113results about How to "Improve carry" patented technology

To provide a golf club head in which a sole portion has a high rigidity. A weight material is mounted near a central part of the sole portion in the fore-to-aft direction, and a rib extends in the toe-to-heel direction. Since the sole portion has high rigidity in the toe-to-heel direction, there is less deformation of the head in the toe-to-heel direction when hitting the ball, thereby suppressing the vibration of the sole portion. An elastic body is filled in a recess portion and closely contacted with the weight material, whereby the vibration of the sole portion is absorbed by the elastic body.

A golf club head has a face portion, a crown portion, a sole portion, a side portion and a hosel portion. Each portion is made of titanium or a titanium alloy. The side portion is formed integrally entirely from its toe side to its back side and its heel side. The side portion and the hosel portion are cast integrally. The face portion, the crown portion and the sole portion are molded separately from one another. The face portion, the crown portion, the sole portion and the side portion are welded integrally so as to form a golf club head. The Young's modulus of the crown portion is lower than any Young's modulus of the face portion, the sole portion, the side portion and the hosel portion.

The present invention is directed toward a bottle handle that is separately formed and subsequently affixed to the neck of a bottle by threading, or snap fitting the handle onto the bottle neck, or by securing thereto during a blow mold operation of the bottle. The preferred handle includes a neck portion and a finger portion that comprise two generally perpendicularly oriented, substantially circular rings that are offset from one another in an approximately tangential relationship. Protuberances and concave finger indents on the finger portion enable a user's finger to provide extra support when handling a bottle affixed with the bottle handle.

A golf ball composed of an elastic solid core and a resin cover enclosing said core and having a number of dimples in the surface thereof, which is characterized in that said elastic solid core has resilience such that the deformation is 3.0 to 5.0 mm when the load is increased from 98 N (10 kgf) to 1275 N (130 kgf), said cover has a gage of 1.2 to 2.1 mm and a Shore D hardness of 60 to 75, and said dimples are formed in two or more different patterns, with their number amounting to 250 to 370. This golf ball is superior in flight performance.

A metal hollow golf club head includes a head main body, a top plate, and a face plate. The head main body includes both side edges and a rear edge of the crown portion, both side edges of a face portion, and a side portion integrally. The top plate includes a crown main portion, which is other member of the crown portion than the both side edges and rear edge of the crown portion, and an upper edge of the face portion integrally. The face plate includes a face main portion, which is other member of the face portion than the both side edges and upper edge of the face portion. The head main body, the top plate, and the face plate are coupled. Metal material of the top plate has longitudinal elastic modulus lower than metal materials of the head main body and face plate.

The invention discloses a drag reducer for slickwater fracturing on unconventional oil and gas reservoirs and a preparation method of the drag reducer, and belongs to the technical field of chemicals for the petroleum industry. The drag reducer for slickwater fracturing on the unconventional oil and gas reservoirs comprises components in percentage by mass as follows: 45%-65% of polyacrylamide, 10%-12% of potassium oleate, 5%-7% of hydroxypropyl oleamide betaine, 3%-5% of sorbitol polyoxylethylene ether, 3%-5% of nonyl phenol polyoxyethylene ether, 2% of a discharge aiding agent and the balance of 15# white oil. The slickwater drag reducer has higher drag reduction property and system stability, and the fluid flow velocity change gradient is reduced through synergism of a polymer and a viscoelastic surfactant to realize the drag reduction action; and besides, the polymer molecular weight is smaller, a molecular film is prevented from forming and blocking rock pores, the surface/interfacial tension of oil and water can be reduced with adding of the surfactant, fracturing backflow can be facilitated, the nitrogen lift effect after fracturing can be increased, and permanent harm of slickwater to the reservoirs is effectively reduced.

A golf ball has an increased surface occupancy ratio of dimples, the dimples are shallow to restrain a lift acting on the golf ball flying in a high-speed region after the ball has been hit, and the lift of the golf ball flying in a low-speed region in the latter half of the trajectory is maintained for a long time, by which a longer carry can be obtained. The golf ball has plural dimples formed on the surface thereof, in which at least about 10 percent of dimples of all the dimples on the surface are noncircular dimples in which a boundary line between a land part and the dimple include a curved line part and a straight line part, and the noncircular dimples each have a flat bottom surface.

The invention discloses a portable electronic camber angle measuring device which comprises a shell body, wherein the shell body is connected with a measuring basis board, a camber angle sensor and a control display circuit device of the camber angle sensor are connected and fixed on the measuring basis board, a connecting shaft is connected and fixed on the shell body, the connecting shaft is connected with a shaft support, the shaft support is connected with a guide rod, one end of the guide rod is fixedly connected with a first rim lock jaw structure, a movable second rim claw structure is connected on the guide rod, and the second rim claw structure is connected with a moving adjusting mechanism. The portable electronic camber angle measuring device has the advantages that a technician can accurately and rapidly measure a camber angle of a car independent of a large four-wheel aligner of a 4S store when surveying to other places; the portable electronic camber angle measuring device further has the advantages of being convenient to carry, high in detection precision, suitable for inspection of tires different in size, convenient to use, short in response time and the like, and an output mode is liquid crystal display.

The invention relates to a portable far infrared low-voltage electric heating magnet therapy and traditional Chinese medicine physical therapy band. The therapy band mainly comprises a low-voltage power supply battery, a permanent magnet sheet, a high-energy electric heating material which can radiate 4-14 micrometer far infrared rays, and a traditional Chinese medicine dressing bag, wherein the permanent magnet sheet and the high-energy electric heating material are fixedly arranged a girdle which is made of an elastic sports textile fabric, the traditional Chinese medicine dressing bag is detachably arranged on the girdle and the power supply battery is electrically connected with the high-energy electric heating material to supply electric energy to the therapy band. After the therapy band is electrified, heat and far infrared rays can be produced, wherein the far infrared rays can harmoniously resonate with body tissues, the produced heat can heat the traditional Chinese medicine dressing bag to enable liquid medicine in the traditional Chinese medicine dressing bag to be evaporated and guided into a human body, and the permanent magnet sheet can act on the human body through the magnetic field effect and have an effect on micro-current and charge particles in the human body. Therefore, the product provided by the invention has quadruple curative effects, i.e. thermal therapy, magnet therapy, far infrared physical therapy and traditional Chinese medicine fumigation.