510 results about "Flight distance" patented technology

The present invention provides a multi-piece solid golf ball, which is superior in flight distance, spin performance and shot feel. The present invention relates to a multi-piece solid golf ball comprising a core consisting of a center, an intermediate layer formed on the center and an outer layer formed on the intermediate layer, and a cover covering the core, whereinthe center has a diameter of 10 to 20 mm and a central point hardness in JIS-A hardness of 30 to 85,the intermediate layer has a surface hardness in Shore D hardness of 30 to 55,the outer layer has a hardness in Shore D hardness of 55 to 70, andthe cover has a Shore D hardness of 35 to 55 and a thickness of 0.3 to 1.5 mm.

A ballistic trajectory method for a golf ball is disclosed wherein a ballistic trajectory of a golf ball having a plurality of dimples formed on the surface thereof when the golf ball is hit to fly at an arbitrary number of rotations and an arbitrary initial speed can be estimated and ballistic trajectory and flight characteristics of the golf ball can be evaluated without depending upon experimental evaluation which is based on an actual model thereby to allow a golf ball to be developed efficiently. The ballistic trajectory of the golf ball when the golf ball is hit to fly is estimated by successively calculating the flight distance and the height of the ball after every lapse of a very short period of time after the ball is hit to fly until it drops to the ground making use of arithmetic operation by a computer.

A golf ball is provided that has improved aerodynamic efficiency, resulting in increased flight distance for golfers of all swing speeds, and more particularly for golfers possessing very high swing speeds, such as those who can launch the balls at an initial speed greater than 160 miles per hour and more particularly at initial ball speed of about 170 miles per hour or higher. The golf ball of the present invention combines lower dimple count with multiple dimple sizes to provide higher dimple coverage and improved aerodynamic characteristics.

A golf ball is provided that has improved aerodynamic efficiency, resulting in increased flight distance for golfers of all swing speeds, and more particularly for golfers possessing very high swing speeds, such as those who can launch the balls at an initial speed greater than 160 miles per hour and more particularly at initial ball speed of about 170 miles per hour or higher. The golf ball of the present invention combines lower dimple count with multiple dimple sizes to provide higher dimple coverage and improved aerodynamic characteristics.

A golf ball is provided that has improved aerodynamic efficiency, resulting in increased flight distance for golfers of all swing speeds, and more particularly for golfers possessing very high swing speeds, such as those who can launch the balls at an initial speed greater than 160 miles per hour and more particularly at initial ball speed of about 170 miles per hour or higher. The golf ball of the present invention combines lower dimple count with multiple dimple sizes to provide higher dimple coverage and improved aerodynamic characteristics.

The present invention provides a time of flight mass spectrometer having a spiral flight path, whose mass resolution can be appropriately changed with respect to the analysis object or other factor without any complicated alteration or addition of the mechanical construction. In a specific form of the invention, the mass spectrometer includes deflecting electrodes 20-23 located between semi-cylindrical electrodes 11 and 12 for making ions fly along a spiral path. The deflecting electrodes 20-23 generate deflecting electric fields for shifting the ions in the axial direction of the semi-cylindrical electrodes 11 and 12. The voltage applied to the deflecting electrodes 20-23 is changed according to the mass resolution required. The deflecting electric fields are generated or removed with the change of the voltage, which makes the ions fly either along a spiral path or in the same loop orbit. The flight distance of the ions can be controlled as desired by regulating the voltage so that the ions fly in the loop orbit an appropriate number of times. Thus, the mass resolution can be arbitrarily controlled.

The invention discloses a navigation control method of unmanned aerial vehicle group collaborative work. Each unmanned aerial vehicle determines the respective flight direction and the flight distance according to current position information and target position information; an unmanned aerial vehicle group collaborative task sequence is planned and the corresponding navigation path of each unmanned aerial vehicle is automatically generated according to the flight direction and the flight distance determined by each unmanned aerial vehicle in the unmanned aerial vehicle group; and each unmanned aerial vehicle flies to the target position for performing the work task according to the task sequence and the navigation path. According to the navigation method, the unmanned aerial vehicle group can perform autonomous flight control according to the calculated flight direction and the flight distance and plan the flight path of the whole unmanned aerial vehicle group in advance so that smooth proceeding of collaborative work can be ensured, and performing the more complex work task by using collaborative work between multiple unmanned aerial vehicles can be guaranteed.

A cart is towed behind a combine harvester for collecting corn cobs and includes a conveyer belt feeding into a system for separating cobs from residue to be discharged and a tank for receiving and transporting the cobs. An unload auger is provided from the tank to one side of the cart while the cart moves forward. Power for driving the cart is obtained from a chopper drive of the combine harvester. The separating arrangement includes a suction fan or a single blower fan or a series of blower fans for blowing air through material from a conveyor and into a spreading guide which disperses the residue. The cobs are conveyed using a series of augers where the auger to flight distance is at least 2 inches and particularly a pair of augers feed the cobs through a front wall of the tank so as to push cobs upwardly into the tank.

A cart is towed behind a combine harvester for collecting corn cobs and includes a conveyer belt feeding into a system for separating cobs from residue to be discharged and a tank for receiving and transporting the cobs. An unload auger is provided from the tank to one side of the cart while the cart moves forward. Power for driving the cart is obtained from a chopper drive of the combine harvester. The separating arrangement includes a series of sequential blower fans for blowing air through the discharged material as it is discharged from a conveyor and into a spreading guide disperses the residue. The cobs are conveyed using a series of augers where the auger to flight distance is at least 2 inches and particularly a pair of augers feed the cobs through a front wall of the tank so as to push cobs upwardly into the tank.

The invention discloses a multi-rising-and-landing-point course planning method used for cruising power of a unmanned aircraft, which is characterized by using a rising-and-landing point of the unmanned aircraft as a parameter for planning the track, and dividing a testing zone by combining with the distribution of the rising-and-landing points according to the limitation of the capability of the single flight of the unmanned aircraft. In the invention, the operator of the rotor wing unmanned aircraft can appoint a rising-and-landing point, the course planning system generates an estimation rising-and-landing point and a partitioning course plan of the unmanned aircraft operation capability according to the rising-and-landing points, and the operation scope and the operation parameters which are provided by the operator. The operator can perform checking and adjustment through the generated partitioning course so as to generate a relatively optimized unmanned operation course. Except for reducing the flight distance of the rotor wing unmanned aircraft and improving the working efficiency in the practical operation, and the partitioning course planning can also support the collaborative operation by a plurality of the unmanned aircraft in one test area.

A golf ball is provided with a compression deformation of 2 mm and 4 mm and has a core made from a thermoplastic material, an intermediate layer made from a thermoset material, and at least one cover layer. The COR of the core falls between 0.78 and 0.89 and is higher than that of the whole golf ball. In this way, the golf ball has long flight distance and good hitting feel to fit both of the amateur golfers, whose swing speed is lower, and the low-handicap or professional golfers, whose swing speed is higher.

A golf ball with aerodynamic coefficient magnitude and aerodynamic force angle, resulting in improved flight performance, such as increased carry and flight consistency regardless of ball orientation. In particular, the present invention is directed to a golf ball having increased flight distance as defined by a set of aerodynamic requirements, at particular spin ratios and Reynolds Numbers. The invention is also directed toward golf balls with dimple diameters of greater than 6.5 percent of the ball diameter and dimples with a profile defined by a catenary curve.

An objective of the present invention is to provide a golf ball striking a balance between the flight distance on the driver shots and the approach performance on the approach shots and having the excellent shot feeling and durability. The present invention provides a golf ball comprising a core consisting of a center and a surrounding layer covering the center; at least one intermediate layer covering the core; and a cover covering the intermediate layer; wherein at least one piece or one layer of the intermediate layer is formed from a highly elastic intermediate layer composition that contains (A) a highly elastic resin having a flexural modulus in a range from 700 MPa to 5,000 MPa and (B) an ionomer resin having a flexural modulus in a range from 150 MPa to 1,000 MPa in a content ratio ((A) / (B)) of (A) the highly elastic resin to (B) the ionomer resin (B) being (20 mass % to 80 mass %) / (80 mass % to 20 mass %) (the total is 100 mass %), and wherein a surface hardness (Hm) of the intermediate layer and a surface hardness (Hs) of the core satisfy the equation: Hm≧Hs, and the cover has a slab hardness (Hc) of 45 or less in Shore D hardness.

A cartridge for propelling a pair of wire-tethered contact darts for disabling a remote target with an electrical discharge. The cartridge comprises two bores each having one wire-tethered dart in front of an electrically activated pyrotechnic. A cartridge contains two separated straight bores, which each launch a single dart assemblage with a single primer of standard manufacture. A single 200 large rifle primer can launch a single dart assemblage reasonably accurately to 30 feet from the cartridge. Each assemblage is deflected to a predicted angle of flight when it collides with a center hinged cover as it exits the cartridge. This arrangement allows for longer flight distances and tighter, but still effective, dart spreads throughout the travel.

The present invention is directed to a golf club and golf ball combination that maximizes the distance of travel when the golf club strikes the golf ball. More specifically, a golf club and golf ball combination capable of generating a higher launch angle combined with the lower spin rate to maximize the distance. The golf club in accordance with the present invention may generally have a lower center of gravity, a higher loft angle, or may even have a coating on the club face that optimizes the coefficient of friction between the golf club and the golf ball. The golf ball in accordance with the present invention may generally have a ratio of the coefficient of lift (CL) near the beginning of flight to the coefficient of lift near the end of the flight within a range that maximizes flight distance, with similar ratios in appropriate ranges for the coefficient of drag (CD) and the lift-to-drag ratio (CL / CD).

An object of the present invention is to provide a golf ball having an excellent properties like flight distance and low temperature durability. The present invention provides a golf ball comprising: a core consisting of a center and one or more intermediate layers covering the center; and a cover covering the core, wherein at least one piece or one layer of said intermediate layers is formed from a highly elastic intermediate layer composition that contains (A) a highly elastic polyamide resin having a flexural modulus in a range from 700 MPa to 5,000 MPa; (B) a metal-neutralized product of ethylene-(meth)acrylic acid copolymer and (C) a resin having a polar functional group in a specific way.

The invention provides an intelligent course control method for an unmanned plane. The method comprises the steps that power-on self-test is conducted on the unmanned plane, the course and the GPS coordinates of a takeoff point in a northeast coordinate system are recorded, and the unmanned plane takes off in a common remote control mode; an initial course locking mode or a return flight point locking mode is selected; if the initial course locking mode is selected, the course of the unmanned plane at the takeoff point is used as the initial course, and intelligent course control is achieved under a rectangular coordinate system with the takeoff point as the original point; if the return flight point locking mode is selected, intelligent course control is achieved under polar coordinates with the takeoff point as the polar point. According to the intelligent course control method for the unmanned plane, crashes of the unmanned plane or contact lost accidents caused by misoperation conducted due to the fact that control staff can not judge the current course when being unskilled in operation or the flight distance is too long can be effectively reduced, operation of the unmanned plane can be greatly simplified, and the flight safety of the unmanned plane is improved.

An object of the present invention is to provide a golf ball providing a great distance. Another object of the present invention is to provide a golf ball striking a balance between a flight distance on a driver shot and an approach performance on an approach shot while providing an excellent shot feeling. The present invention provides a golf ball comprising: a center, a cover and at least one intermediate layer disposed between the center and the cover, wherein at least one piece or one layer of the intermediate layer is formed from a high fluidity intermediate layer composition that contains (A) a polyamide resin composition having a flexural modulus in a range from 700 MPa to 4,000 MPa; (B) at least one member selected from the group consisting of an ethylene-(meth)acrylic acid binary copolymer, a metal-neutralized product of the binary copolymer, an ethylene-(meth)acrylic acid-(meth)acrylic acid ester ternary copolymer, and a metal-neutralized product of the ternary copolymer, and (C) a fluidity improving agent.

The present invention provides a time of flight mass spectrometer having a spiral flight path, whose mass resolution can be appropriately changed with respect to the analysis object or other factor without any complicated alteration or addition of the mechanical construction. In a specific form of the invention, the mass spectrometer includes deflecting electrodes 20-23 located between semi-cylindrical electrodes 11 and 12 for making ions fly along a spiral path. The deflecting electrodes 20-23 generate deflecting electric fields for shifting the ions in the axial direction of the semi-cylindrical electrodes 11 and 12. The voltage applied to the deflecting electrodes 20-23 is changed according to the mass resolution required. The deflecting electric fields are generated or removed with the change of the voltage, which makes the ions fly either along a spiral path or in the same loop orbit. The flight distance of the ions can be controlled as desired by regulating the voltage so that the ions fly in the loop orbit an appropriate number of times. Thus, the mass resolution can be arbitrarily controlled.

An accessory for affixmentation to a recreational flying disk is disclosed in the form of a separate apparatus that is readily compatible and adaptable to any flying disk that will greatly enhance the flight distance length and the other flight characteristics of that retrofitted disk because of the centrifugal power, ballast stabilization and lift capability that the disclosed invention apparatus transmutes to the said flying disk. The disclosed apparatus, in conjunction with it being the aforementioned aerodynamic catalyst that it becomes once it is affixed to the said thrown flying disk, also can transform the said disk into a flying disk that can skip across the surface of a body of water not unlike a flat stone used for centuries for the same results—that same body of water that would render an ordinary flying disk as immobile upon contact with it now can be considered as just another obstacle to cross just as easily as flying aerially. The many variations of embodiments that are possible and probable are capable of being manufactured in an inexpensive method or manner such as by plastic molding or injection in and as a lightweight composite, which is a proven material both in the durability and safety factorage in the art of recreational flying disks.

The invention discloses a method for acquiring three-dimensional trajectories of balls. The method comprises the steps: acquiring video images, namely acquiring single video stream image information of ball motion through camera and television video signals; constructing a three-dimensional model, namely constructing a projection transformation matrix between a match standard field model and the video images by taking a ball match standard field as a target; acquiring the three-dimensional information, namely acquiring the three-dimensional information of a moving ball in the standard field model in the match video images through the projection transformation matrix. According to the method, information on the speed, arc and placement of the ball can be acquired from single video streams; according to the method, the three-dimensional trajectories of the balls can be acquired, and technical and tactical parameters, such as stroking speed, bending radian of a three-dimensional trajectory, over-net height, flight distance and placement, of a table tennis ball can be further calculated; analysis on technical and tactical information can help coaches and athletes to improve the technical and tactical level, and thus, the comprehensive competitiveness of ball match events of our country is improved.

The invention provides a spraying control method of a drone. The method comprises steps of acquiring a flight distance from a spraying start point to a termination point in a specific region of the drone; selecting one of following two parameters: the flight speed and the spraying flow speed of the drone; if the flight speed is selected, calculating the spraying flow speed according to total quantity of substances that the drone needs to spray, the selected spraying flow speed and the flight distance; and if the spraying flow speed is selected, calculating the flight speed according to the total quantity of substances that the drone needs to spray, the selected spraying flow speed and the flight distance. According to the invention, problems can be avoided that drugs have been used up while the drone has not finished the crop spraying in a certain region caused by improper flight speed and improper spraying flow speed which are easily caused by the fact that an operator simultaneously sets the flight speed and the spraying flow speed, or too many drugs have been left over since the drone has finished operation in the certain region in advance.

The present invention relates to a utility iron which is characterized in that it has a lie angle of 58 to 64°, a loft angle of 20 to 28°, a head weight of 270 to 300g, and a shaft length of 35 to 38 inches. Thus, the loft angle is relatively reduced so as to prevent a golf ball from being hit high and increasing flight distance. Also, because the lie angle is relatively increased, the possibility of a hook or a slice occurring is reduced. Because the weight of the head is increased, repulsive force is augmented by the striking of the golf ball, which relatively increases the flight distance of the golf ball. Because the length of the shaft is relatively shortened, swing trajectory is reduced, and accurate striking is made easier so as to also increase flight distance.

An object of the present invention is to provide a golf ball striking a good balance between a flight distance on driver shots and a spin rate on approach shots, and excellent in stain resistance and a shot feeling. The present invention provides a golf ball comprising an intermediate layer, a cover, and a paint film, wherein a base resin of the paint film is a polyurethane obtained by a reaction between a polyisocyanate composition and a polyol composition containing a urethane polyol including a polyether diol with a number average molecular weight ranging from 800 to 3000 as a constituent component, and the golf ball satisfies the following requirements;Mp≦200×X−75Mp≦100Mm−Mc>100Tm>Tc>Tp (Tm×Mm) / (Tc×Mc)>7.5(Tc×Mc) / (Tp×Mp)>2.4.[Mp, Mm and Mc represent 10% modulus (kgf / cm2) of the paint film, intermediate layer and cover, respectively; Tp, Tm and Tc represent thicknesses (mm) of the paint film, intermediate layer and cover, respectively; and X represents a molar ratio (NCO / OH) of a NCO group in the polyisocyanate composition to a OH group in the polyol composition.]

The present invention relates to a forged iron head and a golf club having the same. A forged iron head according to the present invention comprises a provisionally-forged member which is shaped like a substantial iron head with an original material; a head is forged the provisionally-forged member as a desired shape and has a face provided a face surface hitting a golf ball, a top and a sole extending to an upper part and a lower part of a rear side of the face, respectively, a heel and a toe disposed between the sole and the top and extending to the rear side of the face, a cavity disposed in the rear side of the face and surrounded by the sole, the top, the heel and the toe and a hosel coupled with a shaft extending from a first side of the face and having a handle part to be gripped by a player; the head comprising a hollow part which has an opening formed from the sole toward a first side of the cavity, further comprising a sole cover which closes the opening. Thus, a lowered centroid may be achieved, and flight distances and direction of a golf ball may improve. Also, credibility of the golf club may improve.