Abstract: A proportioning dispenser of concentrated chemical mixed in a diluent such as water includes a water valve, an in-line water pressure regulator downstream of the valve and an eductor downstream of the regulator. When the valve is open, water flows to the regulator, and a pressure regulator water flow passes to the eductor. When the valve is closed, no water flows to the regulator, which sees pressurized water only when the water valve is open during a dispensing cycle. More accurate dilution ratios are achieved over a wide range of incoming water line pressures. In an alternate embodiment, a water valve and a regulator are formed in a common housing with the regulator operationally downstream of the valve.

Abstract: A clamping device has a removable handle to move a clamp between an opened and clamped position. A receiving member is on the clamp to receive the handle. The handle has a latching member to couple with the receiving member. An actuating member is coupled with the handle to move the clamp from an opened to clamped position. A release mechanism is coupled with the clamp or handle to move the clamp from a clamped to an opened position.

Abstract: A nozzle including a dispensing path configured such that fluid is dispensable therethrough. The nozzle further includes a suction path configured such that a negative pressure is created therein when fluid flows through the dispensing path. The nozzle has a fluid recapture path configured to capture therein fluid positioned on an outside of the nozzle. The fluid recapture path is in fluid communication with the dispensing path and the suction path such that fluid in the fluid recapture path is directable into the dispensing path by the negative pressure.

Abstract: A piston including a crown and at least one pin tower coupled to the crown. The pin tower has an opening therein configured to receive a pin therein along a pin axis. The piston further includes a skirt extending generally away from the crown, the skirt including a pair of opposed skirt panel portions. The skirt has a generally non-circular oval shape having a major axis extending generally parallel to the pin axis, wherein the panel portions are offset from the major axis.

Abstract: A piston system including a body defining a bore and a piston positioned inside the bore and mounted for reciprocation therein. The piston includes a crown and a skirt extending generally away from the crown, the skirt including a pair of opposed panel portions. The piston further includes a transition portion configured to first engage the body during reciprocation of the piston in the bore. The piston is configured such that additional movement of the piston in the bore after the first engagement causes additional contact between the piston and the body, the additional contact increasing or moving in a circumferential direction about the piston. The piston is configured such that maximum side loading forces from the body to the piston are applied to the piston at one of the panel portions.

Abstract: A fluid handling swivel joint and fluid conveyance equipment incorporating the same includes a first flanged portion, a tail portion that form a conduit. The fluid handling swivel joint also includes a body secured to the first flanged portion and at least partially surrounding the tail portion, where the body and the tail portion form a raceway. The fluid handling swivel joint further includes a primary seal positioned between the first flanged portion and the tail portion, and a secondary seal positioned between the first flanged portion and the tail portion and radially outward of the primary seal. The fluid handling swivel joint also includes a first environmental seal and a second environmental seal positioned to contact two of the first flanged portion, the tail portion, and the body to form an isolated volume around the plurality of roller elements.

Abstract: A clamping device has a toggle lever mechanism (2) with a linearly movable actuator (1) and a pivot shaft (23) with a tensioning arm (21). A mechanism to unlock an over-center position is coupled with the toggle lever mechanism. The mechanism includes a control element (3) that is arranged on the actuator (1) and a rocker (4). The rocker (4) can be brought into adjusting contact with the control element (3). The control element (3) is in the form of a control extension in a direction facing away from the pivot shaft. The actuator (1) is arranged between the pivot shaft (23) and the rocker (4).

Abstract: A clamp has a housing with a piston assembly positioned in the housing. A detent mechanism is coupled with the piston rod and is positioned in the housing. A clamping arm is coupled with the piston rod. The clamping arm is moved by a biasing mechanism from a position parallel to the piston rod, when in a retracted position, to a position substantially perpendicular to the piston rod, when in a clamping position.

Abstract: A clamping device has a removable handle to move a clamp between an opened and clamped position. A receiving member is on the clamp to receive the handle. The handle has a latching member to couple with the receiving member. An actuating member is coupled with the handle to move the clamp from an opened to clamped position. A release mechanism is coupled with the clamp or handle to move the clamp from a clamped to an opened position.

Abstract: An improved diaphragm type chemical dosing pumps can be designed as both a variable displacement accurate dosing pump and a fixed displacement accurate dosing pump. The improved dosing pump provides a required supply of pressurized fluid, to be called hereafter as process fluid, to an injection point against varying gas or liquid pressures. By eliminating the use of elastomeric sealing, the failing of the pump due to seal wear is eliminated. An internal pressure relief valve protects the pump mechanicals from premature failure. Use of a spring assisted suction assists positive suction for very accurate dosing. The working fluid is a driver fluid that is used to lubricate working components of the pump. The angled ports minimize friction losses to further improve pump efficiency and also eliminate building up of air pockets.

Abstract: A piston including a crown and a skirt extending generally axially away from the crown. The skirt includes a pair of opposed skirt panel portions and a band spaced away from the crown and extending generally around a perimeter of the piston. The piston further includes a pair of strut assemblies, each strut assembly including a pair of struts which converge in a radially outward direction. Each strut terminates at or adjacent to one of the panel portions.

Abstract: A crossover protection system including a product transport vehicle having a tank compartment for containing a liquid product, a fluid property sensor positioned to contact liquid product stored in the tank compartment, a system controller, and a valve coupled to the tank compartment. The valve regulates a flow of liquid product from the tank compartment and has a normally locked state. The system controller may compare a received transported liquid type signal from the fuel property sensor indicative of the type of liquid product in the tank compartment and compare the type of liquid product to a stored liquid product type. If the two types match, the crossover protection controller transitions the valve to an unlocked state to allow the liquid product to unload from the tank compartment. If the two types do not match, the crossover protection controller will disable the valve from transitioning to the unlocked state.

Abstract: A nozzle for dispensing fluid including a nozzle body having a fluid path through which fluid to be dispensed is configured to flow. The nozzle includes a main fluid valve positioned in the fluid path to control the flow of fluid therethrough, and a secondary fluid valve positioned in the fluid path to control the flow of fluid therethrough. The secondary fluid valve includes a secondary valve body and a secondary valve seat, the secondary valve body being movable between a closed position, wherein the secondary valve body sealingly engages the secondary valve seat, and an open position wherein the secondary valve body is spaced away from the secondary valve seat. The nozzle further includes an actuator operatively coupled to the main and secondary fluid valves. The actuator and main and secondary fluid valves are configured such that initial actuation of the actuator opens only the secondary fluid valve and not the main fluid valve.

Abstract: A connector to secure to the end of a cylindrical rod to transfer and distribute stress uniformly from the connector to the rod with a recess to cooperate with a retrieval tool to allow recovery of fractured rod strings or broken connectors. The connector includes an elongated body having a receptacle with a cylindrical wall, a top end and a recess where the recess is adjacent to the top end. A plurality of axially aligned tapered annuluses, coaxial with the receptacle, extends from the cylindrical wall into the body. Each annulus has a cross-section that is radially arcuate with one end tangentially approaching the cylindrical wall and the other end arcuately approaching the cylindrical wall.

Abstract: A fluid flow controlling system for controlling the flow of fluid from a tank having an exterior surface is provided. The system includes an angle valve and a check valve. The angle valve is coupled to the tank and located substantially on an outer side of the exterior surface. The angle valve includes a spindle, a valve seat and a valve seal. The spindle, valve seat and valve seal are located on an inner side of the exterior surface. The check valve is coupled to the tank and located substantially on the inner side of the exterior surface. The check valve is movable between a closed state and an open state by the spindle.

Abstract: The toggle lever clamp has a clamp housing coupled with a cylinder assembly. A piston assembly is movable within the cylinder assembly. A rod is coupled with the piston assembly. The rod extends into a cavity within the clamp housing. A toggle lever assembly is coupled at one end of the rod inside of the clamp housing. A sensor assembly is coupled with the clamp housing. The sensor assembly includes a pair of sensors or switches spaced from each other and positioned on a mounting plate. The mounting plate is slidably secured within the clamp housing. A sensor pickup is movably positioned on the rod so that the sensor pickup is multi-positionable on the rod to adjust the stroke of the toggle lever assembly.

Abstract: An electrical gripper has a housing and a solenoid plunger. A pair of jaws are movably mounted with the housing. The jaws are movable towards and away from each other. The jaws are coupled with the solenoid plunger to provide movement to the jaws. A first mechanism is associated with the solenoid plunger to lock the solenoid plunger in a first position when power is terminated to the solenoid plunger. A second mechanism is associated with the solenoid plunger to lock the solenoid plunger in a second position when power is terminated to the solenoid plunger. Thus, the jaws are actively locked in an open or close position when power is terminated to the solenoid plunger.

Abstract: The present invention is a tubing centralizer for use within casing within a wellbore. The tubing centralizer has a tubing centralizer cage comprising a top ring, a middle ring, and a bottom ring and a plurality of springs, where each spring connects the top ring to the middle ring and the middle ring to the bottom ring and where each spring has a double arcuate shape such that the springs arc radially outward between the top ring and the middle ring and again between the middle ring and the bottom ring. The springs may be sized such that they exert outward pressure against the inside wall of the casing such that the tubing centralizer resists movement along the casing. The tubing centralizer may further comprise a tubing centralizer mandrel, where the tubing centralizer mandrel is part of the tubing string and extends through the tubing centralizer cage.

Abstract: A spill containment apparatus includes a container adapted to be coupled to an end of a riser pipe of a storage tank and having a proximal end and a distal end. A tubular socket is formed in the container adjacent its distal end for receiving the riser pipe therein. The socket includes a securing mechanism for securing the container to the riser pipe, wherein the securing mechanism is spaced proximally of the distal end of the container to define the socket. The socket is configured to allow the riser pipe to support and balance the container during coupling of the container to the riser pipe.

Abstract: A connecting element has a base (1) with a first interface (2), to connect to a robot, and a plurality of second interfaces (3), to connect to clamping frame elements. The base (1) with its interfaces (2, 3) is formed from a fibre-plastic composite material.