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公开(公告)号:US5820499A
公开(公告)日:1998-10-13
申请号:US638132
申请日:1996-04-26
申请人: Keith Thomas , Dan Thompson
发明人: Keith Thomas , Dan Thompson
CPC分类号: A63B47/002 , A63B2102/16
摘要: A tubular table tennis ball storage and discharge magazine formed with a lateral discharge opening and positioned gravitationally to feed the balls to the opening, the magazine having elastic retainers at the opening to hold the advance ball poised for selection.
摘要翻译: 一种管状乒乓球储存和排放仓,其形成有横向排出口并且重力定位以将球馈送到开口,所述仓在开口处具有弹性保持器以保持提前球准备选择。
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公开(公告)号:US5649700A
公开(公告)日:1997-07-22
申请号:US629530
申请日:1996-04-09
申请人: Jung-Tae Suh , Bum-Kyo Suh
发明人: Jung-Tae Suh , Bum-Kyo Suh
CPC分类号: A47B25/003
摘要: A horizontally-maintained table tennis table which comprises a table tennis table top having two sections, one section being provided with a lateral coupling hole and the other section being provided with a lateral bar, said lateral bar being inserted into the lateral coupling hole to connect the two sections together, locking means for locking the two sections together, level-measuring means provided in the peripheral edges of the table tennis table top, table tennis table legs for supporting the table top, and height-adjusting means provided in the table legs.
摘要翻译: 一种水平保持的乒乓球桌,其包括具有两个部分的乒乓球桌,一个部分设有横向联接孔,另一个部分设有横杆,所述横杆插入到横向联接孔中以连接 两个部分在一起,用于将两个部分锁定在一起的锁定装置,设置在乒乓球台的周边边缘的水平测量装置,用于支撑台面的乒乓球台腿和设置在桌腿中的高度调节装置 。
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公开(公告)号:US5533722A
公开(公告)日:1996-07-09
申请号:US251214
申请日:1994-05-31
申请人: Tzu-Hao Lu
发明人: Tzu-Hao Lu
CPC分类号: A63B69/406 , A63B2047/028 , A63B2069/404 , A63B2102/16
摘要: A table tennis training system including a pitching machine and a cage spaced around the pitching machine at the back, the pitching machine includes a machine base defining a vertical ball channel, a shooting box pivotally mounted on the machine base at the top and defining a storage chamber. A blowing fan is arranged to blow ping-pong balls from the ball channel into the storage chamber. A ball feeding mechanism guides table tennis balls from the storage chamber to a firing position one after another, and a pitching mechanism is moved between a left limit position and a right limit position and controlled to throw the table tennis ball from the firing position. The pitching mechanism includes two rotary members and two unidirectional motors separately controlled to turn the rotary members for driving the table tennis ball from the firing position out of the shooting box.
摘要翻译: 一种乒乓球训练系统,包括俯仰机和围绕俯仰俯仰机间隔开的保持架,俯仰机包括限定垂直球道的机器基座,在顶部枢转地安装在机器基座上并限定存储器 房间。 吹风机布置成将乒乓球从球通道吹入储存室。 球进给机构将乒乓球从储存室引导到打火位置,并且俯仰机构在左极限位置和右限位置之间移动,并被控制以将乒乓球从打火位置抛出。 俯仰机构包括两个旋转构件和两个单向电动机,其分别被控制以将旋转构件转动以将乒乓球从射击位置推出射击箱。
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公开(公告)号:US5489464A
公开(公告)日:1996-02-06
申请号:US229345
申请日:1994-04-18
申请人: Bengt Bjorck
发明人: Bengt Bjorck
CPC分类号: B31D5/0073 , B29C66/004 , B29C66/438 , B65D81/03 , B65D81/052 , B29C65/4815 , B29C65/52 , B29C66/4326 , B29C66/71 , B29L2031/601 , B29L2031/7138 , B29L2031/714 , Y10T156/1082 , Y10T428/2457 , Y10T428/24612 , Y10T428/24661 , Y10T428/24744
摘要: Packaging material for self-supporting packaging container walls includes two material layers that are fixed at a given spacing from one another. The two material layers define an interjacent chamber which is filled with gas under pressure. The material is produced by the material layers being sealed to one another over a portion of their surface such that a chamber is formed which is filled with, for example, air under pressure.
摘要翻译: 用于自支撑包装容器壁的包装材料包括彼此以给定间隔固定的两个材料层。 两个材料层限定了一个在压力下充满气体的中间室。 该材料由材料层在它们的表面的一部分上彼此密封而形成,从而形成一个室,其中填充有例如空气的压力。
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公开(公告)号:US5375837A
公开(公告)日:1994-12-27
申请号:US37299
申请日:1993-03-26
申请人: Philip M. Moreau
发明人: Philip M. Moreau
CPC分类号: A47B25/003
摘要: Table tennis apparatus is disclosed which incorporates a pair of tabletop panel assemblies each of which comprises a pair of subpanels which fold together into a light and compact unit for storage or shipping. The subpanels include support structures which carry a planar layer formed of a flexible material which provides the playing surface. The planar layer bridges across a folding butt joint which separates the subpanels without creating any objectionable undulations or seam along the butt joint when the panels are unfolded into the playing configuration. The apparatus is adapted for converting to a single player configuration in which one of the tabletop panel assemblies is mounted upright to serve as a backstop along a side of the remaining horizontally positioned panel assembly. The components are releasably locked in the different configurations by splines which interfit into keyway recesses formed in the perimeters of the subpanels. The apparatus can be easily assembled and disassembled without the requirement for tools or hardware.
摘要翻译: 公开了一种乒乓球装置,其包括一对桌面面板组件,每个桌面面板组件包括一对折叠在一起以用于存储或运输的轻型和紧凑单元的子面板。 子面板包括支撑结构,其支撑由提供演奏表面的柔性材料形成的平面层。 平面层穿过折叠的对接接头,该对接接头分离子面板,而不会在面板展开到播放配置中时沿着对接接头产生任何令人不快的起伏或接缝。 该装置适于转换成单个播放器配置,其中一个桌面面板组件竖立安装以用作沿着剩余的水平定位的面板组件的一侧的止挡。 这些部件通过与辅助面板周边形成的键槽凹槽相互配合的花键可释放地锁定在不同的构型中。 该设备可以轻松地组装和拆卸,无需工具或硬件。
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公开(公告)号:US5308060A
公开(公告)日:1994-05-03
申请号:US892325
申请日:1992-06-02
申请人: Masao Nakamura , Ichiro Tominaga
发明人: Masao Nakamura , Ichiro Tominaga
CPC分类号: A63B39/06 , Y10T442/56
摘要: A tennis ball having a felt covering which has superior abrasion resistance, felt appearance and resistance to fuzzing which may occur during the use of ball, the felt covering being made of a polyethylene terephthalate fiber including a polyethylene terephthalate (PET) polymer containing at least 90 mole % of recurring ethylene terephthalate units which satisfies the following parameters:(a) a value of hot air shrinkability/intrinsic viscosity of polymer falling within the range of 5.0 to 7.5%,(b) birefringence of 170.times.10.sup.-3 to 185.times.10.sup.-3,(c) Orientation factor for crystallites fc=0.935 to 0.950, and(d) amorphous molecular orientation parameter of 0.75 to 0.90.
摘要翻译: 一种具有毛毡覆盖物的网球,其具有优异的耐磨性,毛毡外观和在使用球时可能发生的抗绒毛性,该毡覆盖物由聚对苯二甲酸乙二醇酯纤维制成,该聚对苯二甲酸乙二醇酯纤维包含至少90 满足以下参数的重复对苯二甲酸乙二醇酯单元的摩尔%:(a)聚合物的热空气收缩性/特性粘度值在5.0〜7.5%的范围内,(b)170×10 -3〜185×10 -3的双折射率, (c)微晶的取向因子fc = 0.935〜0.950,(d)无定形分子取向参数为0.75〜0.90。
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公开(公告)号:USRE34128E
公开(公告)日:1992-11-17
申请号:US738048
申请日:1991-03-21
申请人: Boonchai Lorhpipat
发明人: Boonchai Lorhpipat
IPC分类号: A63B39/00
CPC分类号: A63B39/00 , A63B2039/003
摘要: Disclosed herein is a takraw ball comprising hoops woven into a spherical basket, each hoop being formed of an elongate, generally flat strip of plastics material, each strip having one convex side edge of constant radius and the other side edge of sinusoidal undulating profile and being joined by its ends to form a frustoconical hoop; pairs of hoops being arranged with the strip convex side edges opposed in a common plane or in parallel planes and the sinusoidal side edges relatively staggered so that interwoven hoops intersect at the troughs of sinusoidal side edges.
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公开(公告)号:US4947466A
公开(公告)日:1990-08-07
申请号:US399129
申请日:1989-08-28
CPC分类号: A63B39/00 , A63B2043/001 , A63B2208/12 , Y10S273/20
摘要: A hollow tennis ball which comprises a hollow core of elastic material which encloses an interior space, and a layer of substantially felt-like material which is applied to the outer surface of the hollow core. The overall weight of the hollow tennis ball is substantially between 30 and 54 grams. The pressure in the interior space is substantially from 0 to 0.7 kg/cm.sup.2 higher than atmospheric pressure. The thickness of the hollow core is substantially between 2.2 and 4.5 mm. The forward deformation of the hollow tennis ball is substantially from 6.5 to less than 12 mm under loading force of 3.5 and 18 pounds. The return deformation is substantially from 10.5 to less than 15 mm after it has deformed to 2.54 cm under a loading force of 18 pounds.
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公开(公告)号:US4861028A
公开(公告)日:1989-08-29
申请号:US226236
申请日:1988-07-29
申请人: Donald E. Williams
发明人: Donald E. Williams
CPC分类号: A63B37/06 , A63B39/00 , A63B2102/18 , Y10S273/04 , Y10S273/20
摘要: A softball including a hollow spherical core and a leather cover. The core is formed from a mixture of low density polyethylene and ethylene acid copolymer in which the amounts of the low density polyethylene and the ethylene acid copolymer can be adjusted to vary the coefficient of restitution of the softball from 0.47 to 0.52 at a hardness of Shore D 43 to 51.
摘要翻译: 一个垒球包括一个中空的球形核心和一个皮革盖子。 芯由低密度聚乙烯和乙烯酸共聚物的混合物形成,其中可以调节低密度聚乙烯和乙烯酸共聚物的量,以将硬球的恢复系数从0.47变化到0.52,硬度为Shore D 43到51。
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公开(公告)号:US4735405A
公开(公告)日:1988-04-05
申请号:US1658
申请日:1986-12-01
申请人: Claude C. A. Marocco
发明人: Claude C. A. Marocco
CPC分类号: A63B69/409 , A63B2102/16
摘要: A table tennis training apparatus adapted to be attached to a table tennis table and which apparatus ejects balls towards a user. The apparatus has a plurality of ball projection tubes, each communicating with a source of compressed air. The tubes include a first ball ejection tube having an air regulating device and a plurality of adjustable ball ejection tubes. Balls are fed to the first tube by a magazine loaded with balls and are fed to the second tubes by being sucked by air from the table surface through openings in the tubes adjacent the table surface. A screen is provided about the ball projecting apparatus for arresting and directing balls to the apparatus after being hit by a player.
摘要翻译: PCT No.PCT / AU85 / 00069 Sec。 371日期1986年12月1日第 102(e)日期1986年12月1日PCT提交1985年4月4日PCT公布。 第WO86 / 05701号公报 日期:1986年10月9日。一种乒乓球训练装置,适于安装在乒乓球桌上,该装置向使用者弹出球。 该装置具有多个球形投影管,每个与压缩空气源连通。 管包括具有空气调节装置和多个可调节球排出管的第一球排出管。 球通过装载有球的料仓被供给到第一管,并且通过空气从台面通过邻近台面的管中的开口被吸入第二管。 提供关于球投射装置的屏幕,用于在被玩家击中之后阻止和引导球到设备。
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