30results about How to "Slow down the spin rate" patented technology

A metal wood golf club head is provided having a front face with an impact zone including a compliant area. Preferably, the compliant area is disposed in an upper portion of the front face. Preferably, a through-slit is provided in the front face to form the compliant area. The through-slit may be an elongated slot substantially parallel to a top of the front face and may include an elastomeric reinforcement. The compliant area creates an ultra-low center of gravity relative to the geometric face center, resulting in higher launch angles and spin rate ratios. The compliant area upwardly shifts the coefficient of restitution to the geometric center of the face and thereby increases the carry distance of a golf ball hit off the club head.

The present invention is directed towards a multi-layered core golf ball that comprises a thermoplastic inner casing layer molded between two polybutadiene core layers to create a faster golf ball with less spin, by designing a ball that has more of the stored energy of the core released at impact. One inner casing layer and/or an outer core layer is comprised of a partially or fully neutralized ionomer.

The present invention provides a golf ball comprising a golf ball body with a spherical core having one or more layers, an intermediate layer disposed outside the spherical core and a cover disposed outside the intermediate layer and a paint film formed on a surface of the golf ball body, and having a friction coefficient calculated using a contact force tester of 0.35 or more and 0.60 or less, wherein the golf ball body has specific plurality of dimples on the surface thereof, at least one layer of the spherical core is a rubber layer having a specific hardness distribution, and the rubber layer has a hardness at the outermost point which is greater than a hardness at the innermost point, and the intermediate layer has a slab hardness (Hm) which is greater than a slab hardness (Hc) of the cover.

An object of the present invention is to provide a golf ball traveling a great flight distance on driver shots. The present invention provides a golf ball comprising a spherical core and at least one cover layer covering the spherical core, wherein the spherical core is formed from a rubber composition containing (a) base rubber, (b) an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, (c) a crosslinking initiator, (d) a carboxylic acid having 1 to 14 carbon atoms and/or a salt thereof, and (e) a halogen-substituted thiophenol and/or a metal salt thereof as an organic sulfur compound, provided that the rubber composition further contains (f) a metal compound in the case of containing only (b) the α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms as the co-crosslinking agent.

The invention discloses a drilling in-situ testing device for testing the mechanical parameters of an engineering rock mass and a use method of the drilling in-situ testing device. The device comprises a penetration sounding loading system, a multi-point testing rotational positioning system, a propelling support system, a hydraulic loading system and a control system. The penetration sounding loading system and the multi-point testing rotational positioning system are connected together through a bearing and can move along with a propelling lever of the propelling support system, and finally,the whole device is regulated and controlled through the hydraulic loading system and the control system. The device and the method drill and load and test the engineering rock mass in situ, the deformation and fracture characteristics of the rock mass having different lithological characters and different drilling depths and the load-displacement curve and data of a surrounding rock in the loading process are acquired, the relevant technical indexes and parameters are obtained through conversion, the device and the method are favorable for accurately simulating the numerical value and effectively designing the supporting scheme in the construction process, the supporting strength and the engineering strength are guaranteed, and the guarantee is provided for the safety construction of theengineering like rock and soil, water resources and hydropower, and mines.

The invention provides a diamino polyethylene glycol modified paramagnetic metal complex magnetic resonance imaging contrast agent, and aims at solving the problems of low relaxation rate, high toxicity and large dosage of a contrast agent in the prior art. The contrast agent is prepared by the following steps: reacting 1,4,7,10-tetrazacyclododecane-1,4,7,10-tetraacetic acid compound with diaminopolyethylene glycol with different molecular weights; preparing a macromolecular ligand through an amidation reaction; and forming a paramagnetic metal complex with paramagnetic metal elements Sc, Ti, V, Mn, Cu, Mo, Ru, Fe or positive trivalent or divalent ion of lanthanide rare-earth elements. The contrast agent has the advantages of high stability, water solubility, relaxation rate and small dosage.

The present invention provides a multi-piece solid golf ball having a core obtained by molding under heat a specific rubber composition and having a cover of at least three layers which is composed of a thermoplastic resin material and encases the core. By optimizing the deflection of the core under a specific load, optimizing the hardness at the center of the core and the hardnesses of the innermost cover layer, outermost cover layer and intermediate cover layer, setting the combined thickness of the cover layers to at least a specific value, and forming the innermost cover layer of a highly neutralized ionomer resin composition, the spin rate of the ball on shots taken with a driver can be significantly reduced, enabling the distance traveled by the ball to be increased. Moreover, the ball has a good feel on shots with a driver.

The invention provides a golf ball having a core, at least one intermediate layer encasing the core, and a cover. The intermediate layer is formed primarily of a specific ionomer resin composition that is highly neutralized. The cover is formed by injection molding a single resin blend composed primarily of a thermoplastic polyurethane and (g) a polyisocyanate compound in at least some portion of which all the isocyanate groups on the molecule are present in an unreacted state. The golf ball of the invention has a low spin rate on shots with a driver, enabling it to travel a good distance, and achieves a sufficient spin rate on shots with a short iron such as a wedge. The ball also has an excellent scuff resistance.

A chemical vapor deposition reactor and method. Reactive gases, such as gases including a Group III metal source and a Group V metal source, are introduced into a rotating-disc reactor and directed downwardly onto a wafer carrier and substrates which are maintained at an elevated substrate temperature, typically above about 400° C. and normally about 700-1100° C. to deposit a compound such as a III-V semiconductor. The gases are introduced into the reactor at an inlet temperature desirably above about 75° C. and most preferably about 100°-250° C. The walls of the reactor may be at a temperature close to the inlet temperature. Use of an elevated inlet temperature allows the use of a lower rate of rotation of the wafer carrier, a higher operating pressure, lower flow rate, or some combination of these.

The invention relates to a device for detecting the inclination angle and flatness of a conical surface of a diaphragm spring. The device comprises a bracket, a horizontal position adjusting mechanism, a first lifting mechanism, a second lifting mechanism, a rotating mechanism, conveying lines, a bearing table, a digital display dial indicator, an industrial control computer and a telescopic mechanism, wherein the horizontal position adjusting mechanism is arranged on the bracket; the first lifting mechanism is vertically downwards arranged on the horizontal position adjusting mechanism, and the digital display dial indicator is arranged on the first lifting mechanism; the second lifting mechanism is vertically upwards arranged at the lower portion of the digital display dial indicator, the rotating mechanism is arranged on the second lifting mechanism, the bearing table is detachably arranged on the output shaft of the rotating mechanism, the conveying lines are respectively arrangedat the two sides of the bearing table, each conveying line is connected with the bracket through one telescopic mechanism, and the telescopic direction of the telescopic mechanism is perpendicular tothe conveying direction of the conveying lines. In the whole measuring process, manual participation is not needed, and the detection efficiency is effectively improved.

The invention provides a method of manufacturing a golf ball having a core and a cover of one or more layer over the core, wherein an outermost layer of the cover is molded of a thermoplastic material selected from the group consisting of polyurethane, polyurea and mixtures thereof. The method includes at least the following steps (1) and (2):

• • (1) treating a surface of the cover with an isocyanate compound; and
  • (2) washing off and physically removing excess isocyanate compound by blasting the cover surface with a specific substance at high pressure.

An object of the present invention is to provide a golf ball showing a low spin rate on driver shots and a high spin rate on approach shots. The present invention provides a multi-piece golf ball comprising a center and n (n is a natural number of 3 or more) envelope layers covering the center, wherein material hardness of the envelop layers satisfies H2<H0<Hn−1; where the envelope layers formed in order from the center side are referred to as a first envelope layer, a second envelope layer, a third envelope layer, a fourth envelope layer, . . . an n−1th envelope layer and an nth envelope layer (the outmost layer), respectively and H0 is a material hardness (Shore D hardness) of the center, and H1, H2, H3, H4, . . . Hn−1 and Hn are material hardness (Shore D hardness) of the first envelope layer, the second envelope layer, the third envelope layer, the fourth envelope layer, . . . the n−1th envelope layer and the nth envelope layer (the outmost layer), respectively; and the center is formed from a thermoplastic resin composition, and the second envelope layer is formed from a thermoplastic resin composition or a rubber composition.

Golf ball having a core and a cover of one or more layers, the core being formed of a material molded under heat from a rubber composition including a base rubber, an organic peroxide, and water and/or a metal monocarboxylate. Defining the tan δ slope as (tan δ₁₀−tan δ₁)/(10%−1%), where tan δ₁ and tan δ₁₀ are the loss tangents at dynamic strains of, respectively, 1% and 10% when the loss tangents of the core center and the core surface are measured at −12° C. and 15 Hz, the difference between the tan δ slopes at the core surface and the core center is larger than 0.002. Because a core material which undergoes little decrease in resilience over time and experiences little energy loss can be obtained, the golf ball maintains a good rebound, has a reduced spin rate and thus is able to achieve an increased distance.

The invention provides equipment for processing a disc-shaped suspension porcelain insulator, and relates to the technical field of insulator processing. The equipment comprises a base, stirring mills are arranged on the front side and the rear side of the top of the left end of the base correspondingly, and each stirring mill comprises a material grinding tank, a first motor, a rotating shaft, a first gear, a cross, a second gear, a gear ring, a dredging plate, an annular groove, a slender rod, a sieve plate, a guide rod, a spring and a roller. The material grinding tank is fixedly connected to the top end of the base, the first motor is fixedly connected to the top end of the grinding tank, and the gear ring is rotationally connected to the inner side of the lower portion of the grinding tank and is in meshed connection with the four second gears. The uniformity of the particle size of the insulator is improved through the stirring mill, the stirring mill, the ball mill and the slurry iron removal machine are matched with the vacuum pug mill to degas the pug, the steep wave performance of the porcelain insulator is improved, and the equipment is worthy of being vigorously popularized.

The invention provides a golf ball endowed with an improved distance and durability. The ball has a core and a cover, the core being formed of a rubber composition containing a base rubber, a co-crosslinking agent, a crosslinking initiator and a metal oxide. The base rubber is a mixture of (A) polybutadiene with (B) styrene-butadiene rubber and/or isoprene rubber, the co-crosslinking agent is methacrylic acid, and the metal oxide is zinc oxide. The rubber composition contains the crosslinking initiator in an amount of from 1.2 to 5 parts by weight per 100 parts by weight of the base rubber.

In a multi-piece solid golf ball comprising a solid core, an intermediate layer, and a cover, the intermediate layer has a gage G₁ of 0.8–2 mm and a Shore D hardness of 50–65, the cover has a gage G₂ of 0.5–1.3 mm and a Shore D hardness of 37–53, and the intermediate layer gage G₁ and the cover gage G₂ satisfy [G₁/(G₁+G₂)]×100≧45%. Upon full shots with a driver, the ball gains a reduced spin rate and an increased initial velocity, which lead to an increase in travel distance.

The present invention provides a golf ball capable of achieving a further decrease of the spin rate in the driver shot, and capable of more improving the flight distance, while maintaining high durability. The golf ball 1 of the present invention includes a core located in the center of the golf ball, a cover located outside the core and having a plurality of dimples on the surface thereof, and a metal mesh layer located between the core and the cover, wherein the metal mesh layer has a wire diameter falling within a range from 0.01 to 0.5 mm, and a mesh count falling within a range from 16 to 1000.

The invention discloses a four-axis stamping manipulator which comprises a rack, a grabbing device, a first drive device, a second drive device and a third drive device. The grabbing device is used for grabbing materials and comprises a first mechanical arm, a second mechanical arm capable of moving front and back along the length direction of the first mechanical arm, and a material taking part arranged on the second mechanical arm; the first drive device is used for driving the material taking part to rotate on the second mechanical arm; the second drive device is used for driving the firstmechanical arm to act front and back relative to the second mechanical arm through a conveyor belt; and the third drive device is arranged on the rack and is used for driving the grabbing device to rotate relative to the rack. According to the four-axis stamping manipulator provided by the invention, the second drive device drives the second mechanical arm to act front and back through the conveyor belt, the volume is small, the weight is light, and the volume of the whole manipulator is reduced, so that the volume of the whole equipment is small, less space is occupied, and reasonable arrangement of the space of the whole workshop can be improved.

The invention belongs to the fields of air purification and auto spare parts, and concretely relates to a central ventilation system for a large passenger car. The central ventilation system comprisesan inlet part, an air washing chamber, a plant processing chamber, an outlet part, an atomizing chamber and an adsorption and filtration chamber. The rotary centrifuging air washing chamber part is used to realize high-efficiency contact of outside gas, entering the system at a high speed, with water and purify the gas through the water, vine plants are used to realize the oxygen enrichment of the whole components of the gas and realize the adsorption of possible harmful organic gases, and the outlet part is arranged to respectively discharge dry gas and wet warm gas timely in order to improve the comfortableness inside the passenger car.

In a golf ball having a core and a cover of at least one layer, the outermost layer of the cover is formed of a resin composition that includes (A) 100 parts by weight of a thermoplastic resin, and (B) 1 to 30 parts by weight of a compound having a fluorene skeleton, or a derivative thereof, and the resin composition has a melt flow rate of at least 3.0 g/10 min. This resin composition for golf balls has an improved injection-moldability and thus enables the ball to achieve both a reduced spin rate and a good durability (scuff resistance).

An object of the present invention is to provide a golf ball having a decreased spin rate on driver shots. The present invention provides a golf ball comprising a spherical core and at least one cover layer covering the spherical core, wherein the spherical core is formed from a rubber composition containing (a) a base rubber, (b) two or more α,β-unsaturated carboxylic acids having 3 to 14 carbon atoms and having no substituent group at a carbon atom bonding to the carboxy group, and/or a metal salt thereof, and (c) a crosslinking initiator.