Abstract: A flexible and backlash free coupling to connect adjustably between two separate rotary shafts for the purpose of transmitting rotary power and torque, whereby said coupling is able to slip on loosely over either of two separate stem configurations and whereby one end of said coupling will conform elastically to the one stem configuration while, in a second mode of elastic or plastic deformation, the opposite portion of the coupling attaches tightly to a second stem configuration within a certain range of dimensional width.

Abstract: A lamellate type low noise fluid resistance device comprising a stack of identical segmented ring-shaped plates having alternate sectional openings which, when circularly displaced with one another, form narrow horizontal fluid passages between the inner and outer diameters of said plates; said stack being bolted together with upper means to close the interior stack passage and lower flange means having a central opening and extending radially outward from the stack outer diameter.

Abstract: Two-piece rotary valve linkage loosely slidable arranged on a square shaft configuration and capable of tilting towards each other over a pre-arranged angular distance for the purpose of solidly engaging said square shaft and thereby being capable of transmitting significant tortional loads to said shaft without lost motion or displacement in the direction of the shaft axis.

Abstract: A regulating valve capable of precisely controlling minute amounts of gaseous or liquid fluids following an electronic, pneumatic or manual command wherein the fluid is throttled between parallel surfaces positioned in respect to each other through the use of hydraulic means.

Abstract: A regulating valve capable of precisely controlling minute amounts of gaseous or liquid fluids following an electronic, pneumatic or manual command wherein the fluid is throttled between parallel surfaces which are part of a replaceable trim insert and which are positioned in respect to each other through the use of hydraulic amplifying means.

Abstract: A rotary shut-off valve featuring an eccentric shaft mounted disk having a spherical periphery co-operating with a flexible metal seal, the latter forming a circle whose center is offset from and rotatingly mounted around the central valve axis to enable alignment with the central axis of said spherical disk periphery to effect tight shut-off.

Abstract: A regulating valve capable of precisely controlling minute amounts of gaseous or liquid fluids following an electronic, pneumatic or manual command wherein the fluid is throttled between a pair of flat, parallel plates positioned in respect to each other through the use of hydraulic means.

Abstract: A control valve, the internal wetted working parts of which are made of corrosion resistant material and which are completely enclosed by and easily removable from a steel or stainless steel pressure vessel, and which is capable of tight shut-off and which is able to offer accurate control of minute flowing quantities.

Abstract: Fluid flow controlling apparatus comprising a variable area, variable resistance, axial-flowing, perforated plate or ring stack and solid plug or ring throttling apparatus. In combination with a variable resistance throttling device, a fixed fluid resistance element comprising a stack of perforated plates or rings.

Abstract: Anticavitation and low noise means attached to the downstream port of rotary valves, having spherical or semispherical plug means, consisting of a plate having one plane terminating surface and one opposite concave spherical indentation closely engaging the spherical plug surface and containing within its circumferential boundary line a multitude of individual flow passages, each of which has a reduced diameter discharge port within the terminating plane surface of the plate.

Abstract: A fluid resistance device being part of a fluid system and having high resistance, fluid energy absorbing passages within the plane surfaces of equally shaped circular plates which overlap each other in a prearranged pattern, each plate consisting of equally spaced circular segments, one half of which have a number of small openings while the other half define a large opening allowing for communication in planar and perpendicular direction between said small passages in both the adjacent segments.

Abstract: A valve plug or valve seat combination having a large number of small fluid conducting passages in a multitude of horizontal planes and comprised of a stack of identical stampings having alternate sectional patterns consisting of a trapezoidenal vertical opening in some and slotted radial opening in other sections and which, when circularly displaced to one another, form internal vertical fluid conducting passages together with said horizontal fluid passages, both vertical and horizontal passages being interconnected.

Abstract: A control valve, suitable for modulating control of minute flow rates, comprising a cylindrical valve plug having a conical portion slidingly engaged in a cylindrical orifice sleeve, both terminating end portions of which are sealed within and against the inlet portion of a valve body; and wherein said orifice sleeve has one or more perpendicular passages cooperating with the conical portion of the plug to regulate the rate of discharge of fluid through the perpendicular passages as function of the axial displacement of the plug.

Abstract: A fluid resistance device being part of a fluid system and having high resistance, fluid energy absorbing passages along the interface between a ringtype member and a cylindrical male insert, and wherein said passages consist of a number of teeth-like baffles which are off-set from each other and which are separated from each other by circular grooves providing nearly rectangular throttling restrictions in series for the fluid passing generally along the longitudinal axis of the male insert.

Abstract: A variable resistance type control valve throttling trim having high resistance, fluid energy absorbing passages formed and controlled between the intersection of a cylindrical valve plug slidable co-operating with a cylindrical valve seatring and wherein the number, length, area ratio and specific fluid resistance are a function of the engaged length of the cylindrical plug portion in respect to the seatring bore and wherein the fluid energy absorbing passages consist of a pattern of slots and grooves radially inwardly penetrating the cylindrical wall of said valve plug and/or radially outwardly penetrating the cylindrical inside wall of said seatring bore.

Abstract: A butterfly valve disc with generally oval plane surface, tiltingly arranged so that the outer periphery forms a perfect circle intersecting with the inner bore of a butterfly valve, and where the outer rim of the disc further supports a row of ribs arranged generally parallel to the circular bore of said butterfly valve and pointing in opposite directions below and above the disc's horizontal axis and forming between themselves a number of flow passages, the trapezoidal cross-section of which gradually constricts the fluid towards its discharge side.

Abstract: A reciprocating sliding gate valve with tubular housing and one movable and one stationary gate having multiple fluid conducting ports, which overlap with solid wall partitions spaced between said ports when the valve is closed following sliding, reciprocating displacement of the movable gate, and wherein the interface between the stationary gate and the tubular body bore is sealed by the usual pipe line flange gasket; both gates and other internal parts being readily removable through one end of the tubular housing bore for ease of assembly.

Abstract: A rotary valve having a segmental sphere type rotary plug cooperating with sealing means and featuring a slide-in cage arrangement for ease of machining and assembly, and wherein said rotary plug is locked into said cage type insert by means of cylindrical guide bushings which can be removed only after the cage type insert is retracted from the valve housing.