Abstract: An improvement in a pressure regulator including the usual valve body, seat, poppet, adjustable spring having a bottom plate for co-acting with the low pressure diaphragm member. The improvement comprises an improved regulator in which the poppet includes a centering extension shaft extending to the low pressure side of the valve seat and a larger diameter shaft in communication with the high pressure inlet chamber and having the valve seat include centering upper protrusion that closely engages the centering extension shaft of the poppet with at least three and no more than six slots disposed substantially uniform thereabout such that gas can flow about the valve poppet centering extension shaft through the valves without inducing destructive and noisy vibration when gas flow is called for by the regulator.

Abstract: Opening and closing of a fluid flow path is controlled by a valve closure member which consists of both a sealing plate and a counter element and which is moved within its own plane to open and close the valve assembly by a crank rod. Spreading elements are arranged between the sealing plate and the counter element tending to urge these members apart and the crank rod mechanism includes a slide member which is arranged to move within a guide slot in the sealing plate and to also engage a circumferential edge of the counter element so that during closing movement of the sealing plate by engagement of the slide member in the guide slot, the slide member may also extend to engage the circumferential edge of the counter element to rotate the counter element relative to the sealing plate in order to place the spreading elements in position to apply a sealing force between the sealing plate and counter element.

Abstract: There is disclosed an apparatus for manually locking a pilot valve in an "in service" position independent of an actuating, or pilot fluid pressure. The apparatus may be either manually disengaged or will be automatically disengaged whenever the ambient temperature exceeds a predetermined level. The device includes a valve manipulating knob attached to the exterior end of a valving element for manually shifting the element from a normally closed position to the in service position. The knob includes an "L" shaped locking member which conforms to the contour of the knob, and is adapted to pivot towards the valve body and lock the valving element out in the "in service" position. This pivotal member includes an indicating surface visible from the front when the valving element is locked in an "in service" position. The locking member is comprised of a fusible material selected to yield at a predetermined temperature so as to return the valve to an operating mode responsive to the pilot fluid pressure.

Abstract: An improved flame snuffer 30 for utilization on the vent line 20 of oil field atmospheric condensate storage tanks 10 is disclosed utilizing a valve 200, a fusible link 70, and a counterweight 80 connected to the valve 200 so that when the fusible link 70 melts in the presence of fire the counterweight 80 is released to close the valve over the vent 20. A container 40 holds the valve 200 and directs the outlet 22 of the vent line 20 into a downward path 100. A rod 50 connected to one end of the valve 200 has the counterweight 80 connected to its opposing end and the fusible link 70 is connected to the rod 50 and to a rigid arm 80 so that in the presence of a fire, the fusible link 70 melts releasing the rod 50 from the arm 80. A manual override 110, 120 is further provided to separate the rod 50 from arm 80 when a predetermined force is exceeded.

Abstract: A movable tube controls the flow of fluid from supply through a regulator to discharge in response to pressure acting on a piston in a control chamber at discharge and opposed by a spring in a spring chamber. When the discharge pressure reaches a prescribed, regulated value, the tube no longer moves. The pressure drop through the regulator occurs at the outer diameter of the tube; consequently, no area of the tube sees supply side pressure that would tend to displace the tube. On the discharge side, the tube extends into a necked passage between a control chamber and an exit port to aspirate fluid from the control chamber and compensate for loss of spring force due to spring relaxation. The tube also closes when there is a sudden loss of discharge side pressure. The tube closes on the supply side against an elastomeric seat carried by a removable plug.

Abstract: A fire-damper has a support adapted to be secured in the duct and having a pair of pivots defining respective parallel and spaced-apart pivot axes traversing the duct. Respective damper flaps are pivotal on the pivots about the respective axes between an open position extending generally parallel to and spaced from each other in line with the duct and a closed position generally coplanar transverse to the duct. Thus the flaps define in the open position open flow spaces between and to both sides of the flaps and in the closed position the flaps substantially block flow through the duct. A spring urges the damper flaps continuously into the closed position. A fusible link is connected between the flaps offset from the axes for retaining the flaps in the open position unless the link is heated beyond a predetermined temperature. This link extends across the flow space formed between the two flaps.

Abstract: An elastomeric sleeve is inserted in the hole in the cock body which has multiple passages for the fluid. A plug, which may be positioned to connect selected passages, is placed within the sleeve in the hole. Either the contacting surfaces between the hole and sleeve or the rubbing surfaces between the sleeve and plug are tapered. A spring, seated on the base of the body or a plug flange, exerts upward pressure on the sleeve to assure tight contact between adjacent surfaces to eliminate fluid leaks.

Abstract: A novel valve mechanism is disclosed which eliminates the need for a conventional cap normally associated with prior art valve and valve stem assemblies for pneumatic tires. The valve stem embodies a core with an elastomeric member to prevent ingress and egress of a fluid through the valve stem. The elastomeric member can be a normally collapsed flexible tube or a resealable septa.

Abstract: A valve for controlling the flow of fluids, improved by utilizing a cartridge, containing a valve head and a valve seat, which is placed in a box-type valve body. The cartridge enables rapid exchange of the valve head and valve seat.Thus, the improved valve is particularly suitable for use in pipe lines of nuclear power plants, in which radioactive substances flow.

Abstract: A spool valve and seal having zero leakage includes a spool valve member having a hollow interior translatable within a bore in a valve body with inlet pressure connected through ports to the hollow interior of the spool valve member. A series of radial orifices axially displaced from the inlet ports communicate the interior with the exterior surface of said spool valve member, the outlets of said orifices terminating in chamfered edges. A seal is positioned adjacent the spool valve member in an annular groove formed in the surface of the bore within which the spool member is translated, the seal being positioned to prevent leakage between the inlet pressure passages and an outlet chamber in said valve body.

Abstract: In-line valve means for isolating a source of fluid under pressure from a desired using apparatus until use of the fluid is desired. The in-line valve means includes a positively sealed plug and an on-off isolation control valve which is positioned by appropriate electromagnetic means such as a torque motor or a solenoid. The plug has a frangible area which is sheared by forces generated by the electromagnetic force motor. After the plug is sheared it is positioned by appropriate means within the flow path to preclude substantial interference with the flow of fluid from the source through the control valve to the outlet. Subsequent repetitive on-off control of the fluid may be accomplished with a second seal and seat in series with the positive seal plug and actuated by the same electromagnetic means.

Abstract: A pressure sensitive device for shutting off flow through a valve is disced. The device includes a pressure sensor having an integral atmospheric pressure reference for releasing a plunger to shut off flow through the valve. A manually operated eccentric pin and slot arrangement is provided for resetting the plunger to the open position.

Abstract: A sluice valve arrangement is adapted to make an air-tight partition or communication between a vacuum treatment chamber and the atmosphere or a pre-chamber. This arrangement includes a valve seat member comprising a cylindrical or spherical member having therein an opening, a pair of guide rails attached to the inner circumference of the seat member, a valve member movably supported on the guide rails, and means for air-tight engagement of the valve member and the valve seat portion of the seat member. The valve member has a curvature equal to that of the cylindrical or spherical member, and the engagement means comprises a plurality of bellows expandable by a compressed gas or air.

Abstract: A safety pressure regulator employing a diaphragm actuator that upon exposure to high temperature an element melts to release the valve from the actuator to effect its automatic closing.

Abstract: In a power steering system, for a vehicle, including a reservoir, an engine-driven pump, a double-acting hydraulic piston-and-cylinder assembly and a steering-wheel-operated hydrostatic steering unit which can function as a manually-operated emergency steering pump, sufficient oil for emergency operation of the hydrostatic steering unit must be retained in the system if the connection between the outlet of the engine-driven pump and the inlet of the hydrostatic steering unit should fracture. The reservoir accordingly comprises an outer casing adapted to breath air at its upper end and having an outlet at its lower end adapted to communicate with the inlet of the engine-driven pump, and an inner casing having a port at its lower end adapted to communicate with a port of the hydrostatic steering unit and an oil outlet at its upper end communicating with the interior of the outer casing.

Abstract: The gate and swing valve has a body which defines at least one valve seat. A closure member inside the valve is pivotably mounted on a support. A cam and cam follower operatively couple the cam to the closure member. A stem has one end coupled to the cam for moving the closure member in a linear motion, in a swinging motion, and then in a linear motion toward the valve seat.

Abstract: A gas pressure reducing regulator having a valve assembly with a slidable valve member containing a valve seat disposed within a valve chamber communicating with the inlet opening connection to a source of high inlet pressure through serially connected passageways having intersecting axes with an included angle of less than ninety degrees. The valve assembly also has a frustoconical tapered head juxtaposed relative to the valve seat such that upon loss of valve seat material the nozzle nestles into the seat to close off the valve.

Abstract: A breakaway safety valve comprising interengageable plug and socket components having a fluid flow passage therethrough, and a plurality of breakaway members holding the plug and socket components in assembly. The breakaway members are adapted to break when the valve is subjected to a force of predetermined magnitude tending to pull the plug and socket components apart thereby to permit separation of the components without damage thereto. At the time of separation, a valve member in the flow passage automatically closes to cut off fluid flow through the passage.

Abstract: In a poppet-type relief valve, including a housing having a spring guide assembly axially biasing a valve toward a seat in its inlet passageway, a soft valve seat member is coaxially disposed in the inlet passageway. The soft seat member includes a rigid surface limiting movement of the spring urged valve toward the inlet passageway and further includes a resilient ring seal positioned adjacent the rigid surface in a manner to be cushion contacted by and form a bubble tight seal with the spring urged valve before the valve contacts the suface.

Abstract: A tire valve extension (10) which includes a relief valve element (24) to limit the inflation pressure of the tire. The extension has a tubular body with an annular recess (36) formed therein to define an outer tube section (14) and an inner tube section (16). A spring loaded valve actuating pin (18) is received within the inner tube section, and the relief valve element is received within the recess. Ports (32) formed in the body intersect a channel (38) formed in the recess to define a relief flow path.