device is relatively simple and inexpensive to construct and features very few moving parts, thus it is reliable and capable of high production, low cost manufacture.

Abstract: An engine emission control metering valve includes a metering ball valve element operatively connected to an electrically-energized linear actuator that includes a stationary magnet and a moving coil concentric with the magnet. The coil has a different axial length than the magnet such that application of a current to the coil causes coil-generated magnetic flux to axially push the coil away from the magnet. Coil movement translates into movement of the metering valve element through the wedging action of a cam element driven by the coil movement.

Abstract: A fuel tank comprising a filler tube, a communication passage, a charcoal canister, a cover member, a first magnetic member, and a second magnetic member along with the body of the tank. The filler tube is mounted at the top of the body of the tank. The canister is installed inside the communication passage connected with the filler tube. The cover member covers the top of the filler tube. The first magnetic member is disposed inside the filler tube and has a valve portion which opens and closes the communication passage. The second magnetic member is disposed outside the filler tube, and is moved when the cover member is opened or closed. The magnetic force produced by the second magnetic member can move the first magnetic member.

Abstract: A magnetic valve has a valve member cooperating with at least one valve opening for closing and releasing the latter, an actuating element provided for the valve member and displaceable between two end positions for the closing and releasing of the valve opening, a permanent magnet arranged in the actuating magnet and magnetizable in direction of displacement of the actuating element for holding the actuating element in the end positions, an electromagnet for producing a magnetic force displacing the actuating element between the positions. The electromagnet has a magnetic core with a yoke and three parallel legs connected by the yoke. The legs include outer legs magnetically connected with end abutments and a central leg extending to the actuating element, and an operating winding is arranged on the central leg, a bending spring has a free end, the actuating element is mounted on the bending spring, and the free end of the bending spring supports the valve member.

Abstract: A latching valve for a fluid system including a valve housing, ported body chamber, and valve lids to control fluid flow between the ports, the valve lids being actuated by a moveable springloaded armature which, in turn, is controlled by a solenoid coil and readily replaceable permanent magnet which acts independently of the solenoid coil during latching operations.

Abstract: A disposable canister containing a HEPA filtration mechanism is used in conjunction with a removably mounted vacuum motor assembly. The vacuum motor assembly draws particulate-laden air, including harmful airborne contaminants, into an inlet opening of the canister by a disposable vacuum hose. The inlet opening is made of a magnetically attracting material. The particulate-laden air is then filtered through the HEPA filtration mechanism prior to exiting from the canister as non-contaminated air. Upon termination of the vacuum force on the inlet, a hinged magnetic flap seals the inlet to the canister. The immediate and complete sealing of the inlet by the magnetically biased flap assures against escape of harmful contaminants from the canister.

Abstract: A transducer having an explosion-proof housing with a divider forming two compartments, and the divider having formed therein a well. A magnet and flapper arm arrangement is suspended within the well. A coil winding is fixed in the other compartment around the well so that a magnetic field generated thereby influences the pivotal position of the magnet. Set screws adjustable in the bottom of the well are effective to preset a rest position of the magnet.

Abstract: A proportional electrohydraulic pressure control device is disclosed. The device includes a linear motor having a permanent magnet. The magnet is radially magnetized providing first and second oppositely directed magnetic flux paths. A valve body is included which has a fluid supply port, first and second fluid control ports, and a central bore. The central bore defines first and second chambers at opposite ends of the bore. A linearly shiftable spool having first and second ends is disposed in the central bore. The first and second control ports define an annulus communicable with the central bore. A fluid source is communicable with the annulus of the control ports and supplies pressurized fluid to one of the first and second chambers. The fluid pressure in an associated chamber applies an axial force on a respective end of the spool. The spool is positional to a first neutral position causing a minimum fluid pressure at the first control port.

Abstract: Apparatus for the automatic fueling of automotive vehicles, comprising a robot which includes a fueling pistol and which is operative, to move the fueling pistol automatically from a rest position to a vehicle fueling location. The invention is characterized in that the fueling pistol (16) includes a rigid, first tubular element (20), which is intended to be moved by the robot (1) towards a receiving plate (21) provided with a hole and forming part of the vehicle fueling location. A flexible second tube (26), is arranged within the first, rigid tube (20) for movement from a first terminal position, in which the outer free end (27) of the second tube (26) is located within the first tube (20), to a second terminal position in which the second tube projects from the first tube. A pipe connector is provided between the hole and the fuel pipe of the vehicle.

Abstract: A rotational control device for the setting of angles in actuators, in particular of a restricting device used for determining the flow cross-section in a flow line for internal combustion engines, has an electrical setting motor with a two-pole status and a two-pole permanent magnet rotor. To obtain a robust setting motor, which is technically easy to manufacture in a compact construction, the stator poles are designed as claw poles and the stator winding is located as a toroidal coil in a ring space formed by the claw poles and a ring casing which is coaxial with these, for the magnetic return path. The stator winding is energized by a d.c. supply, with reversible current direction. The magnetic resistances in the magnetic return path and across the claw poles are calibrated such that in the event of a currentless stator winding, the permanent magnet rotor engages in the pole gaps between the claw poles.

Abstract: Water value apparatus with distal control includes at least one valve for controlling flow of water therethrough and having a movable actuator for starting and stopping the flow of water. A movable permanent magnet, disposed proximate said actuator for magnetic engagement therewith, is provided for moving the actuator between a first position stopping water flow through the valve and a second position allowing water flow through the valve. A cable, having a slidable center wire attached to the permanent magnet means and a sheath attached to the valve is connected to a manually operable lever, for operating said cable in a manner causing movement of the permanent magnet means and concomitant movement of the actuator in order to start and stop water flow through the valve.

Abstract: A magnetic valve has a valve chamber having at least one valve opening, a valve member adapted to close and to release the at least one opening in its abutment position, an actuating element displaceable between two end positions in the valve chamber and actuating the valve member, a permanent magnet associated with the actuating element and holding the actuating element in the end positions. The permanent magnet is magnetized in a direction of displacement of the actuating element and has two ends extending transversely to the displacing direction and provided with pole pieces. An electromagnet produces a magnetic force which displaces the actuating element between the positions, and the electromagnet has a magnetic core with three parallel legs connected by a transverse yoke and including two outer legs connected with end stops in magnetically conductive manner and a central leg extending to the actuating element and also having an operating winding arranged on the central leg.

Abstract: A hose nozzle for filling fluid into a tank and for shutting off automatically when the tank is filled is provided. The hose nozzle comprises a housing that has an inlet nozzle and an outlet pipe at opposite ends of the housing and a grip portion of an area of the inlet nozzle. A flow valve is disposed in the housing between the inlet nozzle and the outlet pipe whereby the flow valve further comprises a valve rod. A control device is provided that comprises a pressure channel and a plunger-type control element, for closing the flow valve depending on a pressure present in the pressure channel, against a direction of fluid flow, whereby the control device is disposed in the housing between the inlet nozzle and the flow valve and whereby the pressure channel is connected to a port of the outlet pipe. A manual lever, disposed within the grip portion and connected with one end thereof to the control device, actuates the flow valve and controls a fluid flow from the inlet nozzle to the outlet pipe.

Abstract: A double diaphragm pump having diaphragms connected by a coupling rod and separating two diaphragm chambers, a control spool displaceable in dependence on the position of the diaphragms, with closure means for alternate freeing and closing control passages arranged in a control spool housing for alternate pressurizing and relieving of a driving medium chamber with driving medium, and an actuating member coupled with the diaphragm movement and magnetically with the control spool.

Abstract: This specification discloses an ink cartridge provided with a recording liquid containing portion containing recording liquid therein, a supply port for directing the recording liquid in the recording liquid containing portion therethrough to the outside, a vent path for communicating the recording liquid containing portion with the atmosphere, and an opening-closing member having a magnetic member for opening and closing the vent path. A liquid injection recording apparatus, includes a magnetic imparting member for imparting a magnetic force for operating the opening-closing member. The magnetic force is imparted to the opening-closing member through movement of a carriage to thereby effect opening-closing of the vent port.