Abstract: A reciprocating compressor includes a cylinder including a cylindrical cylinder portion and a cylinder head portion provided on one side of the cylinder portion, and a piston mechanism reciprocably fittedly inserted on an inner peripheral side of the cylinder portion and including a piston defining a compression chamber and a non-compression chamber. A bottomed hole-shaped valve body housing portion is formed at the cylinder head portion. The valve body housing portion is opened to a piston side facing the piston in an axial direction of the cylinder portion. Further, a discharge valve unit and a valve holding member are provided in the valve body housing portion. The discharge valve unit is inserted in the valve body housing portion. The valve holding member holds the discharge valve unit in the valve body housing portion, and includes a communication hole establishing communication between the valve body housing portion and the compression chamber.

Abstract: A hydraulic and/or pneumatic connector, said connector comprising a fixed part adapted to constitute the end part of a first hydraulic circuit of a main operating machine and to be fixed to said main operating machine, said fixed part comprising at least one first male or female hydraulic coupling, said connector comprising a movable part intended to constitute the end part of a second hydraulic circuit of a piece of equipment, said movable part comprising at least one second hydraulic coupling, respectively either female or male, where said at least one first hydraulic coupling of said fixed part and at least one second hydraulic coupling of said movable part are adapted to be hydraulically connected so as to achieve the hydraulic connection between said first and second hydraulic circuits of said male operating machine and said equipment, respectively, said connector comprising mechanical constraint means which can be switched between a first configuration or position and a second configuration or position,

Abstract: A water mixer with mixer cartridge (40) with control element (42) and lever handle (31) operable from left to right to control the ratio water flow from respective hot and cold intakes to a single outlet (18), and about a transverse axis to control rate of flow. A mixer body (20) defines a post (22) and a protruding outlet arm (24) at its end. The body defines, at the aforesaid end of the post and extending into the arm, a rim (25) about a recess (26) that receives part of the lever handle in a central off position thereof. In another aspect, lever handle (31) is pivotally mounted to support (50, 150) at a first pivot (52,54) that is fixed against translation and to the control element of the cartridge at a second pivot (48) that is slidable in a slot (39).

Abstract: A plunger pump fluid end assembly design in which the suction valve and seat is aligned with the plunger and the fluid end housing is constructed with multiple modules. Modules are held in a rigid assembly by staybolts that connect to the power end of the plunger pump. Said staybolts pass though bores in the central fluid module and the suction seat module and bound by a conventional threaded nut. Packing box modules are bound to the central fluid module by bolts that also pass through separate bores in the same central module. A suction valve spring retainer/plunger spacer within the plunger bore of the assembly shields the intersection of the plunger bore and the discharge bore from destructive erosion damage.

Abstract: A pressure responsive apparatus may include a valve body having an input to be exposed to pressure in a fluid line and an output to drain fluid from the valve body, and a plunger positioned in the valve body. A pressure chamber may be defined in the valve body between the plunger and the input such that the plunger is exposed to the pressure in the fluid line. The plunger may be movable between a seated position characterized by the plunger blocking fluid movement out of the pressure chamber through the output, and a release position characterized by the plunger permitting fluid movement out of the pressure chamber through the output. A biasing assembly may be configured to bias the plunger toward the seated position and being adjustable to apply an adjustable amount of biasing force to the plunger against the pressure of the fluid in the pressure chamber.

Abstract: A reciprocating compressor is provided with a compression section which compresses gas, and a crank section which has a crankshaft and drives the compression section. The compression section is provided with a wall body portion which includes a cylinder and constitutes a wall body of the compression section, a cylinder head attached to the cylinder, a piston which reciprocates within the cylinder, a piston rod which couples the crankshaft and the piston, and at least one sealing member fixed to the wall body portion and disposed in the circumference of the piston rod. The wall body portion has a first boundary wall which forms the boundary with the crank section in the crank section side with respect to the at least one sealing member and acts as a division surface when the crank section and the compression section are separated.

Abstract: A downhole drilling motor, system, and method for using same are disclosed. A downhole drilling motor can include a power section stator having a first end, a second end, an internal cavity passing therethrough. The downhole drilling motor can further include a rotor assembly positioned and fully encased in the internal cavity. The rotor assembly includes a power section rotor, a drivetrain operably coupled to the power section rotor and a bearing set. The power section rotor is positioned at the first end within the internal cavity of the power section stator. The power section rotor, the drivetrain, and the bearing set are fully encased in the internal cavity of the power section stator. Additional apparatuses, systems, and methods are disclosed.

Abstract: Reciprocating fluid pumps include a pump body including a cavity therein, a plunger located at least partially within the cavity, and a shift canister assembly disposed within the cavity. The shift canister assembly includes a sealing surface for forming a seal against the pump body. An area covered by the seal between the sealing surface and the pump body is less than about 75% of an outer cross-sectional area of the shift canister assembly. The shift canister assembly may include a shift canister and a shift canister cap attached thereto, the shift canister cap comprising the sealing surface. Reciprocating fluid pumps include a shift canister, a shift piston at least partially disposed within the shift canister, and a shift canister cap attached to the shift canister on a longitudinal end of the shift canister opposite the shift piston. Methods include forming such reciprocating pumps.

Abstract: The present disclosure is directed to a backwater valve assembly comprising a main valve body, a flapper sub-assembly, and a cap. The main valve body has an inner wall that can define a recess into which the flapper sub-assembly can be removably secured. The flapper sub-assembly includes at least one flapper element that can pivot between an open position, in which the flapper element allows fluid to flow through the backwater valve assembly, and a closed position, in which the flapper element prevents fluid from flowing in the opposite direction. The flapper sub-assembly can be removably coupled to the cap to allow the flapper sub-assembly and cap to be installed in or removed from the main valve body together as a unitary assembly.

Abstract: A high-pressure homogenizer, comprising: a plurality of pumping pistons (2a, 2b), for feeding a liquid to be homogenized toward a manifold (6), each piston being associated with a respective oil hydraulic cylinder; a homogenizing valve positioned downstream of said pumping pistons (2a, 2b); and an electronic system (5) for controlling and regulating said pumping pistons (2a, 2b), which controls the law of motion of each individual piston (2a, 2b) independently. Said electronic regulation system (5) is connected to a transducer placed on the manifold (6) to regulate the delivery of oil to the individual cylinders (3a, 3b) according to the pressure, sensed in the manifold (6), of the liquid to be homogenized pumped by said pistons (2a, 2b) in order to maintain a stable flow rate and pressure.

Abstract: A system and method for testing the oil in a transformer, comprising attaching a threaded shaft to the wall of the oil tank at a height sufficient to avoid the sediments that accumulate on the bottom of the oil tank, drilling a small hole through the stud into the tank, attaching a ball valve to the stud, and filling a double-ended glass vial through the hole. The double-ended glass vial preferably comprises a cap with a tapered barbed stem incorporating a shut off valve that can be connected to the ball valve port by means of simply processing the tapered barb stem into the ball valve port.

Abstract: An apparatus includes a blowout preventer housing including a bore extending therethrough and a cavity intersecting the bore. The apparatus further includes grooves in the outer profile of the blowout preventer housing, the grooves being on opposite sides of the cavity.

Abstract: A faucet body without compartment is disclosed. The faucet body is casted and forged integrally with an upright tubular shell, and the upper portion of shell comprises a thread segment. A first annular convex and a second annular convex are formed at a lower portion of the thread segment, and a flow space is formed between the first annular convex and the second annular convex. Below the second annular convex, At least a first bearing base, a second bearing base and a support block extend from the second annular convex. The first bearing base, second bearing base and support block are connected by a protruding shoulder to support the fined ceramic valve in the faucet body. An outlet conduit extends forward from a periphery of top of the shell, and an outlet channel is formed inside the outlet conduit to connect to the flow space of the shell.

Abstract: A ball valve including upstream and downstream seats and a ball having a flow opening disposed between the upstream and downstream seats. A flow path is defined through the valve only when the ball is disposed in an open position. In one embodiment, when the ball is disposed in a closed position the upstream seat may intermittently disengage from the ball to relieve hydrostatic expansion of a liquid within the ball resulting an increased pressure that is greater than a pressure within a body cavity of the valve outside the ball. In another embodiment, a distance between the upstream and downstream seats is greater than an outer diameter of the ball and the ball engages only one of the upstream and downstream seats when disposed in the closed position and a pressure differential is defined between the upstream and downstream seats. The upstream and downstream seats may each include a partially spherical sealing surface that may have a crenulate configuration.

Abstract: Valve removal tool and method for removing older corporation valves/valves from pressurized lines such as water mains without depressurization. The removal tool is temporarily fastened to a saddle around the water main and includes a valve through which a tool may be inserted to grasp and unscrew the old valve and withdraw the old valve through the valve in the tool. The tool also allows placement of a plug in the opening in the water main left by the removal of the tool. Typically a cap is placed over the opening in the saddle to provide a final seal in the event the plug leaks or is somehow dislodged.

Abstract: A check valve system including a plumbing assembly and a check valve assembly. The plumbing assembly has at least three portals including a first portal, a second portal and a third portal. The check valve assembly is positioned to block a fluid flow entering the second portal from flowing out of the first portal. The check valve assembly includes a securing mechanism positioned in the third portal.

Abstract: A circulator sub tool and fluid saver with a system and method for dispensing and circulating fluid in a well bore having a threaded packer sub with a quick coupler body, and wherein diameters for each annulus of the quick coupler body and the sub body are substantially identical enhancing laminar flow through the threaded packer sub.

Abstract: A backwater valve assembly includes a valve housing, a valve member and a servicing tool. The valve housing has an internal ledge within its interior on which is positioned a retainer clip oriented in vertical alignment with a riser. The valve member has a first engagement of a two part engagement on one face and a mounting along a peripheral edge which includes transverse pins adapted to engage the retainer clip. The servicing tool includes a second engagement of the two part engagement at a working end of a shaft. The hook engages the hook receiver of the valve member during insertion and removal.

Abstract: A turning tool (5?) for turning a jet regulator, a nozzle, an intermediate holder, a flow regulator, a non-return valve or a similar plumbing fitting (5) is provided. The fitting (5), on the outlet side, is detachably held on a plumbing water outlet armature (2) by a threaded connection or a bayonet connection, whereby the turning tool (5?) can be placed on the plumbing fitting (5) in a rotationally fixed manner. The turning tool is characterized in that the turning tool is also provided in the form of a plumbing fitting or as a component of a plumbing fitting, that he turning tool (5?) can be placed in a rotationally fixed manner on an outer or an inner periphery of the fitting (5) that is held on the water outlet armature, and or that he turning tool (5?) has a face profiling or contouring (24, 25) that can be placed in a rotationally fixed manner on a mating profiling or a mating contouring (25, 24) provided on the outlet face of the fitting (5) that is held in the water outlet armature (2).

Abstract: A curb box lock that includes a body portion and a plurality of slidably extendable claws within the body portion. The claws being extendable from the body portion to selectively engage side walls of a curb box. The lock also includes an adjustment mechanism operatively connected to the claws and the body portion. The adjustment mechanism selectively extends the claws such that the claws can be maintained in engagement with the side walls at all times when the lock is deployed within a curb box to prevent removal of the lock.

Abstract: A valve having a valve packing removal device attached thereto is disclosed. The valve may include a valve plug reciprocally disposed within the valve housing and connected to a sliding stem. The packing may be provided about the valve stem to ensure or minimize leakage of regulated fluid from the valve. A sleeve may have a diameter less than a bore in which the packing is disposed and may be connected to the valve stem such that when the valve stem is sufficiently pulled from the valve, the sleeve engages the packing and pulls the packing from the valve.

Abstract: A three-part sub-assembly comprising a wire line retrievable spear. The spear having two fluid chambers. A diverter valve having a truncated, inverted cone valve seat is preferably threaded into the interior of the spear. A diverter valve stem, having back-to-back cones is located within the interior of the spear/diverter valve combination, with one of the cones having a linear extension which prevents the first cone from completely seating against the valve seat within the interior of the spear. The spear/diverter valve assembly and a spring-loaded piston is placed within the interior of the cylinder and utilizes an adjustable ring within the interior of the cylinder as an adjustment for varying mud weights.

Abstract: A fire hydrant security arrangement includes a center post which is retained on the operating nut of the fire hydrant by a central bolt which is threaded into the operating nut. The center post has a pentagonal recess therein which receives an insert, the insert having an inner recess which corresponds in shape to the operating nut. A domed housing is slid over the operating nut and can rotate with respect thereto. A circular groove in the center post receives a projection from a security plug which has been threaded through a threaded bore in the domed housing. The security plug has a socket therein which includes a recess which is off-set slightly from the axis of the plug and is only operable by a security tool having an off-set projection that is receivable in the recess. Without possession of the security tool, it is very difficult to achieve sufficient purchase on the plug to rotate the plug and withdraw the plug sufficiently away from the circular groove in the center post to remove the domed housing.

Abstract: A replaceable valve seat ring for a valve assembly has an annular ring body and an open flow passage extending through the ring body. A seating surface is provided on the ring body adjacent one end of the flow passage. A tool accepting region of the flow passage is formed concentric with and at least partially along the flow passage. The tool accepting region is adapted to receive a standard tool head therein for installing and removing the valve seat ring.

Abstract: A coupling assembly is provided that includes a first coupling member removably securable in an apparatus having a port that includes a receiving groove, a retaining surface and a resilient locking member receivable in the receiving groove. The first coupling member includes a body extending along an axis from a leading portion configured for receipt within the port of the apparatus to a trailing portion configured to releasably connect the first coupling member to a second coupling member. The body includes a rib having a ramp tapering outwardly in a direction way from the axis and a shoulder tapering inwardly toward the axis. The coupling member and port are sized such that upon insertion of the first coupling member into the port, the resilient locking member travels up the ramp and then contracts becoming trapped between the shoulder and the retaining surface to secure the first coupling member to the apparatus.

Abstract: A removable flow restrictor 750 and a corresponding method for regulating flow through a fluid fertilizer distributor 700 are provided. A supply inlet port 712 is in fluid communication with a plurality of fluid outlet ports 716. The flow restrictor 750 is removable positionable within the fluid distributor 700 between the inlet port 712 and the outlet ports 716, for restricting flow between the inlet port 712 and the outlet ports 716. A restrictor engagement member 752, which may be a thread, on the flow restrictor 750, engages with a tool engagement member 762 on a retrieval tool 760. With the restrictor engagement member 752 engaged with the tool engagement member 762, the retrieval tool can be used to both position the flow restrictor 750 within the fluid distributor 700, and to remove the flow restrictor 750 from the fluid distributor 700. After positioning within or removing from the fluid distributor 700, the flow restrictor 750 may be disengaged from the retrieval tool 760.

Abstract: A replaceable valve seat ring for a valve assembly has an annular ring body and an open flow passage extending through the ring body. A seating surface is provided on the ring body adjacent one end of the flow passage. A tool accepting region of the flow passage is formed concentric with and at least partially along the flow passage. The tool accepting region is adapted to receive a standard tool head therein for installing and removing the valve seat ring.

Abstract: A modular cooling system adapter for coupling to an orifice and applying pressure from a source of pressurized gas. The adapter includes a universal cooling orifice fitting for attaching the device to cooling system orifices of various sizes and configurations. The universal fitting preferably includes a plurality of steps having outer axially extending surfaces disposed at a slight negative angle to a plane parallel to the axial direction. The adapter may include a pressure adapter for coupling to a source of pressurized gas, such that the pressure adapter can be interchanged with other diagnostic tools including a valve assembly, a valve assembly incorporating a temperature probe and gauge and/or a pressure gauge. Additionally, the cooling system adapter is fully modular in that it allows quick disassembly for replacement of components and interchangeability of diagnostic tools.

Abstract: A novel, one-way nut fastener including a nut body with a side wall that is internally threaded and lobes that extend from the side wall of the nut body. Each lobe has a flat portion that extends substantially radially away from the side wall and a curved portion that extends from the flat portion to the flat portion of an adjacent lobe. A special tool uses the leverage that is gained from the flat portions of the lobes to tighten the cap threads onto the threads of a stem portion. Since the leverage gained from the lobes, which is used to tighten the nut fastener, cannot be used to loosen the fastener, it is much more difficult to remove the nut fastener.

Abstract: A replaceable valve seat ring for a valve assembly has an annular ring body and an open flow passage extending through the ring body. A seating surface is provided on the ring body adjacent one end of the flow passage. A tool accepting region of the flow passage is formed concentric with and at least partially along the flow passage. The tool accepting region is adapted to receive a standard tool head therein for installing and removing the valve seat ring.

Abstract: A theft resistant valve cap including a liner adapted for threaded engagement with a standard pneumatic tire stem valve, a sleeve rotatably mounted with the liner to shroud it and an interlocking feature to selectively prevent axial displacement between the liner and the sleeve. The liner includes a hollow body with first and second opposed ends that features shoulders positioned proximate to one of said opposed ends. The shoulders, when employed with the sleeve rotatably mounted with the liner to shroud it, facilitates restricting removal of the cap from the valve stem to authorized individuals, only. Specifically, an interlocking mechanism extends between the liner and the sleeve and limits axial movement therebetween, while allowing rotational movement. To remove the cap from the valve stem, a key is employed which forms an interference fit with the shoulders in the liner, once exposed.

Abstract: An apparatus for pulling a valve member from a pump. The apparatus comprises a puller stem containing external threads and a bushing having an inner surface, and wherein the puller stem is disposed through the bushing. Also included is a first halve nut containing first internal threads, and a second halve nut also containing internal threads. The first end of the bushing will abut both the first halve nut and the second halve nut. The apparatus further includes a sleeve having an outer portion and an inner portion, and wherein the inner portion has the threaded stem therethrough. The sleeve will engage the first halve nut and the second halve nut. In the preferred embodiment, the apparatus further comprises a first lip attached to the first halve nut and a second lip attached to the second halve nut. The sleeve contains a collar that is concentrically disposed about the sleeve, the collar having an overlapping leg that forms a chamber, and wherein the first and second lip are disposed within the chamber.

Abstract: A valve having a housing and a valve member located in the housing for controlling the flow of a fluid or fluid pressure directed through the housing. The valve further includes a removable valve seat located in the housing and against which the valve member engages and disengages in the fluid or fluid pressure control process. A sealing member is located between an outer surface of such valve seat and an inner surface of the housing of the valve. The removable valve seat being made of a durable molded plastic material.

Abstract: A theft resistant valve cap including a liner adapted for threaded engagement with a standard pneumatic tire stem valve, a sleeve rotatably mounted with the liner to shroud it and an interlocking feature to selectively prevent axial displacement between the liner and the sleeve. The liner includes a hollow body with first and second opposed ends that features shoulders positioned proximate to one of said opposed ends. The shoulders, when employed with the sleeve rotatably mounted with the liner to shroud it, facilitates restricting removal of the cap from the valve stem to authorized individuals, only. Specifically, an interlocking mechanism extends between the liner and the sleeve and limits axial movement therebetween, while allowing rotational movement. To remove the cap from the valve stem, a key is employed which forms an interference fit with the shoulders in the liner, once exposed.

Abstract: An access port or drain for liquids held in a container, having a port member having a bore communicating with the interior of the container. A valve member seals the bore. A spigot member having an internal bore is adapted to connect by complementary connection means to valve member and to move the valve member inwardly of the container to open the valve such that liquid in the container is able to flow through the spigot member via opening in the spigot member.

Abstract: A valve device for selectively controlling the flow of high-pressure fluid from a source to either of a dump, or discharge, mechanism or to a gun used for water blasting; said valve device includes opposed valve seats and a valve member movable between said seats thereby controlling such flow.

Abstract: A plaster guard for a concealed sanitary valve which can be controlled by means of a valve control element such as a valve spindle or a valve control disc. The plaster guard is equipped with a tool to operate the valve control element.

Abstract: An irrigation sprinkler of the type having an inlet control valve is provided with a removable valve seat formed integrally with an inlet filter screen. The valve seat is positioned to engage a valve head to normally prevent water inflow to a sprinkler case, whereas the filter screen prevents entry of small rocks and other particulate debris into the sprinkler case when the inlet control valve is open. The valve seat is removable from the top of the sprinkler case, without requiring disconnection of the case from a water supply line, to permit flushing of collected debris or to permit replacement of a damaged valve seat.

Abstract: The invention provides a valve for regulating fluid flow. The valve having a collar, a plug and a flapper seal. The collar defining an aperture and having a base with an opening therein, with a shaft extending from the base within the aperture. The plug being movably and sealably mounted to the collar within the aperture and defining a passage for fluid flow through the valve. The passage being in fluid communication with the opening in the base of the collar. The plug co-operating with the shaft to retain the plug in the collar. The flapper seal is movably and sealably mounted to the shaft within the passage in the plug. The plug is movable between three positions, wherein the valve can be completely sealed, act as a one-way valve, or act as a two-way valve.

Abstract: A curb box locking device has a core unit with a head at its upper end and a foot at its lower end. A sleeve surrounds and is shiftable axially in relation to the core unit. Claw members are carried on the core unit for pivotal movement through side openings in the sleeve. The locking device is externally configured and dimensioned to be lowered into the curb box to a position at which the foot of the core unit is at rest on a valve or the like at the bottom of the curb box. The sleeve is engageable with the claw members during upward displacement of the sleeve relative to the core unit to pivotally urge the claw members radially outwardly into extended positions engaging the interior of the curb box to thereby resist upward removal of the locking device. The locking device is upwardly removable from the curb box by employing a tool specially designed to pull upwardly on the core unit.

Abstract: The present invention relates generally to a valve lock for use in conjunction with a valve stem contained on an inflatable tire. The device comprises a hollow tubular component that receives the valve stem. A plurality of fingers are attached to the inner wall of the tube component and grip the valve stem holding the tube component in place. Also disclosed is a locking cap that threadedly engages the fingers causing them to tighten against the exterior of the valve stem. The locking cap can only be removed with the use of a matching key that is inserted into matching indentations on the locking cap.

Abstract: A safety cap for preventing unauthorized access to a refrigerant valve is described. The safety cap has a locking piece that attaches to the valve's threaded portion and covers the valve's access port. A collar surrounds the locking piece and is mechanically decoupled therefrom, so that motion is not communicated therebetween. The locking piece has a topographic feature such as a number of asymmetrically placed holes. A special releasing tool that has complementary protrusions for interfacing with the holes is required in order to decouple the locking piece from the valve.

Abstract: A cylinder valve insert is used to be mounted within the outlet of a cylinder valve of a cylinder to allow a fluid to pass through the valve when a male fitting is sufficiently engaged with the outlet, and to prevent such fluid flow when the male fitting is separated therefrom. The valve insert includes a body member adapted to be mounted in the outlet; a docking member which is mounted in the body member, has a tapered portion facing away from the normal flow direction of the fluid; a valve member which has a part mounted in the body member and the docking member and movable relative thereto, defines a fluid passage communicating with an open end of the outlet; a sealing member which is mounted surrounding the valve member, is adapted to control such fluid flow from the cylinder to enter into the fluid passage; and a spring which is located between an inner end face of the outlet and the valve member, is adapted to exert a pushing force to push the valve member toward the body member.

Abstract: A control stop for use in a plumbing supply line includes a body having an inlet and an outlet. There is a valve seat in the body and a valve member movable toward and away from the valve seat to control flow from the inlet to the outlet. There is an opening in the body providing exterior access to the valve member for adjustment thereof. A vandalproof cap assembly closes the opening. The cap assembly includes a sleeve threadedly attached to the body about the access opening. A cap is mounted on the sleeve for free rotation relative thereto. The sleeve and cap have tool receiving openings therein which, when in alignment, and with a tool inserted therein, will provide for concurrent movement of the sleeve and cap for removal thereof from the body access opening.

Abstract: A gas tank evacuator (10) comprises an evacuator housing (12) into which a neck (80) of a gas tank (82) can be screwed and an elongated valve-removal rod (14) for slidably passing through the evacuator housing and engaging and unscrewing a stem-actuated valve (88) of the gas tank. An elongated valve actuator pin (18) slidably passes through the valve-removal rod to extend from lower and upper ends of the valve-removal rod for independently actuating the stem-actuated valve. The valve-removal rod is moved longitudinally by a valve-removal-rod lever (16) which is pivotally attached to the evacuator housing and valve-removal rod by pivot links (60). The valve-removal-rod lever is pivoted on the evacuator housing to drive a valve-engaging device at a lower end of the valve-removal rod into engagement with the-stem-actuated valve of the gas tank for its removal from the gas tank.

Abstract: A gas tank evacuator (10) comprises an evacuator housing (12) into which a neck (80) of a gas tank (82) can be screwed and an elongated valve-removal rod (14) for slidably passing through the evacuator housing and engaging and unscrewing a stem-actuated valve (88) of the gas tank. An elongated valve actuator pin (18) slidably passes through the valve-removal rod to extend from lower and upper ends of the valve-removal rod for independently actuating the stem-actuated valve. The valve-removal rod is moved longitudinally by a valve-removal-rod lever (16) which is pivotally attached to the evacuator housing and valve-removal rod by pivot links (60). The valve-removal-rod lever is pivoted on the evacuator housing to drive a valve-engaging device at a lower end of the valve-removal rod into engagement with the stem-actuated valve of the gas tank for its removal from the gas tank.

Abstract: A built-in regulator cone adjusting tool for a second stage regulator having a housing, an inlet port in the housing, and a cone having a front end and being disposed in the inlet port for reciprocal axial movement, the tool including a tubular body configured for axial rotation in the inlet port of the housing and having a first end and a second end, the second end having at least one tab for releasably engaging the front end of the cone for adjusting the relative position of the cone in the housing.

Abstract: A breakaway unit which is adapted to be mounted in series flow relation with a fuel nozzle. The breakaway unit comprises a flex section which assures an axial transmission of forces to a valve section which is separated when a vehicle drives away from a dispensing unit with the nozzle lodged in its fuel tank. The valve section comprises inlet and outlet couplers and means for releasable locking the couplers in an assembled relation. These means comprise fingers which are flexed outwardly when a separating force exceeds a predetermined value. Garter springs embrace the fingers to accurately control at which the couplers will separate. The fingers engage angularly spaced lugs which permit the fingers to be telescoped therebetween and then rotated to a locking position to facilitate reassembly of the couplers with a minimum of effort. Alternate embodiments of the invention disclose other forms of spring means for accurately controlling the force at which the couplers will separate.

Abstract: A valve assembly includes a self-contained, packing removal means for removing the valve packing. The valve assembly includes a valve stem connected at one end to a valve, a bonnet for mounting the valve stem on a valve body having a valve seat engageable with said valve on said valve stem, and means for raising and lowering said valve stem to selectively open and close said valve. The bonnet includes a packing chamber through which an intermediate portion of the valve stem extends. The packing removal means comprises a radially displaceable lifting element disposed within the valve stem and movable to an extended position where it engages the packing assembly from underneath upon operation of the valve stem to lift the valve packing from the packing chamber.

Abstract: A check valve apparatus is provided for use in connecting two fluid passageways, such as between which have multiple fluid passageways. The check valve manifolds and servovalves apparatus includes a poppet seal and a spring which engages and biases the poppet outward in sealing engagement with a portion of the wall surrounding the fluid passageway entrance and the entrance is effective for receiving an extension of the other fluid passage so that the extension engages and biases the poppet open. Mounted on the poppet is a means for sealing and retaining said poppet within the cavity which in the preferred mode is an elastomeric O ring restrainedly mounted within an annular channel circumscribing the poppet. One embodiment contemplates servovalve including a casing having extensions which comprise a filter.