Abstract: A pressure modulator valve device having adjacent modulator valves, each including a sleeve, a plunger slidably fitted in the sleeve and a cam, the cams being connected to each other by a connecting member, a single supporting member for operatively supporting each of the cams and which is in contact with each sleeve so as to cover a front surface of each modulator valve, and a spring for biasing each sleeve in the direction of the single supporting member.

Abstract: A pressure modulator valve device having adjacent modulator valves, each including a sleeve, a plunger slidably fitted in the sleeve and a cam, the cams being connected to each other by a connecting member, a single supporting member for operatively supporting each of the cams and which is in contact with each sleeve so as to cover a front surface of each modulator valve, and a spring for biasing each sleeve in the direction of the single supporting member.

Abstract: A gas stove (A) includes a combined pressure regulator and manual shut off valve (C) which has an inlet (46) connected with a source (B) of natural gas. The combined valve includes a pressure regulator (60) in fluid communication with the inlet through a regulating valve assembly (64, 66). The regulating valve assembly which controls the flow of gas to a regulator chamber (62) is controlled by a diaphragm (68) and a spring (70) to maintain the pressure in the chamber substantially constant. A first outlet (48) is connected by a passage (72) directly with the regulator chamber for supplying pressure regulated gas to a plurality of range burner control valves (20) and range burners (22). A poppet valve (80) having only two stable states, fully open and fully closed, is connected between the regulator chamber and a second outlet (50). A manually graspable lever (52) and a cam member (86) enable the state of the poppet valve to be controlled.

Abstract: Electric-powered, lever-amplified actuating means for valves and other devices which may be used to replace heretofore employed hydraulic jacks capable of transforming a small force traveling a great distance into a large force being motivated over a small distance, and where such amplifying ratios exceed 5 to 1; the mechanical amplifying means consisting of two upper ball bearings displaced radially down by a piston or diaphragm plate which in turn causes a cosinusoidal, small distance displacement of a lower pair of ball bearings; an electric motor turning a threaded spindle cooperating with a nut is made to move the piston or diaphragm plate.

Abstract: A drainage valve unit for use with a casing for collecting a drain includes a valve body adapated to be mounted on the casing and having a fluid passage and a chamber defined therein and communicating with each other, a valve member disposed in the fluid passage and movable axially of the fluid passage for opening and closing the fluid passage, and a pusher body disposed in the chamber and movable axially of the chamber, the pusher body being displaceable from outside of the valve body for causing the valve body to open the fluid passage to discharge the drain from the casing through the fluid passage. The valve member can reliably be moved to open the fluid passage for discharging the drain by pushing the pusher body irrespective of the pressure within the casing. When the fluid passage is opened, the drain can quickly be discharged without falling on the operator's hand and fingers.

Abstract: A bonnet is mounted on an insert support and connected to a valve body to retain a diaphragm in fluid sealing relationship between the body and insert support. The insert support is rotatable relative to the housing of a fluid actuator while being retained in a fixed axial position relative to the housing. A plunger is extended through the insert support to abut against a button that abuts against one side of the diaphragm, the opposite side of which abuts against a valve seat subassembly that is resiliently urged to a valve open condition. The housing mounts a spindle which in turn has an eccentric lobe keyed thereto for moving the plunger toward the diaphragm so that the button flexes the diaphragm to move the seat subassembly to its valve closed position. Piston operated rack mechanism controls the rotation of the lobe for moving the plunger toward the diaphragm. Spring mechanism moves the piston in one direction while fluid under pressure applied to the actuator moves the piston in the opposite direction.

Abstract: A poppet valve assembly and method of making same are provided and such assembly comprises a housing; a flow passage in the housing with the passage having a central axis and being adapted to flow a fluid in either direction therethrough; a poppet structure for controlling flow through the passage; a support structure for supporting the poppet structure during movement thereof along the axes; an actuator contact on the poppet structure between its head and stem to enable movement of the poppet structure along the axes; and apparatus for engaging the contact to provide the movement wherein the support structure comprises a cylindrical inside surface provided on the housing and having an axial length generally of the order of several times the particular diameter, and the support structure also comprises a cylindrical outside surface on the stem which slideably engages the inside surface, with the inside and outside surfaces cooperating and defining sole means confining the poppet structure against movements tr

Abstract: A cam-actuated valve is provided which includes a valve chamber having a poppet valve therein. A diaphragm separates the exterior of the valve body from fluid contained within the valve chamber. An actuator sleeve is positioned on the body for rotational and longitudinal motion. The vlave sleeve is spring-biased into a closed or "off" position by moving the actuator sleeve against the biased spring and rotating the spring about thirty degrees. The valve is moved to the "open" position. A cam forces a ball to move in a radial direction so as to open the poppet of the valve and thereby allow fluid to flow from an inlet to an outlet through the valve assembly. Locking means are provided whereby the valve is locked in the closed position.

Abstract: A throttle valve assembly for displacing the plungers of at least two contiguous throttle valves in correspondence with the degree of throttle opening of an engine includes a first cam rotatably mounted on a stationary bracket fixed to the throttle valve bodies and having a cam face for displacing the plunger of the first throttle valve and an axially extending boss, a second cam rotatably mounted on the bracket and having a cam face for displacing the plunger of the second throttle valve and an axially extending boss, the first and second cams being coupled via coupling means formed on the opposing bosses, and a cable operatively associated with the engine torque demand for rotating the cams. The cam faces of the cams are formed to have a shape capable of providing the desired throttle pressure characteristic, the shapes of the cam faces differing from each other in order to obtain the optimum speed-change performance.

Abstract: A flow control device for controlling the flow rate of fluid utilizes a stepping motor. A translating mechanism translates the rotation of the stepping motor into a rectilinear movement which causes a valve to move in either forward or backward direction, thereby controlling a clearance formed between the valve and its associated valve seat. A channel area is controlled in this manner, and a flow control over an extensive range from a minimal to maximal flow is achieved with a high accuracy and improved response.

Abstract: A fuel control valve construction, parts therefor and methods of making the same are provided, the construction having a housing provided with an inlet adapted to be interconnected to a fuel source and an outlet adapted to be interconnected to a burner. The housing has a main pressure regulator and a main valve operated by the main pressure regulator for controlling fuel flow from the inlet to the outlet to provide a full rated flow of fuel to the burner. The housing has a by-pass for interconnecting the inlet to the outlet to provide a fuel flow to the burner that is less than a full rated flow of fuel but is sufficient by itself to support combustion at the burner until the main valve provides the full rated flow of fuel thereto. The housing has a by-pass pressure regulator for controlling the flow of fuel through the by-pass independently of the operation of the main pressure regulator.

Abstract: An in-line accessory faucet having a separable plastic air-gap module for use with a reverse osmosis unit, the faucet being installable without the module when used without a reverse osmosis unit. The air-gap module slides onto the faucet pipe conduit below the housing, and has brine flow passages and a channel formed in the top surface and closed off by the overlying flat surface of a base member between the housing and air-gap module. A valve seat in the housing connects to both the housing and the pipe conduit. The valving in the housing has an in-line configuration, with the faucet inlet and outlet being on a common central axis. A mounting nut with an expandable - collapsible portion and peripheral side channels for brine tubes permits mounting of the faucet solely from above the sink lip. A handle with two lower camming surfaces is operated only downwardly to obtain both pressure - controlled flow or locked-on flow.

Abstract: The improved positive pullback synchro valve actuator of the present invention comprises a universal cam assembly having a frame supporting a deformable cam strip which is operatively connected to a plurality of contour adjustment screws and which may be adjusted to form the desired shape of the cam. The cam strip is further operatively connected to a plunger which is disposed for movement transversely of the cam strip and in the longitudinal direction. The apparatus is positive in its pullback, as the plunger is linked to the universal cam assembly, such that when the operator turns the universal cam assembly, there is assurance that the associated valve is closed. In some applications, the plunger may be connected to a shaft yoke which is disposed transversely of the plunger for converting the longitudinal movement into limited reciprocal rotational movement. In these embodiments, the shaft yoke engages a valve shaft which is urged by such yoke into limited reciprocal rotational movement.

Abstract: A constant airflow control apparatus is connected to an air duct of an air conditioning system to keep the flow rate of air fed from the air duct constant. The apparatus comprises a rectangular pressure receiving plate slidably mounted on a guide shaft extending in one direction inside a passage of a housing. The plate extends substantially at right angles to the central axis of the housing so as to block part of the cross section of the passage. The apparatus further comprises a coil spring for urging the plate against the flow of the air, and two swinging plates swingably attached to two opposite side edges of the pressure receiving plate, individually. The swinging plates are adapted to change the cross-section area of an air passage defined between the swinging plates and the inner surface of the housing in a mode represented by a quadratic curve in accordance with a rectilinear change of the pressure of the air.

Abstract: A rotating gate valve for access to vacuum chambers, and the like, employs a rotating gate member which is alternatively aligned to cover or to uncover a slot in a concentric valve body, the ends of which are sealed and serve as supports for a shaft. Eccentric lobes on the shaft engage corresponding cam surfaces on a gate member causing it to be urged into high force contact with the body when sealing of the chamber is desired.

Abstract: A valve assembly for a dispensing head with a conventional gooseneck type dispensing spout for filling carafes and the like type containers has a single bore in the center line of the dispensing head for mounting the dispensing spout and operating elements of a valve for controlling the flow of the fluid being dispensed to the inlet or lower end of the dispensing spout, the lower end of the dispensing spout forms the valve head for the valve maintained normally closed, and manual actuating device is provided to lift the dispensing spout so as to move the valve to open position.

Abstract: A dual hand control actuation mechanism for a manually actuated device has a pair of opposed actuating rods that have wedge shaped ends defining forward and rearward camming surfaces to interact with forward and rearward cam surfaces on a cam member positioned between the actuating rods. If both of the actuating rods are pushed simultaneously, their forward cam surfaces engage the rearward cam surfaces of the cam member and move the cam member to cause it to engage a switch to actuate the device. If one of the actuating rods is pushed before the other, its forward camming surface engages the rearward camming surface on the cam member and pivots the cam member preventing the other actuating member from engaging the cam member in a manner that will move the cam member against the switch, thereby preventing actuation of the device.

Abstract: In a system for leak detection having many valves, it is desirable to have high vacuum valves operated by solenoids at opposite ends of a diffusion pump in order to isolate the diffusion pump during powr failure or during an intentional shutdown. A valve having a hard spherical ball fitting a vacuum seal and having a spring means to bias the ball in a closed position will close during a power failure. A bell-shaped actuator connected to a solenoid can be used to open the valve with built-in mechanical advantage. A circuit means can be used to supply high starting voltage to the solenoid and then lower voltage to hold the valve open.

Abstract: Mechanical amplifying means for valves and other devices which may be used to replace heretofore employed hydraulic jacks capable of transforming a small force traveling a great distance into a large force being motivated over a small distance, and where such amplifying ratios exceed 30 to 1; the mechanical amplifying means consisting of two upper ball bearings wedged tangentially apart by a profiled pushrod which in turn causes a co-sinusoidal, small-distance displacement of a lower pair of ball bearings.

Abstract: A shut-off valve for a sprayer which includes an O-ring seal circumscribing the valve stem and serving the dual function of a packing seal between the stem and valve housing at all times as well as preventing fluid flow through the valve when the stem is in its closed position.

Abstract: A liquid level control including a housing for attachment to an opening in a vessel, the housing having an inner chamber with a float extending therefrom, the float responding to changes in liquid level within the vessel, and an outer chamber including a valve for opening and closing an air flow passageway to provide a pneumatic signal in response to the liquid level changes. The housing has a rotatable shaft extending through the wall separating the inner and outer chambers. The valve includes an elastomeric seat which is easily accessable for inspection and is easy to replace.

Abstract: A manually operable valve apparatus capable of temporary attachment at one end directly to a refrigeration apparatus which is to be charged with a pressurized refrigerant, such as from a portable source of refrigerant, the present valve apparatus can be attached at its opposite end to a hose or the like to communicate with a pressurized source of refrigerant. The valve comprises an internal spring-loaded valving element having pins at each end which each contact a needle element at opposite ends of said valving element. One of the needle elements is directly biased by a cam twisted by finger manipulation against one of the pins of the valving element to displace against spring pressure the other pin, thereby displacing the other needle element to allow pressurized refrigerant to flow from the refrigerant source through the valve apparatus.

Abstract: The invention generally relates to high-pressure valves of the type having a valve passage of relatively small width, for instance in the order of 10 mm or less, and a movable valve element for opening and closing said passage. More particularly, the invention relates to an operating mechanism for moving the valve element between its open and closed position.

Abstract: A drain discharging apparatus capable of automatically discharging drain in compressed air, comprises a body formed therein with a drain reservoir chamber for receiving the drain and compressed air and with an inlet port and an outlet port both communicated with the drain reservoir chamber. A pair of poppet valves selectively communicate the drain reservoir chamber with the inlet port or the outlet port. A cam rotatable within the reservoir chamber alternately opens the poppet valves. A motor rotates the cam, which also is manually operable.

Abstract: A handle mounted adjacent one end of a centrally bored body when squeezed toward the body turns a stem through about 22.degree.. The interior of the stem is cut away so that all that remains is a 90.degree. sector which functions as a cam. On the opposite end of the body is an inlet port. A reciprocable actuator has a seat at one end which is biased to close the inlet port. The opposite end of the actuator engages the cam. Vanes on the actuator center the actuator relative to the bore of the body and permit fluid to pass from the port past the stem when the handle is depressed. When the handle is up, the cam is positioned so that the end of the actuator moves forward by spring and water pressure force to close the valve. When the handle is depressed, the cam turns to force the stem back to unseat the valve and because the stem is cut away for approximately 270.degree., fluid flows around the stem and out of the discharge port.

Abstract: A control valve with a three part, all plastic housing having an access opening through which a slide extends for operating the plastic valve element toward and away from the valve seat, the plastic valve element having an integrally molded plastic diaphragm clamped between parts of the all plastic housing and traversing the entire access opening, the slide being operated by a rotor, there being ramp shaped surfaces on confronting faces of the rotor and slide, and an adjustment nut for locating the rotor, slide and valve element relative to the valve seat.

Abstract: The present invention relates to an apparatus for accurately controlling the distribution of pressure fluid through a number of branch conduits, the apparatus being advantageously employed for jet looms. The apparatus eliminates excessive wear of mutually engaged parts which would otherwise cause unwanted time delays in the operative steps of the system with which it is employed. The apparatus includes a plurality of valves, each valve having a movable valve element coupled with the outer race of an anti-friction bearing mounted on an eccentric by means of a piston and a push rod provided with a spring which maintains the piston in engagement with the outer race. The valve is opened when a stop on the piston is moved by the eccentrics into engagement with the other end of a push rod which forms a part of the movable valve element.

Abstract: A fluid pressure and electrical signal controller for providing a predetermined regulated vacuum signal from a variable source in response to changes in position of a rotatable input shaft when attached thereto and an electrical signal at a predetermined position of the input shaft. A pressure force balance type vacuum modulator valve is preloaded and biased by a spring connected to a cam follower which tracks a rotary cam turned by the input shaft. The modulator valve is slidably attached to the controller body for adjusting the preload length of the spring and a rotatable adjustment ring engages the valve and is threadedly received on the controller body for effecting sliding adjustment of the valve position on the controller body.

Abstract: A unitary hydraulic control device, especially for use with mining apparatus, has a main housing carrying replaceable individual valves arranged in bores. The valves are operated by tappets which engage on cams provided on one of three relatively rotatable coaxial parts forming a multi-part cam shaft. The rotatable parts have hand levers external to the housing permitting the parts to be partly-rotated in either direction, together or separately, to operate selected groups of valves. Each rotatable part has its own "dead man's" handle safety or restoring system which automatically return the rotatable part to a neutral position upon release of its hand lever and after part-rotation in either direction. Each such system is composed of a pair of spring-loaded plungers guided in casings fitted in the housing and engaging on diametrically-opposed cam surfaces of an additional cam on the associated rotatable cam shaft part.

Abstract: A frictional control for a single lever faucet construction wherein a compensating cam follower member is made from a material having a higher coefficient of friction than that used for two cam followers which actuate valve members effecting mixing of hot and cold water. All of the cam followers are under the control of a single ball cam member. The cam followers which actuate the valve members have convex surfaces to establish substantially point contact with the ball cam member while the compensating cam follower has a concave surface to engage a substantially larger, and preferably spherical, area of the ball cam member.

Abstract: A main body has a partition wall provided in the interior of the main body and a communication hole formed in the wall. A valve body is disposed in the main body to be movable between a first position and a second position. At the first position the valve body closes the hole, and at the second position the valve body opens the hole. A spring urges the valve body into the second position. An operating lever is connected in a universal-joint fashion to the main body. A cam is formed on the lever and slidably contact with a cam contact element disposed on the valve body in a position away from a plane including a center axis of the main body. A pair of grooves are formed on the lever at each side of the cam and extend along the plane. A pair of projections are provided on the valve body and inserted into the grooves. When the lever is rotated in one or the other direction in the plane by an external force, the valve body is moved between the first and the second position by the action of the cam.

Abstract: An operting handle assembly for actuating a valve or the like including an adjustable actuating cam member that controls the degree of deflection of the valve to obtain different output pressures for a given handle position, for example, and an adjustable friction brake mechanism that sets the desired tension for handle operation.

Abstract: Disclosed herein is an engine throttle control for marine propulsion devices and the like, which control includes a main control lever mounted for movement between a neutral or idle position and a full throttle position, a throttle lever adapted to actuate the engine throttle in response to rotational movement of the throttle lever, an actuation member operably connected to the control lever and mounted for movement in response to movement of the control lever, and means connecting the throttle lever to the actuation member for rotating the throttle lever in response to the movement of the actuation member and for effecting gradually increasing rotational movement of the throttle lever relative to incremental movement of the actuation member during at least a portion of control lever movement from the idle position toward the full throttle position.

Abstract: For use in gas meters and the like, an improved sliding valve assembly constructed so as to be capable of self restoring the relative sliding motion between a sliding valve and its valve seat when a viscous foreign material tending to accumulate on the valving surfaces inhibits the normal motion of the valve, and thereby insuring a more accurate and reliable metering of a fluid material.

Abstract: A hydraulic distribution manifold used to effect coupling of various hydraulic circuits and which includes at least one slidable valve spool whose movement is controlled by means of a crank mechanism operatively connected to a cam supported within the manifold and having at least two working surfaces for controlling movement of associated linkage.

Abstract: A high capacity direct acting three-way bistable power operated valve is connected to control operation of an hydraulically operated magazine sprinkler control valve. The three-way bistable valve controls application of high pressure sea water and includes a slidable hollow valve spool having one end that is selectively seated upon and sealed against a valve seat in an inlet chamber, and having an intermediate spool portion connected to a common valve port. The other end of the hollow spool extends into an outlet chamber and is sealed against a valve seat therein when the first end of the spool is displaced from its valve seat and vice versa. Input pressure on the spool can be completely balanced or arranged to enhance sealing of the spool. The valve spool is axially shifted and latched either by a motor operated cam circuit arrangement or by driving and unlatching solenoids.

Abstract: Metering valves in diesel engine fuel injection systems are disclosed. The systems each include a high pressure fuel pump, a fuel distributor, at least one metering valve, and fuel injector nozzles. In the preferred embodiment, the valves are of a type having a spool or valving member which moves axially in a bore from a second position to a first position and while so moving an annular groove, defined in the circumferential surface of the spool, traverses a valve outlet passage at velocities independent of engine speed for metering fuel to the engine during the traversing time. The spool may be moved from the second position to the first position by a spring or a solenoid and in the reverse direction by a stepped cam, a spring, or a solenoid. The distributor blocks fuel metering to the engine during reverse movement of the spool.

Abstract: Disclosed is a metering valve for a diesel engine fuel injection system. Two injection systems are shown which embody the valve. The valve includes a spool which is moved in one direction by a stepped cam and is moved in the other direction by a spring. The cam moves the spool at a velocity proportional to engine speed. The spring moves the spool at a velocity proportional to the spring force and independent of engine speed. A mechanical fuel distributor prevents fuel metering by the spool when the cam is moving the spool and allows fuel metering when the spring is moving the spool.

Abstract: A reversing valve for use in air conditioning systems and the like for controlling the flow of fluid between a plurality of ports, the valve including a valve body with a chamber communicating with each of the ports, and a valve member mounted in the chamber for movement between two positions to control the flow. Means for moving the valve member are located to one side and generally centrally of the valve member, and include a reciprocable operating plunger engaging a grooved ramp in the valve member which forms a cam. A spring is provided at one end of the valve member to urge the valve member to one position as the plunger is retracted.

Abstract: A viscous fluid clutch including a clutch plate member rotatably mounted in the clutch housing, and serving as a rotatable wall dividing the chamber within the housing into an annular working chamber adjacent one face thereof and an annular reservoir chamber adjacent the other face thereof, with inlet and outlet ports formed in the clutch plate and a radially extending, resilient, flexible valve member mounted on the reservoir chamber face thereof for controlling the flow of fluid medium from the reservoir chamber to the working chamber through the inlet port, in response to the action of a temperature-responsive power unit mounted on the housing.

Abstract: A valve operator for steam turbine inlet control valves, each of the control valves being set by a corresponding valve cam. The operator comprises pilot operated hydraulic means for positioning the valve cams in a normal or power mode of operation, mechanical means for positioning the valve cams in a back-up or manual mode of operation and manual actuation means for actuating the hydraulic means in a normal mode of operation and, in the event of failure of the hydraulic means, for automatically actuating the mechanical means in a back-up mode of operation. The hydraulic actuator positions the valve cams through a rack and pinion assembly. Both the hydraulic means and the mechanical means are actuated from an input shaft driving a reduction gear box. The mechanical means comprises a dog connected to the output of the gear box and a pin on the cam shaft driven by the dog in the manual mode of operation.

Abstract: A valve assembly for a pilot fuel injection system, which system also includes a transfer pump, a high pressure fuel pump, and a fuel injection nozzle. The valve assembly includes a blocking valve and a metering valve in an unitary housing having a high pressure fuel inlet, a metered fuel outlet, and a fuel return outlet. The blocking valve includes a cam ring operating a spool type valving member which opens and closes the high pressure inlet to the metering valve in a timed phase relation with an engine. The metering valve includes a cam ring, a spool type valving member, a spring, and a dump means. The cam ring has a single lobe which smoothly increases on one side and abruptly decreases in two steps on the other side; the smooth side slides the spool in one direction at velocities proportional to engine speed while the inlet is closed by the blocking valve; and the spring moves the spool along a two stepped path at velocities independent of engine speed while the inlet is open.

Abstract: A blood pressure measuring device with a quick-evacuation air valve, where the cone-shaped valve plunger has a bypass channel reaching from the pressureless side to a point on the sealing surface of the plunger which, at the maximum normal opening stroke of the latter remains within the throttling range of the valve, but which after an additional opening motion against an abruptly higher spring bias, is opened to the pressure side, thereby rapidly evacuating the device. A detent serves to hold the actuating lever of the valve in its quick-evacuation position.

Abstract: A fuel control device having a passage therethrough for interconnecting a fuel source with a main burner and having a poppet valve arrangement that is directly manually operated for opening and closing the passage so as to control the flow of fuel from the source to the main burner, the poppet valve arrangement having a poppet valve member that is moved relative to its valve seat upon the manual manipulation of a selector of the control device. The poppet valve member can work with the pressure of the fuel from the source thereof when the poppet valve member is being moved to its closed position.

Abstract: A spring biased poppet valve has the exposed end of its poppet plunger engaging the underside of a lever, and the poppet and lever are biased upwardly so that a tit on the upperside of the lever engages a cam surface defined on a cam member loosely mounted on a generally horizontal rock shaft. The shaft can be moved through an angular range of displacements as part of a normal control system, which system receives fluid operating pressure through the open poppet valve. An adjustable stop screw mounted to the shaft is so oriented that the cam member is positively moved about the axis of the shaft when the shaft has reached a predetermined angular displacement, whereby further movement of the shaft permits the spring loaded poppet valve to close.