41 results about "Ball Catcher" patented technology

A service tool string (34) is releasably attached to a bottom hole assembly (18) and forms a production string as well as a work string. The tool (35) has a mandrel (102) and a slide valve assembly (68) mounted on the mandrel for relative sliding movement. Crossover ports (114, 124) are provided in the mandrel (102) and the slide valve assembly (68). Slide valve assembly (68) moves by gravity and spring action when not contacted by the bottom hole assembly (18) to a position in which ports (114, 124) are blocked as shown in FIG. 7B. Upon contact of slidable valve assembly (68) with the bottom hole assembly (18), slide valve assembly is moved upwardly for alignment of ports (114, 124) as shown in FIGS. 5B and 6B. An equalizing valve (29) as shown in FIGS. 10-12 is effective to equalize the fluid pressure within the bottom hole assembly (18) with the fluid pressure outside the perforated casing section (23) so that in a reverse position as shown in FIG. 7B, the service tool (35) can be lifted to a position above the upper packer assembly (26) and above the bottom hole assembly (18). A diverter ball (132) seated on a ball catcher (134) is effective to divert the fracturing fluid outwardly through crossover ports (114, 124) as shown in FIG. 6B for downward flow through the annulus (27) into the formation adjacent the perforated casing section (23).

A drop ball catcher apparatus for use with downhole tools in oil well drilling and installation operations. A drop ball catcher apparatus is used to receive and stow a drop ball ejected from a ball-actuated downhole tool.

Following the treatment of formations surrounding an oil, gas or water well, various diameter ceramic balls are retrieved from the downhole equipment by creating a suction force at the earth's surface to cause such balls to be moved into a ball catcher at the earth's surface from which the balls can be collected. The suction force is created by a high pressure fluid intersecting a fluid path between the downhole equipment and the ball catcher. The high pressure fluid is preferably operated at, at least 1,000 psi, and even more preferably, between 5,000 and 10,000 psi.

A ball catcher is designed to stop balls that are the same size or different sizes at an inlet on a seat that is connected to a movable biased sleeve. Once the ball or other shaped object lands at the seat the flow around it increases differential pressure on the seat and sleeve and displaces them against the bias. The ball goes into a surrounding annular space and cannot exit. A preferably spiral sleeve guide the movement of the balls in the annular space so that efficient use of the annular space is made to maximize the number of balls that can be captured per unit length of the annular space. As soon as the ball enters the annular space the sleeve shifts back to the original position to stop the next ball at the inlet. Once in the annular space, the balls cannot escape if there is a flow reversal. The central passage remains open to pass other tools and flow.

The invention relates to a ball-park ball receiving device, in particular to a ball-park automatic ball receiving device. The ball-park automatic ball receiving device comprises an image pickup module, a processing module, a control module and a ball receiving device body. The image pickup module is used for shooting a ball park and transmitting a shot image to the processing module. The processing module is used for calculating the direction and the route required by the ball receiving device body for ball receiving and sending a calculation result to the control module. The control module controls the ball receiving device body to move towards fall points of balls according to the calculation result. The ball-park automatic ball receiving device has the advantages of being compact in structure, flexible in motion, stable and reliable and can meet the general demand of the ball park.

The invention discloses a holding structure for tin ball catcher of connector, which comprises: an insulation base with barrier wall, a plurality of terminals with horizontal tin ball catch hole of open-cone shape on welding part, and multiple tin balls with part located by catch hole and limited by opposite barrier wall and up-and-down slide properly. Wherein, the hole diameter of catch hole is larger a little than the outside diameter of tin ball to catch the ball with a little loose; when welding the connector and circuit board, all tin balls slide up-and-down along contacted board surface to regulate contact evenly and achieve optimal welding effect.

The invention discloses a badminton ball serving and receiving machine which includes a moving platform, a ball arranging and feeding device mounted on the moving platform, a ball serving device and acontroller. The ball arranging and feeding device comprises a ball catcher, a bracket, two vertical guide plates, two baffles, a ball picking mechanism, two squeezing rollers, and a conveyor belt, wherein the ball catcher is mounted on the top of the bracket, the vertical guide plates are opposite to each other and mounted at the bottom of the ball catcher, and a ball falling passage whose upperend inlet is connected with the lower end outlet of the ball catcher is formed between the two vertical guide plates, and the width of the ball falling passage is between the diameter of the tail of the badminton ball and the height of the badminton ball. The ball picking mechanism is mounted on the outer side of the baffles and includes a ball picking motor and a ball picking pole. The ball picking motor is fixed on the outer side of the baffles, and the ball picking pole is mounted on the ball picking motor. Vertical holes are formed in the baffles at positions corresponding to the ball picking pole. The ball picking pole can swing up and reset when driven by the ball picking motor. The badminton ball serving and receiving machine has the advantages of high ball arranging efficiency, stable and reliable operation and low energy consumption.

The invention discloses a while-drilling reamer for drilling and an operation method. The while-drilling reamer comprises an upper connector, a supporting pipe assembly, an upper piston outer pipe, anupper piston, a movable blade wing mechanism, a lower piston, a locking mechanism, a ball catcher and a lower connector; the supporting pipe assembly comprises a supporting outer pipe and a supporting inner pipe arranged in a second spring supporting outer pipe in a sliding mode; the movable blade wing mechanism comprises a drill bit blade wing and a connecting rod; the locking mechanism comprises a limiting outer pipe, a bayonet lock, a first spring and a threaded cap; one end of a second spring limiting outer pipe is connected with one end of the second spring supporting outer pipe, and theother end of the second spring limiting outer pipe is connected with a second spring lower connector; and a clamping groove matched with a second spring bayonet lock is formed in a piston rod of a second spring lower piston. The while-drilling reamer is used for expanding a specific stratum in a borehole in drilling, performing workover treatment after well completion or expanding a reservoir ofa production well, and the like, and needs to perform well bore structure transformation.

The invention provides a novel ball catcher for table tennis, wherein high balls hit from a table tennis table can be intercepted. The ball catcher for the high ball of table tennis comprises an intercepting net rack and an intercepting net arranged on the intercepting net rack. A collecting table is arranged below the intercepting net, the frame of the collecting table is connected with the periphery on the lower part of the intercepting net, and a bracket is arranged on the intercepting net rack. The bracket consists of a cross beam and a connecting beam. The cross beam is fixedly installed on the connecting beam, the high ball intercepting net is overlapped on the cross beam and droops from the front and rear sides of the cross beam, respectively, and the rear length of the high ball intercepting net is greater than the front length of the high ball intercepting net.

The invention discloses a novel basketball collecting and serving device, including a housing, a ball catcher, a service mechanism, a ball-feeding mechanism and a control panel. The top of the shell is provided with a first accommodating groove and a second accommodating groove, A ball receiving device is embedded and installed in the first receiving groove, the ball receiving device comprises anouter frame, hook, the outer frame is composed of an L-shaped flexible sleeve and a circular ring sleeve, At that top of the shell face the first accommodating groove, an out frame is fixed, A circular ring sleeve is fixed in the shell at the communication part of the first accommodating groove and the second accommodating groove, The two ends of the L-shaped flexible sleeve are fixedly connectedwith the ring sleeve and the outer frame respectively. The basketball collecting and serving device is used with the existing basketball frame to hang the hook on the basketball frame. When the basketball is scored, the basketball enters the receiving device and reaches the serving mechanism through the transportation of the ball feeding mechanism, thereby reducing the frequency of picking up theball. Through the adjustment of the angle and inclination of the service mechanism, it can meet the service needs of different positions.

The invention discloses a wastewater treatment system with an automatic cleaning structure, which comprises a wastewater storage tank, a concentrated water tank, a concentrate storage tank, a first filter, a circulation pump, a UF membrane filtration zone, a treatment tank, a cleaning tank and a controller, wherein the concentrated water tank is connected to the concentrate storage tank and the first filter through a concentrate drain pipe at the bottom, the first filter, the circulation pump, the UF membrane filtration zone and the condensed water tank constitute a filtration cycle, and the cleaning tank, the circulation pump and the UF membrane filtration zone constitute a cleaning cycle; the UF membrane filtration zone comprises a flow control valve, a first flow tube, a second flow tube and a plurality of UF membrane modules, and cleaning ball catchers are arranged between the first flow tube and the UF membrane modules and between the UF membrane modules and the second flow tube.The wastewater treatment system can greatly reduce the amount of waste liquid and reduce the disposal cost of industrial waste, cleaning balls clean impurities on the inner walls of tubular UF membranes in a reciprocating manner to reduce the frequency of chemical cleaning and prolong the service life of the UF membranes, and the wastewater treatment system is under fully automatic control and isof low energy consumption.

The present invention provides a wellhead large-drift diameter continuous ball catcher, comprising a cylindrical pipe section. A wellhead pipeline is connected to the right side of the pipe section. The pipe section tilts downwards by 10 to 15 degrees in a vertical direction of the wellhead pipeline. A safety plug valve, an isolating plug valve and a ball collecting plug valve are orderly disposed on the pipe section from right to left. A screen pipe is disposed within the pipe section between the safety plug valve and the isolating plug valve, and a plurality of overflowing holes are formed in the surface of the screen pipe. A left side of the ball collecting plug valve is connected to a discharge pipeline. An open flow pipeline is connected to the pipe section in the middle of the screen pipe. The wellhead large-drift diameter continuous ball catcher overcomes the defects in the prior art, and is reliable in principle, and simple in structure; the ball catching method is feasible; continuous and efficient tripping ball collection can be achieved, and the safety production requirements of oil and gas fields are met; and powerful guarantee is provided for smooth construction of multi-stage ball sealer staged fracturing.

The invention discloses a teamwork ball catcher net which is made of fiber fabric. A planar net is formed by sewing a frame, longitudinal strips, transverse strips and handles. The longitudinal strips and the transverse strips are cloth strips in equal width of 15mm-30mm. The longitudinal strips and the transverse strips are sewn in staggered manner to form a group of rectangular meshes at equal intervals of 30mm-50mm. The longitudinal strips and the transverse strips are 5mm-10mm narrower than the frame. Two ends of each of the longitudinal strips and the transverse strips are connected with corresponding inner edges of the frame by sewing. The outer frame is 0.3m<2>-0.6m<2> in plane area. Two to four handle rings are evenly connected to the outer edge of the frame by sewing. Each child of a children group involving in playing the teamwork ball catcher net holds and pulls one handle ring respectively and spreads the teamwork ball catcher net to catch small rubber balls thrown out by a teacher, and the group of children who catch the most small rubber balls wins. Playing the teamwork ball catcher net can improve children's ability of coordinating with playmates, and children's team spirit and group honor sense can be effectively cultivated.

The invention discloses a cleaning device for an air compressor cooling system. The device mainly comprises a power water pump, a first-class ball serving machine, a second-class ball serving machineand a ball catcher. The output end of the power water pump is provided with a ball serving power pipe in a communicating mode, and the other end of the ball serving power pipe is connected to the first-class ball serving machine and the second-class ball serving machine. The first-class ball serving machine and the second-class ball serving machine are connected with collecting pipes, and the other ends of the collecting pipes correspondingly communicate with an air compression cooling pipe and an oil compression cooling pipe repectively. The other end of the air compression cooling pipe and the other end of the oil compression cooling pipe are connected to the ball catcher. The cleaning device for the air compressor cooling system has the beneficial effects that two ball serving machinesare arranged, double ball serving through one power source is designed, rubber balls with two pipe diameters enter the two ball serving machines respectively, the air compression cooling pipe and theoil compression cooling pipe are arranged in parallel and move in cooperation with the rubber balls cleaned by the air compression cooling pipe and the oil compression cooling pipe, and thus the cleaning independence is guaranteed; and the same ball catcher collects returned balls, and thus the cleaning effect of a cooler is guaranteed.

The invention discloses a golf ball management system which comprises a ball tank, a ball washing machine, a ball storage case, a ball tank lifter and an air-blowing ball conveyer. The perfect and flexible golf ball management system satisfies the requirements of golf courses of various types. A ball picker picks up used golf balls in an entire golf course and gathers the golf balls into the ball tank. A slope is arranged in the ball tank, and the golf balls on the bottom of the ball tank are sent to the ball washing machine through the ball tank lifter. The golf balls, after being cleaned, are sent to the ball storage case through the air-blowing ball conveyer. In each operation circle, golf balls in the remote positions can be conveyed to a ball catcher/dispenser. The golf ball management system is highly elastic and can rapidly and reliably fill golf balls in one or more ball catcher. The golf ball management system maximally lowers labor intensity, isolates ball washing area from other areas of a training course, and maintains the high effectiveness, cleaning level and safety degree of the training course.

The invention provides an auxiliary device used for basket shooting training, and in particular relates to the technical field of basketball sports goods. The auxiliary device is composed of mountingboxes, ball catchers, collision position detectors, a locator and a controller, wherein the ball catchers are mounted on the mounting boxes, and move on the top faces of the mounting boxes under the driving of motors inside the mounting boxes, when a basketball has collision with a basket, the corresponding collision position detector sends the collision position to the controller, the controllerdetermines the moving track before the basketball has collision by combining with the position of a trainee determined by the locater, then the rebounding direction of the basketball is determined bycombining with the position of the collision point on the basket, finally, the ball catcher on the mounting box corresponding to the rebounding direction is controlled to move, and thus the basketballis caught. The auxiliary device provided by the invention can rapidly and accurately catch the rebounding basketball having collision with the basket, the basketball can be automatically caught underany condition, the manual running for picking up the basketball is not needed, therefore, the physical power of the trainee is saved, and the training effect is promoted.

The invention relates to a fracturing wellhead ball catcher and solves the defects that after a ball injection sliding sleeve in formation-shift fracturing of an existing oil and gas well is operated for production, a fracturing ball is left in a shaft, the inner bore of the sliding sleeve is smaller, the fracturing ball cannot return to the ground, and drilling off the fracturing ball is very difficult. One end of a main pipe of a main tee is fixedly connected with a fracturing tree connector, and the other end of the main tube is fixedly connected with a relief pipeline connector. The end of a branch pipe of the main tee is fixedly connected with a catching sleeve, and a locking cap is fixedly mounted at the other end of the catching sleeve. A pressure gauge is fixedly mounted on the main pipe of the main tee. An inner hole of one end of the main tee, provided with the fracturing tree connector, is provided with an inner projection, and a ball baffle is mounted between the inner projection and the fracturing tree connector. The ball baffle is provided with an axial guide hole. The fracturing wellhead ball catcher has the advantages that the catcher is reasonable in structure, simple to operate, high in compatibility and friendly to other constructions; the ball baffle is used to cut off the flow, the fracturing ball falls down under the action of self-weight, and accordingly fracturing wellhead ball catching is achieved.

A ball seat is integrated with a movable biased sleeve. Sleeve movement against its bias moves a diverter from a position outside the through passage to a position across the main passage such that any balls that drop down will be directed by the diverter into an annular retention volume. In treatment of the formation for fluid loss the movement of a seat with the seated ball opens lateral ports for delivery of sealing material and moves the diverter. Smaller balls are then introduced to close lateral ports above the seated ball so pressure can be built to shift the sleeve and extrude the first ball. Once the seated ball blows through, the smaller balls come through the seat and are all diverted to an annular capture volume. The device is resettable for multiple operations. Fluid flow cessation closes lateral ports and opens a through passage retracting the diverter.