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    • 4. 发明申请
    • Device for adjusting water level
    • 水位调节装置
    • US20050115149A1
    • 2005-06-02
    • US10726390
    • 2003-12-01
    • Hideho Tanaka
    • Hideho Tanaka
    • A01G27/00A01G25/00
    • A01G27/003
    • A compact water level regulator which may be used with a water catcher and/or with a planter. A case includes side and upper surfaces of the case form an airtight chamber having an open bottom, a filling port plug, an air vent hole, and an air inlet in a side bottom. A first float is installed on the upper surface of the case and includes a ventilation plug. The ventilation plug releases and shuts the air vent hole as the first float raises and falls by the buoyancy thereof in response to the level of water outside the case. A second float is installed inside the case and includes a water filling port plug. The water filling port plug shuts the water filling port by buoyancy thereof in response to the water level inside the case. When water level falls enough to open the air inlet to the atmosphere, the second float falls thereby disengaging the water filling port plug and opening the water filling port.
    • 一种紧凑的水位调节器,可与捕水器和/或与播种机一起使用。 壳体包括壳体的侧表面和上表面,形成具有开口底部的气密室,填充口塞,排气孔和侧底部的空气入口。 第一浮子安装在壳体的上表面上并且包括通风塞。 随着第一浮子由于外壳外的水平面的升高而浮起并且被浮力下降,通风塞释放并关闭排气孔。 第二个浮子安装在壳体内,并包括一个注水口塞。 充水口插塞响应于壳体内部的水位,通过浮力将其填充水口关闭。 当水位下降到足以打开大气的入口时,第二个浮子就会下降,从而使注水口堵塞并打开注水口。
    • 8. 发明授权
    • Terminal-modified imide oligomer composition
    • 终端改性的低聚物组合物
    • US5145916A
    • 1992-09-08
    • US513905
    • 1990-04-24
    • Shinji YamamotoHideho TanakaKazuyoshi Fujii
    • Shinji YamamotoHideho TanakaKazuyoshi Fujii
    • C08F290/00C08F299/00C08G73/10C08L79/08
    • C08G73/1082C08G73/10C08G73/1014C08G73/1017C08G73/1071C08L79/08
    • A composition of terminal-modified imide oligomers is disclosed. The composition comprises a flexible terminal-modified imide oligomer (A) and a rigid terminal-modified imide oligomer (B). The flexible terminal-modified imide oligomer (A) is selected from specific oligomers (I) and (II). The rigid terminal-modified imide oligomer (B) is selected from specific oligomers (III) and (IV). The oligomer (I) is formed from biphenyltetracarboxylic acid or its derivative, an aromatic diamine compound (a) and an unsaturated monoamine compound or an unsaturated carboxylic acid or its derivative. The oligomer (II) is formed from biphenyltetracarboxylic acid or its derivative and an unsaturated monoamine compound. The oligomer (III) is formed from biphenyltetracarboxylic acid or its derivative, an aromatic diamine compound (b) and an unsaturated monoamine compound or an unsaturated carboxylic acid or its derivative. The oligomer (IV) is formed from pyromellitic acid or its derivative, an aromatic diamine compound (c) and an unsaturated monoamine compound or an unsaturated carboxylic acid or its derivative. The aromatic diamine compound (a) has two or more aromatic rings which are combined with each other directly or by a divalent group consisting of one, two or three atoms. The aromatic diamine compound (b) has only one aromatic ring or condensed ring. The aromatic diamine compound (c) may have two or more aromatic rings as is defined in the compound (a), or may have only one aromatic ring or condensed ring as is defined in the compound (b).