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公开(公告)号：US4048753A
公开(公告)日：1977-09-20
申请号：US659551
申请日：1976-02-19
CPC分类号： A01G31/02 , Y02P60/216
摘要： A horizontal tray is provided for growing plants and a liquid nutrient reservoir for receiving a predetermined amount of liquid nutrient therein is supported, in counterbalanced fashion, for vertical shifting relative to the tray between an upper position elevated relative to the tray and a lowered position depressed relative to the tray. The support structure supporting the nutrient reservoir in counterbalanced fashion is slightly overbalanced to cause the support means to shift the nutrient reservoir, by gravity, toward the upper position thereof and a flexible drain tube communicates the lower portions of the interiors of the tray and reservoir for draining nutrient from the reservoir into the tray upon movement of the reservoir to the upper position thereof and return drainage of nutrient from the tray into the reservoir upon subsequent movement of the reservoir to the depressed position thereof, structure being provided to releasably retain the reservoir in the depressed position. A second form of the invention includes a counterbalance water tank for the reservoir operatively connected to a suitable water supply for slow filling of the water tank to an overbalance condition and provided with a drain for slow drainage of water from the tank to an underbalance condition, whereby the reservoir may return, by gravity, to the depressed position thereof.
摘要翻译： 提供用于生长植物的水平托盘，并且以平衡方式支撑用于接收预定量的液体营养物的液体营养储存器，用于在相对于托盘升高的上部位置和相对于托盘升高的下部位置之间相对于托盘垂直移位和降低位置 相对于托盘。 以平衡方式支撑营养储存器的支撑结构略微过度平衡，使得支撑装置通过重力将营养储存器移向其上部位置，并且柔性排水管连通托盘和储存器的内部的下部，用于 当储存器移动到其上部位置时，将储存器的营养物从储存器排出到托盘中，并且随后储存器移动到其凹陷位置时，将营养物从托盘排出到储存器中，结构被提供以可释放地将储存器保持在 沮丧的地位。 本发明的第二种形式包括用于储存器的平衡水箱，其可操作地连接到合适的水源，用于将水箱缓慢地填充到过度平衡状态，并设置有用于将水从罐缓慢排放到不平衡状态的排水口， 由此储存器可以通过重力返回到其压下位置。
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公开(公告)号：US4038779A
公开(公告)日：1977-08-02
申请号：US621538
申请日：1975-10-10
CPC分类号： A01G31/02 , Y02P60/216
摘要： An upstanding open top reservoir is provided and a foraminated plate is disposed within an upper portion of the reservoir with the latter and the plate including coacting structure supporting the panel or plate within the reservoir against downward displacement relative thereto. An upstanding sleeve is secured through a central portion of the plate and supported therefrom. The upper and lower ends of the sleeve include liquid outlet and liquid inlet structure, respectively, spaced above and below the plate and manually operable lift pump structure is disposed within the sleeve, includes an operator actuatable from the upper end of the sleeve and is operable, upon actuation of the operator, to lift liquid plant nutrient upwardly through the sleeve from the lower end thereof to the upper end thereof for flowing outwardly from the upper end of the sleeve through the liquid outlet structure.
摘要翻译： 提供了一个直立的开放的顶部贮存器，并且一个被隔离的板被设置在储存器的上部中，并且该板被包括在储存器内支撑面板或板的共同作用结构，以抵抗相对于其的向下移位。 直立的套筒通过板的中心部分固定并由其支撑。 套筒的上端和下端分别包括在板上方和下方间隔开的液体出口和液体入口结构，并且可手动操作的提升泵结构设置在套筒内，包括可从套筒上端致动的操作器， 在操作者致动时，将液体植物营养物从其下端向上提升通过套筒的上端，以从套筒的上端向外流过液体出口结构。
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公开(公告)号：US3952422A
公开(公告)日：1976-04-27
申请号：US524344
申请日：1974-11-15
IPC分类号： G09B19/00
CPC分类号： G09B19/00
摘要： A mounting and control arrangement is provided for a threaded rod such that a subject spinning a split nut on the threaded rod can be "timed" for successive trial rotations. One series of times are taken with the threaded rod stationary. One or more trial times are taken with the threaded rod being rotated at a speed that requires more concentration and effort on the part of the subject. The various time trials are assimilated to provide a "persistence" rating for the subject.
摘要翻译： 为螺杆提供安装和控制装置，使得旋转螺杆上的分离螺母的主体可以“定时”用于连续的试验旋转。 用螺杆固定一系列时间。 一个或多个试验时间是采用旋转的螺杆以需要对受试者的一部分更集中和精力的速度旋转。 各种时间试验被吸收，为主题提供“持久性”评级。
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