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公开(公告)号:US4960014A
公开(公告)日:1990-10-02
申请号:US409331
申请日:1989-09-19
申请人: Roy C. Kelley
发明人: Roy C. Kelley
IPC分类号: B25G1/00
CPC分类号: B25G1/005
摘要: An extension handle for a wrench is provided. The extension handle is elongated and has two U-shaped elements in planes perpendicular to the length of the extension handle. One of these U-shaped elements has its open and facing in one direction and the other U-shaped element has its open end facing in a direction opposite to the direction that the open end of the first element faces. This permits the extension handle to receive wrenches and to apply torque to the wrenches. In order that the extension handle will receive wrenches that are not flat, the U-shaped elements hold the wrenches in spaced relation to the body of the extension handle.
摘要翻译: 提供扳手的延长手柄。 延伸手柄是细长的,并且在垂直于延伸手柄的长度的平面中具有两个U形元件。 这些U形元件中的一个具有其一个方向上的开口和面向,另一个U形元件的开口端面向与第一元件的开口端面相反的方向。 这允许延伸手柄接收扳手并施加扭矩到扳手。 为了使延伸手柄接收不平坦的扳手,U形元件将扳手保持与延伸手柄主体间隔开。
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公开(公告)号:US4669536A
公开(公告)日:1987-06-02
申请号:US656114
申请日:1984-09-27
CPC分类号: E21B49/084 , E21B33/03 , E21B43/04 , E21B43/127 , F04B47/024
摘要: A groundwater monitoring system includes a bore, a well casing within and spaced from the bore, and a pump within the casing. A water impermeable seal between the bore and the well casing prevents surface contamination from entering the pump. Above the ground surface is a removable operating means which is connected to the pump piston by a flexible cord. A protective casing extends above ground and has a removable cover. After a groundwater sample has been taken, the cord is disconnected from the operating means. The operating means is removed for taking away, the cord is placed within the protective casing, and the cover closed and locked. The system is thus protected from contamination, as well as from damage by accident or vandalism.
摘要翻译: 一个地下水监测系统包括一个孔,一个在孔内并与该间隔开的井壳,以及一个位于壳体内的泵。 孔和井套之间的不透水密封防止表面污染进入泵。 地面以上是可拆卸的操作装置,其通过柔性绳连接到泵活塞。 保护套在地面上方延伸,并具有可拆卸的盖子。 在采集了地下水样本后,电线与操作装置断开连接。 拆卸操作装置以取走,将电线放在保护套内,盖子关闭并锁定。 因此,该系统可以免受污染,以及由意外或破坏造成的损害。
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