Abstract: A one-piece flapper mount for a wireline retrievable hydraulic piston actuated wrap-around flapper safety valve. The flapper mount has opposing openings between the valve seat and the nose seal and the openings are sized for insertion of the flapper valve and nose seal with support ribs between the openings. The single piece construction allows setting and retrieving the safety valve in a single trip. The one-piece mount also has the advantage of ease of orientation of coacting parts.

Abstract: A household water faucet adapted for connection to the hot and cold lines of a domestic water system includes an electrical system controlled by pushbutton switches for selectively causing either hot, or cold, or a predetermined "warm" blend of hot and cold water to flow from the faucet, or stopping the flow by operating an "OFF" button. The faucet includes a cylindrical mixing valve supported for limited rotational movement within a bore in a main body to which hot and cold water is supplied. The mixing valve includes a pair of inlet ports oriented with respect to the hot and cold inlets to a main body such that in a first rotational position only cold water enters the mixing valve, in a second position only hot water enters the valve, in a third position both input ports are in partial registration with the hot and cold inlets to produce a mixture of hot and cold, and in a fourth position there is no registration of the inlets with the ports and the flow is turned off.

Abstract: The invention relates to bearing support of a throttle valve shaft in the housing of an exhaust gas line in which the shaft is rotatably supported on both sides in a bearing sleeve element constructed cup-shaped. The cups themselves are retained by spring force against the housing extending correspondingly conically within these areas. In order to keep small the actuating forces necessary for the rotation of the throttle valve shaft, each bearing sleeve element is retained by itself against the housing by means of a spring supported at the housing and the securing of the shaft against any axial displacement takes place by a separate axial bearing.

Abstract: A quick-action valve is opened and closed by a quarter turn. Safe closing with high mechanical advantage is provided, while the valve member is removed completely from the path of the flow upon valve opening. The valve member is fixed to a valve arm, mounted for rotation on a shaft. The valve includes an auxiliary shaft around which an actuating arm with a roller fixed to it are turnable. The roller moves the valve arm, or an auxiliary arm connected to it, so that upon closing it rolls substantially tangentially on a camming surface, thus bringing about maximum force transmission. A few degrees after the dead center position, rotation of the actuating arm is limited by a stop, and self-holding takes place in the closed position. In a preferred version the roller runs in the groove on the valve arm or auxiliary arm.

Abstract: For a shut-off device comprising a tubular housing to be built into a pipe and a rotary valve for which a driving shaft penetrating the housing and a seat in the housing are provided, a ring wheel (4) with movable bearings (9) being disposed on the driving shaft (10) and the valve flap (3) being guided in the ring wheel (4) and connected with the driving shaft by a gearing (22, 23) which locks when the valve flap (3) swivels in and serves to press the valve flap (3) onto its seat (32), the invention provides for the following: when the driving shaft (10) is rotated back, the gearing (22, 23) lifts the valve flap (3) axially off the seat (32) until the valve flap (3) is supported on the ring wheel (4), and the gearing (22, 23) constitutes the connection between the valve flap (3) and the driving shaft, the valve flap (3) being supported on the ring wheel (4).

Abstract: An oil or gas well flapper-type safety valve is joined in the tubing string and has a cylindrical valve body with a valve seat therein. A flapper valve is hingedly supported from the valve body for movement between a closed position wherein the valve is seated against the seat and an open position wherein the valve is pivoted from the seated position. A control link is attached to the flapper valve at a point removed from the hinge. Control structure is provided for applying a force to the valve through the control link to selectively pivot the valve between its closed and open position. The control structure includes an hydraulically operated piston moveable in a valve control cylinder. The piston is attached to one end of the control link and is biased by a compression spring toward the valve to seat the valve.

Abstract: A shutoff valve for use on sandblasting equipment wherein the valve provides a fail safe positive closure of air and sand pressure stream at the nozzle where the operator is. The sand and air pressure stream provides a positive force on the valve assisting the closure and maintaining a tight seal against air and sand infiltration to the nozzle.

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 active ridge vent designed for providing varying degrees of ventilation at the ridge of a building such as a livestock building. An arm in combination with a triangular member, a linkage, and a channel allow the opening created by two opposed doors which are hinged to the open peak of a gable roof to vary. The opening is designed to vary in accordance with the temperature level in the livestock building.

Abstract: An energy saving incrementally adjustable vent, for permitting the passage of air from one defined space to another which can be mounted on a vertical or horizontal surface includes a frame for mounting over an opening communicating therebetween. The frame has a central passageway disposed therethrough and a flap movably mounted to the frame, so as to be movable from a closed position substantially blocking the passageway, to an open position, permitting the flow of air therethrough. An adjustment device has a detent apparatus affixed to the frame. The adjustment device cooperates with the flap to provide a means for selectively adjusting the amount of air flow therethrough.

Abstract: A pressure relief valve operable in large transient pressure conditions includes a valve body. A valve seat is movably mounted on the body. A valve disc or pallet is pivotally connected to the valve body by a valve arm and aligned to engage the valve seat in a valve closed position. The valve disc is secured to the valve arm by fasteners and shock absorbers are mounted between the arm and the valve disc. A resilient shock absorber is mounted between the valve seat and the valve body to absorb shock resulting from engagement of the valve disc with the valve seat. Absorption of shock resulting from opening of the valve is accomplished by a shock absorber including a lever mounted on the valve body. At least one shock absorber is mounted on the lever aligned to be engaged by the valve disc upon opening. A second shock absorber may be included to engage the side of the conduit or housing within which the valve is mounted.

Abstract: A check valve particularly for use in large-volume applications includes a self-contained pressing unit which is mounted on a common pivot with the valve member in the outlet compartment of the valve housing and presses the valve member towards its closing position in which it sealingly contacts the valve seat. The pressing unit includes an elongated support member and an L-shaped pressing member which are mounted on a bearing sleeve for angular displacement relative to one another about the axis of the bearing sleeve. A buckling-type spring is mounted between a free end portion of the support element and the region of merger of the two legs of the L-shaped pressing member, the spring urging the pressing component away from the support component, and against the valve member upon installation on the pivot. The spring characteristic is such that the spring force initially rapidly increases, than drops precipitously and then remains substantially constant over a substantial range of deformation of the spring.

Abstract: A pressure regulator valve having a housing defining an inner chamber with at least one inlet port and one outlet port disposed in communication with the chamber is provided with a solenoid operated valve arrangement within the chamber for alternately moving two valve elements into and out of engagement with the inlet and outlet ports. The valve elements are mounted on a common elastic support member which is mounted for pivotal movement and each valve element is provided with a sealing surface which is inclined relative to the elastic support plate so that when a valve element is brought into engagement with the valve seat of a respective port, the sealing surface of the valve element will be disposed in flush parallel engagement with the valve seat.

Abstract: The invention is concerned with a blocking valve for liquids, which valve comprises a body (1), which forms a cylindrical valve housing (2) that is provided with flow openings (3), and a spindle (4) turnably mounted in the valve housing, the said spindle being turnable between a blocking position covering the flow opening in the valve housing and an open position liberating the flow opening, and the said spindle comprising a stationary body part (5) and a blocking part (6).

Abstract: An aspiration instrument for the aspiration of liquids in a surgical operation takes the form of an aspiration pipe. This aspiration pipe has a check valve, which may be opened by way of a lever, button or the like and by which the aspiration effect may be shut off when the lever or the like is let go of.

Abstract: A dual master cylinder (10) includes a pair of pistons (62, 106) moving in a bore (14) to contract a pair of pressure chambers (64, 108). A housing 12 defines a pair of inlets (26, 28) communicating liquid from a reservoir (18) into the pair of pressure chambers (64, 108). A pair of outlets (46, 48) communicate liquid from the pair of pressure chambers (64, 108) to a pair of brake systems (50, 52). A pair of tilt valves (34, 36) control liquid communication through the inlets (26, 28). The pair of pistons (62, 106) carry a pair of valve actuators (182, 210) which open and close the pair of tilt valves (34, 36) in response to movement of the pair of pistons (62, 106) within the housing (12). The pair of actuators (182, 210) cooperate with one another to simultaneously close the pair of tilt valves (34, 36) during a brake application.

Abstract: A nipple-type waterer having a resilient elastomeric plug which functions both as the spring and as the orifice member for regulating flow through the device. The elastomeric plug bears against the head of the valve stem and is threadably seated within the housing and adjustably positioned for varying the resilient closing force imposed on the valve stem. The usual O-ring creates the main seal between the housing and the outer side of the valve stem head. The elastomeric plug also has an annular sealing ridge thereon which creates a second area of sealed engagement with the rear side of the valve stem head.

Abstract: A valve intended primarily for use on the end of a supply hose for directing and controlling a high velocity stream of an abrasive granular material against an object. The valve has a handle with a usual discharge nozzle mounted on one end thereof, with the granular material supply hose being connected to the other end of the handle. A lever is pivotally mounted on the handle and is movable between open and closed positions with respect to the nozzle. The lever has a hand-actuated inner end portion and a nozzle sealing outer end portion. A spring is mounted on the lever and biases the lever toward closed position. A resilient sealing member is mounted on the outer end of the lever and forms a seal completely external of the nozzle against the open discharge end of the nozzle when the lever is in closed position. Magnets may be mounted on the handle and inner end of the lever and are mutually engageable when the lever is in open position to assist an operator in overcoming the biasing effect of the spring.

Abstract: In an electromagnetically operated valve unit, a moving-coil linear motor is associated with a flow regulating valve to linearly control the quantity of fluid flow in proportion to an input current applied thereto.

Abstract: A valve consisting of a rotating flapper type valve which covers an inlet d outlet opening in a missile base and being held open by the insertion of an inlet fitting of a supply duct into the valve for supplying conditioned air into a missile and the valve having spring means biasing it in the closed direction against the action of the supply duct and latch means which latches the flapper type valve in the closed position when said supply duct has been removed from the air inlet opening of the valve.

Abstract: A pump for injecting metered amounts of liquid into a line or a conduit, which includes a reciprocating pumping piston in a cylindrical chamber having an inlet and an outlet, both of which are controlled by check valves, wherein the pumping piston is driven by a pneumatic motor of the reciprocating type and having a cylinder in which is located a power piston that is suitably connected to the pumping piston. A switching valve assembly is provided for controlling a supply of power gas or air to the pneumatic motor and which responds to the movement of the pumping and power pistons for effecting reciprocal movement of the pistons.

Abstract: An articulated, spring-controlled intake valve, for use in controlling induction flow through an intake port of an induction passage in an internal combustion engine, includes a valve head and a separate valve stem connected together by a hinge member with one end thereof pivotally secured to the valve stem and its opposite end fixed to the valve head with one end of a flexure spring sandwiched therebetween, the opposite end of the flexure spring being secured by a clamp member to an internal wall defining a portion of the induction passage.

Abstract: A heating vent is disclosed in which a T-shaped housing of light weight sheet metal is inserted in the plastic vent hose of an electric clothes dryer to provide passages through which the dryer is vented either outdoors through the vent hose or indoors through a sock-like filter having its open end stretched over the lateral outlet of the housing according to whether a pivoted valve member in the housing is in its summer or winter position.

Abstract: Core barrel apparatus and a method for obtaining and retrieving sealed core samples of subterranean formations are disclosed. The core barrel apparatus comprises inner and outer core barrels. The upper portion of the outer core barrel is adapted to be connected to a drill string. A core bit for cutting a core sample is mounted on the lower portion of the outer core barrels. The inner core barrel comprises a sample chamber for receiving a core sample as it is formed at the bottom of a bore hole and an expansion chamber for receiving sample fluids. The sample chamber and expansion chamber are selectively connected to one another. The expansion chamber is sealed closed while the sample is being cut and received within the sample chamber. The lower portion of the sample chamber adjacent the core bit is sealed by a flap-valve which includes a flexible flap member.

Abstract: A slam-shut valve provides overpressure protection in a pipeline in the event of regulator failure. The slam-shut valve is normally held latched in the open position. Overpressure or failure of the regulator will automatically trigger operation of the slam-shut valve to close the same and prevent further passage of the gas through the pipeline. The slam-shut valve is manually reset to the open position once it has been triggered closed.The invention includes mounting the closing spring upon the lever in loaded position. The latch lever forms a subassembly, which in turn, is installed in the housing of the slam-shut valve to operatively interconnect the latch and release mechanisms and the reset mechanism. Subsequent to installing the lever, on end of the loaded closing spring is released from the lever to snap into position against the adjacent housing wall to bias the lever to the closed position. However, closing is normally prevented by the latch which releasably holds the lever in the open position.

Abstract: A safety valve for use in fuel dispensing systems including a vapor recovery system and having a valve body, first and second inlets in the body, first and second outlets in the body, first and second, separate, fluid flow passages in the body and extending between respective ones of the first and second inlets and outlets, two valve seats in the body, one in each of the passages, a shaft extending through and rotatable in the body adjacent the valve seats, first and second clapper valves in the body, one in each passage, each clapper valve having a limited lost motion connection to the shaft to be rotatable therewith, with limited lost motion, between positions seated against and spaced from the associated valve seat, a pair of springs, one for each valve, biasing the associated valve towards its associated seat, and a holding device for holding the shaft in a position of rotation within the body wherein the valves are spaced from their associated seats, and for sensing an unsafe condition in the vicinity of

Abstract: An infinitesimal gas flow regulator has a valve seat member having a valve seat provided at a gas inlet thereof, and a valve body including a hemispheric portion seated on the valve seat so that said valve body is rollingly movable about the center of the hemispheric portion while the valve body is kept on said valve seat. The valve body has an orifice in the form of a notch provided in the hemispheric portion of said valve body. An adjusting screw is provided to adjust the position of the valve body about the center of the hemispheric portion whereby a predetermined degree of opening is provided to the orifice in the valve body.

Abstract: An automatic water tender is disclosed which waters a plant in accordance with the amount of moisture which has evaporated or has been transpired from the plant. The apparatus comprises a support base upon which a horizontal pivot shaft is pivotally mounted. A cantilever platform is rigidly mounted to the pivot shaft and a counter weight is mounted to the pivot shaft opposite to the cantilever platform. A plant container is supported by the cantilever platform, which contains the plant to be watered. The plant container on the platform is counter-balanced about the pivot shaft by the counter weight. A fluid reservoir is mounted on the support base in an elevated position with respect to the plant container. A valve means is mounted on the fluid reservoir and is operatively connected to the pivot shaft, for controllably conducting fluid from the reservoir to the plant container in response to the pivotal motion which the pivot shaft undergoes when the counter weight overbalances the platform.

Abstract: The ventilator valve of the invention includes a housing incorporating a plate portion having an aperture forming at least part of a passage for air to flow through the housing. This plate portion forms a base adjacent to which a valve plate is rotatably mounted, in a plane substantially parallel thereto. A ring-like member is fixed to said base plate to dispose adjacent the outer periphery of the valve plate. This ring member embodies means defining a plurality of circularly spaced recesses in which a locking element on the valve plate may be selectively engaged. The engagement of the locking element in one of said circularly spaced recesses causes the valve plate to be in a valve-open position, in which position it is clear of at least a portion of the aperture in said plate portion of the housing.

Abstract: The invention relates to a valve mechanism for a liquid container, particularly a petrol tank of the kind in which an air-ventilating line between the tank and its filling pipe is closed during filling to build up an air pocket for limiting the filling level. The invention provides a simple construction in which the ventilating line opens into a recess formed in the wall of the filling pipe near to the filler cup. The opening is normally closed during filling by a seal carried by a spring retained in the recess, the spring having a part extending into the filling pipe such that, when fitted, an axial extension of the filler cap urges the spring, and hence the seal, to uncover the opening. In a preferred form, the recess extends transversely of the filling pipe and the spring is U-shaped and contained within the recess, that leg nearer the filler cap carrying the seal.

Abstract: The invention is a delayed release valve for a fire hydrant which permits the fireman to couple a fire hose with the valve in place to a fire hydrant, the valve being released subsequent to the coupling operation either by a timer which is set at the time the hose is attached, or by a radio-controlled servo mechanism so that the fireman who makes the hose attachment may proceed to the site of the fire and need not wait at the hydrant until on-site firemen are ready for water.

Abstract: A valve construction for use in duct work wherein a valve element extends obliquely across and in closing relation with a duct, pivot means mounting the valve element for swinging movement about a horizontal axis between its oblique closed position and an open position longitudinally of the duct, the pivot means being located relative to the valve element to urge closing of the latter and maintain the latter closed under fluid flow.

Abstract: Dampers operable by energization of an electrical circuit or by deenergization thereof to open or close, for control of smoke ventilation in case of a fire. The dampers are held closed, or open, either by a magnet or by a spring. The dampers may be used in ventilation systems of any other type.

Abstract: A heating vent is disclosed in which A T-shaped housing of light weight sheet metal is inserted in the plastic vent hose of an electric clothes dryer to provide passages through which the dryer is vented either outdoors through the vent hose or indoors through a sock-like filter having its open end stretched over the lateral outlet of the housing according to whether a pivoted valve member in the housing is in its summer or winter position.