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104 条记录 (耗时 0.043 秒)

    Stepped core pin for a casting mold
    92.
    发明授权
    Stepped core pin for a casting mold 失效
    用于铸模的步进芯针

    公开(公告)号：US5137076A

    公开(公告)日：1992-08-11

    申请号：US540775

    申请日：1990-06-20

    申请人： Katsuhiko Takahashi

    发明人： Katsuhiko Takahashi

    IPC分类号： B22D17/22 ,  B22C9/06 ,  B22D17/24 ,  B29C33/42 ,  B29C33/76 ,  B29C45/26

    CPC分类号： B22D17/24

    摘要： The stepped core pin has a shank to be fitted in a pin holding bore formed in a wall of a casting mold and a forming portion having a diameter smaller than that of the shank which is projected from the inner surface of the casting mold defining a mold cavity into the mold cavity. A front portion of the shank is reduced to form a neck portion and a molten metal stopping portion is formed between the neck portion and the forming portion. The diameter of the molten metal stopping portion, which is slightly smaller than that of the shank excluding the neck portion, is determined so that a clearance through which the molten metal is unable to leak into the pin holding bore is formed between the outer circumference of the pin holding bore and the inner circumference of the molten metal stopping portion. This clearance effectively combines the length of the forming portion with the length of the neck, thereby reducing stress and fatigue to the projected forming portion.

    摘要翻译： 所述阶梯式芯销具有一个固定在一个形成在铸模的壁上的销保持孔中的柄和一个成形部分，其直径小于从铸模的内表面突出的直径， 空腔进入模腔。 减小柄部的前部以形成颈部，并且在颈部和成形部之间形成熔融金属制止部。 确定熔融金属止挡部分的直径略小于除颈部以外的柄部的直径，使得熔融金属不能泄漏到销保持孔中的间隙形成在 销保持孔和熔融金属制止部的内周。 这种间隙有效地将成形部分的长度与颈部的长度相结合，从而减少对投影成形部分的应力和疲劳。

    Piezo-electric acceleration sensor
    95.
    发明授权
    Piezo-electric acceleration sensor 失效
    压电式加速度传感器

    公开(公告)号：US4924131A

    公开(公告)日：1990-05-08

    申请号：US257346

    申请日：1988-10-13

    申请人： Shiro Nakayama ,  Satoshi Kunimura ,  Shigemi Takahashi ,  Katsuhiko Takahashi ,  Toshimitu Hirayama ,  Masao Akutsu

    发明人： Shiro Nakayama ,  Satoshi Kunimura ,  Shigemi Takahashi ,  Katsuhiko Takahashi ,  Toshimitu Hirayama ,  Masao Akutsu

    IPC分类号： G01P15/09 ,  H01L41/113 ,  H01L41/08

    CPC分类号： H01L41/1132 ,  G01P15/0922 ,  Y10S310/80

    摘要： A piezo-electric acceleration sensor, including: a piezo-electric polymer membrane element having an element through-hole; a diaphragm having a diaphragm through-hole and attached to the piezo-electric membrane element so that the diaphragm hole is concentric to the element through-hole to form a laminate with a laminate through-hole; and a fixing mechanism, having a sensing hole, for fixing the laminate in a stretched manner, and wherein: the laminate through-hole has about 2.25 to about 80% of the area of the sensing hole; and the diaphragm and the piezo-electric element meet the equation:(Eb.times.Tb.sup.3)/(Ep.times.Tp.sub.3).gtoreq.about 5wherein Eb, Tb, Ep and Tp are Young's modulus thickness of the diaphragm, Young's modulus, and thickness of the piezo-electric element, respectively, whereby acceleration, applied to the diaphragm, is detected based on a quantity of electricity generated due to strains in a piezo-electric element.

    摘要翻译： 一种压电加速度传感器，包括：具有元件通孔的压电聚合物膜元件; 隔膜，其具有隔膜通孔并附接到压电膜元件，使得隔膜孔与元件通孔同心，以形成具有层压通孔的层压体; 以及固定机构，其具有用于以拉伸方式固定所述层叠体的感测孔，并且其中：所述层压体通孔具有所述感测孔的面积的约2.25至约80％; 并且隔膜和压电元件满足以下等式：（EbxTb3）/（EpxTp3）> / =约5其中Eb，Tb，Ep和Tp是隔膜的杨氏模量厚度，杨氏模量和压电元件的厚度， 电子元件，由此基于由压电元件中的应变产生的电量来检测施加到隔膜的加速度。

    Polyester composition
    96.
    发明授权
    Polyester composition 失效
    聚酯组成

    公开(公告)号：US4859741A

    公开(公告)日：1989-08-22

    申请号：US26486

    申请日：1987-03-16

    申请人： Katsuhiko Takahashi ,  Tsuneyasu Nakashima ,  Hiroshi Nakatsuji ,  Hiroshi Okuda

    发明人： Katsuhiko Takahashi ,  Tsuneyasu Nakashima ,  Hiroshi Nakatsuji ,  Hiroshi Okuda

    IPC分类号： C08K5/29 ,  C08L67/00 ,  C08L67/02

    CPC分类号： C08K5/29 ,  C08L67/00 ,  C08L67/02

    摘要： A polyester composition is disclosed which includes a polyester, (a) a thermoplastic elastomer and (b) a carbodiimide compound having at least one carbodiimide group and which exhibits improved impact resistance at low temperatures and stability to heat, hot water and steam. The composition is useful to form parts which are exposed to low temperatures. A polyalkylene terephthalate resin composition is also disclosed which includes a polyalkylene terephthalate resin, (a) at least one selected from the group consisting of ethylene/alkyl acrylate and a thermoplastic polyester elastomer and (b) at least one selected from the group consisting of an epoxy resin containing at least two carbodiimide groups in the molecule.

    摘要翻译： 公开了一种聚酯组合物，其包含聚酯，（a）热塑性弹性体和（b）具有至少一个碳二亚胺基团的碳二亚胺化合物，并且其在低温下表现出改善的耐冲击性和对热，热水和蒸汽的稳定性。 组合物可用于形成暴露于低温的部分。 还公开了一种聚对苯二甲酸亚烷基二醇酯树脂组合物，其包含聚对苯二甲酸亚烷基二醇酯树脂，（a）选自乙烯/丙烯酸烷基酯和热塑性聚酯弹性体中的至少一种，和（b）选自以下的至少一种： 在分子中含有至少两个碳二亚胺基团的环氧树脂。