Abstract: A compact spray gun using a single air supply port to actuate two piston valves and act as an air refinement system. An externally adjustable cartridge type packaging assembly needle piston valve seals the resin. A spool valve portion of a catalyst piston valve having O-ring seals is separable external from the piston portion. Leak detection ports are provided so the operator can easily determine when to adjustment or replacement of the packing or O-ring seals. The catalyst piston valve controls the mixing of the catalyst and air from a second air supply port. In a preferred embodiment, the resin piston valve controls a valve which provide air to the chopper system simultaneously with spraying of the resin.

Abstract: A cover for a single lever faucet having a body with a spout extending therefrom and a control handle for controlling the amount and mixture of water flowing out of the spout. The faucet includes a threaded opening extending into the body and through an unthreaded opening of the control handle. The cover includes a decorative cap having a threaded pin extending therefrom and adapted to be threaded into the threaded opening of the body. The cap includes a lateral opening therein for permitting receipt of a tool for tightening and removing the cap on the faucet. The cap is essentially non-removable by ordinary hand manipulation.

Abstract: A mud saver valve for insertion within the drill string to retain mud in the drill pipe and prevent the mud column from flowing past the valve when pumping is interrupted. The valve body has a tubular body and a piston having an axial passage for the flow of drilling mud. This piston is biased within the body by a spring and axially movable in response to the mud flow. A check valve plug is disposed within the bore which may be removed to run wireline tools. The plug is seated within a reduced diameter portion of the body and includes a replaceable inner sleeve which engages the piston to prevent flow through the valve. The inner sleeve is replaced as it becomes worn due to the erosive forces of the drilling mud.

Abstract: A mud saver valve for insertion within the drill string to retain mud in the drill pipe preventing the mud column from flowing past the valve when pumping is interrupted. The mud saver valve includes an internal check valve which permits increased flow of mud upward through the valve when a predetermined downhole pressure is reached. The increased flow of the check valve prevents a blow-out of the plug spear in the event sudden upward pressure is encountered. The check valve forms a part of the plug spear which is removable from the mud saver valve to facilitate the running of wireline tools.

Abstract: A valve seat member (18) presenting a valve seat surface (20) at one end against which an associated valve (16) seals. A valve stem guide (36) is supported in a central flow passage (34) of the valve seat member (18) by two diametrically opposed arms (38). An annular abutment surface (44) extends radially into the flow passage (34) and is spaced axially below the valve seat surface (20) and above the arms (38) for providing a ledge with which a removal tool (42) engages to extract the valve seat member (18) from a slush pump deck (12). The associated valve (16) includes a valve body (72) having a shape defined by a segment of a sphere centered at the apex (70) of a cone (68) which simultaneously defines the shape of a peripheral sealing face (74) of the valve body (72) and the shape of the valve seat surface (20).

Abstract: A quarter-turn valve comprises a housing formed with a cylindrical socket, and a cylindrical plug receivable within the socket and having a bore extending diametrically through the plug for establishing communication between the inlet and outlet nipples in the open position of the plug, but terminating the communication when the plug is turned to its closed position one-quarter turn from the open position. The plug is formed with a finger-piece projecting from the housing for manually rotating the plug to its open, closed or an intermediate position. The plug is closed at its bottom, such that the fluid flowing through the bore subjects the plug to a fluid pressure which is balanced on all sides of the plug, thereby facilitating turning of the plug and preventing its accidental ejection when subjected to a high pressure.

Abstract: Apparatus by which a check valve assembly of a reciprocating pump can be removed. A valve stem of the valve assembly is received within a valve guide which is mounted in a valve guide bracket. The bracket is pivotally attached to a yoke. The yoke is removably fastened to an adaptor. The adaptor is seated in an access port arranged perpendicular respective to the passageway within which the valve seat is mounted. The compressive force of the valve spring maintains the bracket and yoke in assembled configuration respective to the adaptor. The bracket and yoke can be pivoted apart, against the spring force, and removed through the adaptor and then the adaptor can be removed from the access port, thereby gaining access to the remainder of the valve assembly.

Abstract: A swing check valve for use between flanges wherein the valve seat and cage for the valve disc extend from the upstream to the downstream ends of the valve body. Cooperating shoulders are provided in the valve body and the member forming the seat and cage to prevent upstream movement of these members in the valve body, and downstream movement is prevented by plate-like members fitting in recesses in the cage portion and the valve body bore.

Abstract: A drain plug for draining oil from vehicle oil pans including a body having a threaded stem for permanently attaching the body to the pan threaded drain hole, a valve threaded into the body includes a conical seal surface seating against a conical valve seat within the body bore. The valve includes an axial bore having inlet ports receiving the pan oil upon the valve seat disengaging from the body seat wherein draining of the oil can be accomplished by rotating the valve relative to the body without removal of the valve from the body. Torque transmitting wrench flats defined on the body and valve are sufficiently spaced apart to prevent simultaneous accidental loosening of the body in the pan drain hole.

Abstract: A homogenizer comprises a homogenizing valve mounted to a pump block. Sets of three suction valves and discharge valves are positioned in valve bores in opposite faces of the block. Each of the valve bores has a hemispherical termination. The hemispherical termination of a pump chamber is formed in an adjacent surface of the block and is in communication with the valve bores through oblique conduits. The pump cylinder is formed in a packing box mounted in the block by bolts extending through the block. Integral valve assemblies removable as units are positioned in the valve bores. A pressure sensor is coupled to a discharge manifold through an isolating piston.

Abstract: Selective retraction of a spring-biased valve seat from slidable sealing engagement with a ball valve member is effected by a threaded retraction tool inserted through a threaded retraction port normally sealed by a removable sealing screw and gasket. The tapered distal end of the tool contacts a radially outward-facing and convex camming surface of the valve seat that tapers toward the forward/sealing end of the seat. Rotation of the tool in a direction to increase insertion causes the distal end of the tool to slide along the camming surface while forcing the valve seat away from the valve ball in opposition to the resilient bias sealing force. The taper in the camming surface may be provided as a smooth generally parabolodial configuration or as discrete surface segments subtending different respective cam angles with a reference plane oriented perpendicular to the direction of the spring bias force.

Abstract: A replaceable discharge valve assembly for a high pressure reciprocating plunger pump including a generally tubular valve seat member having respective cylindrical portions insertable in cooperating valve chamber portions formed in the pump cylinder block. The seat member receives a reciprocating valve closure member having a plurality of radially projecting guide ribs and a closure member disc portion. The seat member and closure member are retained in the cylinder block valve chamber by a cover member which is threaded and includes a cylindrical portion of a third diameter engageable with the valve seat member for holding the valve seat member in the valve chamber.

Abstract: Apparatus for handling gaseous streams comprising modular flow block means, including a plurality of gas flow paths extending through said modular flow block means so as to provide a plurality of port members on respective surfaces of said modular flow block means, a plurality of valve passages extending into said modular flow block means so as to intercept said gas flow paths at predetermined locations throughout said modular flow block means, each of said plurality of valve passages including an entrance aperture on a respective surface of said modular flow block means, a plurality of valve flange members, each of said valve flange members being adapted to mount a high vacuum valve on said modular flow block means at one of said entrance apertures without the need to apply rotational force to said valve flange members, so as to removably, hermetically seal said high vacuum valve onto said modular flow block means, and each of said plurality of port members including port member mounting means whereby condui

Abstract: A safety valve and method is disclosed having a housing in which a rotatable valve is disposed between upper and lower passages and lateral outlets. The ball has a removable insert such that in one position of the ball, the insert can be removed to provide full bore access in line with the wall. The housing may be incorporated with the tubing head or may be attached to the top of the tubing head. During insertion of or workover of tubing, a blowout preventer may be attached to the top of the valve housing. The ball may be rotated for closing off the flow path from the well below. A Christmas tree may be installed after the blowout preventer is removed. Diverter valves may be connected to the lateral outlets. "T" shaped passages in the ball insert may be aligned with the lateral outlets and the tubing to divert well fluid when desired via the diverter valves. The valve may be used as a master valve of a Christmas tree with a control valve attached to the lateral outlet.

Abstract: A shut-off valve assembly includes a housing which has a spherical plug arranged in a chamber. The housing has an internal thread into which a support element for a sealing member is screwed. On the outer end face of the support element is supported a flange bushing by means of a retaining nut. The pitches of the internal thread and of an external thread for the retaining nut are directed in opposite directions, so that the support element cannot be loosened when the retaining nut is unscrewed.

Abstract: An in-line repairable top entry floating ball valve having internal components that are replaceable through an access opening, closed by a valve bonnet, while the valve body is located within a flow line. The valve mechanism is provided with seats which may be of resilient nature and are sealed with respect to the spherical plug member by means of ball/seat spaces having interference sealing engagement between the plug and seats. The ball/seat spacers form sealing surfaces at one axial end for sealing engagement with the spherical plug member and sealing surfaces at the opposite axial end for sealing engagement with the seats and in spherically concentric relation with the plug to thus permit installation and removal of the ball/seat spacers in an arcuate motion about the spherical surface of the plug.

Abstract: A check valve is provided for use in a fluid pump wherein the check valve is associated with a valve spyder providing a means for rapidly removing the check valve from the host valve receiving bore.

Abstract: A Kelly Mud Saver Valve Sub is provided having a tubular valve body with an annular seat fixed in the interior of the valve body. A tubular closure member is reciprocally mounted within the valve body, and is biased with a helical spring into a closing relationship with the annular seat. Unidirectional seals are provided around the closure member to form a chamber in which the spring is retained, the unidirectional seals permitting fluid only to leave the chamber but not enter it. Spacer rings are provided at the downhole end of the chamber to prevent downhole pressure from being communicated past the spacer rings. The closure member in the valve accordingly opens solidly under the force of hydraulic pressure since the pressure acts against a larger area of the uphole end of the closure member than of the downhole end.

Abstract: A novel fluid coupling, a novel tool for removing a coupling seal from the novel fluid coupling, and the method of utilizing the coupling seal removal tool. The coupling 10 includes a check valve 58 which has a skirt portion 64 normally disposed within a coupling seal when either a male coupling 12 is connected to it, or when the male coupling has been removed. The female coupling is so designed that the skirt of the check valve can be entirely shifted outside of the coupling seal 62 when the novel seal removal tool 68 is inserted into the open end of the coupling. The tool is provided with a knife edge (between surfaces 82 and 84) which can engage the inner annular surface of the seat 62 and cause the seal to be removed when the tool is removed from the open end of the female coupling.

Abstract: A self-contained, operative, valving unit which includes a valve body having inlet and outlet ports, and a rotatable valve plug is securely though removably housed within a valve housing having inlet and outlet ports which are permanently secured to pipes through which the fluid media to be controlled is conveyed to and from the housing, and wherein the entire valving unit, per se, is received within a valving-unit-receptive bore of the valve housing with its inlet and outlet ports in cooperative, aligned, fluid tight relationship with respect to corresponding inlet and outlet ports interiorly of the valve housing whereby the flow of fluid media through the valve housing is controlled by the removable valving unit.

Abstract: A top-entry ball valve 10 comprising a valve body 12 having a chamber 13, flow passages 14, 15, a ball 20 rotatably mounted in the chamber for movement between open and closed positions relative to the passages, and a pair of seat assemblies 50 at opposed sides of the ball which may be loaded into engagement with the ball or disengaged therefrom. Each seat assembly 50 comprises a seat ring 51 having a rear portion 51a, a larger diameter portion 51b which forms a shoulder 51c, and a face seal 59. Three pins 65 in the seat ring 51 in equiangular spaced relation project from the shoulder 51c. A spacer ring 53 sleeved about the rear 51a of the seat ring 51 is provided with recesses 68 adapted to receive the pins 65. The spacer 53 is mounted for movement between a first position where it is engaged by the tips of pins 65 and a second position wherein the pins 65 are in the recesses 68.

Abstract: A fluid manifold includes at least two releasably interconnected modules, a valve assembly being mountable on each module. A fluid supply channel in each module is in fluid communication with the valve assembly thereon and with fluid supply channels in adjacent modules. A seal assembly provided between adjacent modules prevents leakage of fluid from the supply channels. Each module has two recesses at one end and two outwardly projecting and integral arms at the other end which are received in the recesses on an adjacent module. The arms and recesses have cooperating detents which retain the modules in the interconnected relationship, and screws extend into grooves provided on the arms to maintain the modules locked together.

Abstract: A high pressure valve for a reciprocating pump including improved means of inserting and extracting the seat from the pump in which the pump has a seat deck of truncated conical configuration, the valve having a seat formed of a tubular element having a frusto-conical exterior configuration dimensioned to be received and retained by friction within the valve seat deck, the seat element having integral webs in the lower interior portion supporting a central stem supporting portion and the upper interior portion of the seat element being internally threaded. The seat element can be installed in or removed from a pump by threading into it an external puller head. Extending from the puller head is a puller stem which is externally threaded. To extract the seat from a pump a puller bridge is positioned across the access opening in the pump through which the seat is inserted, the bridge having an opening receiving the puller stem.

Abstract: A hydraulically actuated fast action gate valve for gating highly viscous uids in a salt water environment includes front and back plates having openings for connection to conduits containing the viscous fluid and a center plate having a slot for receiving a slidable gate that includes an optional check valve. A gate is positioned within the slot and includes upper and lower grooves that provide rapid equalization of pressure of the viscous fluid between the opposite ends of the gate when the gate is rapidly actuated. One end of the gate is connected by a locking pin to an actuating rod that is driven by a hydraulic cylinder that is mounted external to the valve. The front and back plates have opposing passages allowing the actuating rod to be secured to the gate so that the hydraulic cylinder may be removed. An optional opening is provided in the back plate to permit the introduction of a non-gated fluid into piping contained within the inlet conduit.

Abstract: An operably automatic valve assembly for being received in a cavity of a short drill string subassembly, preferably a kelly saver subassembly, for preventing mud spills when the kelly assembly is disconnected when adding additional sections of drill pipe. An eccentric butterfly disc across the valve opening is biased closed by suitable air spring action. Fluid pump pressure in excess of the bias pressure opens the disc and telescopes closed the air springs located on either side of the valve housing within suitable pockets. A stop on one air spring and not on the other causes a slight twist to the disc as the disc reaches its full open position and eliminates any operating flutter of the disc. Pressure within the stem in excess of the closing bias pressure provided by the air springs keeps the disc open even in the presence of back fluid pressure.

Abstract: A check valve assembly for use in backflow preventer apparatus or the like, the check valve assembly being of the poppet valve type. The assembly includes a body member having a flow passage therethrough with an inlet and an outlet, the body member further having an annular valve seat in said passage and an opening in its wall opposite and coaxial with the valve seat. A tamperproof preloaded valve module is inserted through said opening for coacting with the valve seat and the module is retained in position within the body by a cover plate closing the opening.

Abstract: In accordance with the present invention, an unloading assembly for a top operated lading valve is disclosed. The unloading assembly includes means for connecting an unloading outlet chamber to the existing depending valve outlet chamber of the lading valve. The unloading outlet chamber is hollow and is in fluid communication with the lading valve outlet chamber. The unloading assembly includes an operating shaft extending upwardly through the unloading outlet chamber and through the valve outlet chamber. The operating shaft includes a non-round connection portion adapted to engage a non-round connection portion of the top operating rod.

Abstract: Suction and discharge valve assemblies for a high pressure reciprocating plunger pump include generally tubular valve seat members insertable in cylindrical bores in a pump fluid end cylinder body and are in sealing engagement with the bores by cooperating o-ring members, respectively. A valve closure member has plural guide ribs projecting from a disc portion and insertable in a bore in the valve seat. Closure member guides are disposed in the respective cylinder bores and are formed with a base portion having concavely curved sides and axially extending guide arms.

Abstract: In an expanding gate valve, tangential pins (70) are received loosely in peripheral grooves (62) of floating valve seats (26) to prevent the seats from moving inwardly far enough to drag against a gate mechanism (32) which is collapsed for movement between open and closed positions of the valve. Alternative arrangements provide retainer rings (122, 130) which engage shoulders (128) of the seats to limit their inward floating movement.

Abstract: In a wall hydrant, on the inner and outer ends of a wall-penetrating conduit, an inlet connection casting and a discharge casting; a valving member movable axially in an inlet valving bore relative to a seat; a lateral conduit outlet from a discharge casting bore; a shaft structure including key-rotated stem threaded through a plug in the latter bore end and connected axially to shift, upon rotation, the valving member, and also a shaft-carried flange "O"-ring sealable on an interior surface controlling plug-associated exterior draining and air vent openings; the valving and flange seals being spaced, relative to the controlling surface and inlet bore spacing, for conduit drainage and vent opening after inlet closure; a part of the shaft structure upon removal being invertable to serve as a valve seat service tool. Within the hydrant, an anti water backup device.

Abstract: A faucet has a sealing member clamped at its periphery and overlying an orifice through which fluid is to flow. Pressure applying means maintains the sealing member in sealing engagement with the wall defining the orifice. Upon removal of the pressure applying means the sealing member moves away from the orifice to permit flow.The pressure applying means is located in a valve body which is screwed into the faucet housing and acts to change the periphery of the sealing member. The valve body may be removed by removing the handle and engaging a pair of projections within the handle with a pair of ears on the valve body. The sealing member is thus unclamped and easily removed.

Abstract: A pressure relief mechanism seated within a wall of a pressure vessel features a novel flexible seal. The vessel pressure acts against both a spring and an internal valve pressure created by the flexible seal. The pressure relief mechanism can be designed to release over a wide range of critical vessel pressures due to the combination of the resistive spring force and the resistive internal pressure.

Abstract: An expanding gate valve having seats (74) which are mechanically secured in place. The valve body has seat pockets which include undercut grooves (78) intersected by a cylindrical body cavity (24) to form a pair of openings (80) to each groove. Each valve seat has a pair of lugs (90) which may be fitted through the openings and into the undercut groove. Subsequent rotation of the seat locks the lugs in the groove to secure the seat in place in its seat pocket. Each seat is able to pivot about an axis extending between the lugs in order to compensate for irregularities in the contact surfaces of the gate or seat.

Abstract: A valve adapted to be connected in a fluid line for shutting off flow in response to fluid pressure in excess of a predetermined pressure. The valve includes a housing provided with inlet and outlet ports separated by a valve seat. A pressure chamber in the housing is defined by a diaphragm subjected to the pressure of fluid flowing through the housing. The diaphragm is a unitary, homogenous, fluid impervious snap disc movable between two over center stable positions. A valve member cooperating with the valve seat is connected to the diaphragm by a stem, and the valve is open in one diaphragm position and closed in the other diaphragm position. A spring biases the valve member toward the closed position and is adjusted to preload the diaphragm so that when fluid pressure exceeds a predetermined value the diaphragm moves from the valve open to the valve closed position. A reset member is carried by the diaphragm and permits manual reopening of the valve.

Abstract: A two-piece retainer ring fits within opposed grooves (80,82) in a gate valve seat (64) and the adjacent valve body (12). The opposed grooves are of a width greater than the width of the two ring segments (84) comprising the two-piece ring and limit the movement of the associated floating seat (64). A wave spring (86) urges the ring segments (84) radially outwardly in the grooves and an access opening (88) to the grooves permits the ring segments (84) to be actuated by a suitable tool for removal of the seat, if desired.

Abstract: In a top operated tank car valve, a mounting flange is welded to an opening in the bottom of the tank. A valve seat is located inboard of, and above the lower surface of, the mounting flange. A vertically extending cage is integrally attached to the mounting flange. A top operator extends to the top of the tank, and a stem is attached to the lower portion of the top operator. The stem extends into an opening in a valve closure plug. A non-round cavity is formed in the bottom of the stem. The closure plug includes a seat which engages the valve seat located within the mounting flange. The closure plug includes a circular guide ring which engages a portion of the vertically extending cage as the closure plug moves between open and closed positions. The closure plug includes a vertical, generally central opening which communicates with the circular head portion of the valve stem.

Abstract: A quick-release system is disclosed for mounting a faucet assembly that includes a valve positionable on and operable from one side of a wall structure which is connected to a source of fluid on the other side of the wall structure through an opening therein. The quick-release system comprises an escutcheon, mounted in fixed relation with the valve on one side of the wall structure, that is configured to prevent its passage through the opening and an elongate, substantially inextensible stem mounted in fixed relation with the valve and the escutcheon that provides fluid communication between the valve and the fluid source. The stem is configured to extend through the opening with its free end spaced from the other side of the wall structure and is formed with at least one groove intermediate the free end and this other side.

Abstract: A valve adapted for insertion in a radially enlarged portion of the kelly saver sub to retain mud in the kelly when the drill pipe is disconnected therefrom, including a tubular body with a downwardly extending closure member supported thereby, and a piston having an axial passage for the flow of drilling mud therethrough, axially movble within the body. The plug may be removed from the bore by the application of an upwardly directed tension force thereto, so that wire line tools may be run through the bore and the passage.

Abstract: A check valve comprises a housing defining a valve seat thereon and a valve member reciprocally mounted in the housing to normally engage the seat for blocking fluid flow therepast. Two pairs of split retaining members are mounted in axially spaced relationship on a stem of the valve member and are expanded axially thereon by a compression coil spring for biasing the valve member to its closed position. A stop member is secured on an end of the stem of the valve member to prevent movement of one pair of the retaining members therepast. A slot is formed axially through the stop member and extends partially in the stem of the valve member to expose an end of the spring.

Abstract: A tool for extracting a cartridge from a single lever faucet including an elongated threaded shank threadedly connected to the faucet cartridge. The shank extends axially along the interior of a sleeve placed in surrounding relation to the cartridge. A handle element on the shank held captive by a head on the shank is used to pull the cartridge from a faucet construction into the interior of the sleeve of the tool once the shank is threadedly connected to the cartridge.