公开(公告)号：US6001769A

公开(公告)日：1999-12-14

申请号：US937938

申请日：1997-09-25

Applicant: John Michael Citterbart ,  Sam Kumar

Inventor： John Michael Citterbart ,  Sam Kumar

IPC: B09C1/00 ,  B09C1/02 ,  C02F1/68 ,  B01J20/02

CPC classification number: B09C1/02 ,  B09C1/002 ,  C02F1/683 ,  Y10S502/512

Abstract: Compositions and methods for decreasing chemical contamination in subsurface water bearing geological formations, comprising an oxidized form of lignitic coal, or its derivatives, preferably leonardite, and at least one surface active agent. The compositions can be applied to an affected water bearing formation by conventional groundwater management methods, e.g., injection wells and groundwater extraction systems.

Abstract translation: 包含氧化形式的褐煤，或其衍生物，优选莲碱和至少一种表面活性剂的地下含水地质地层中化学污染物的组合物和方法。 组合物可以通过常规的地下水管理方法，例如注入井和地下水萃取系统施用于受影响的含水地层。

公开(公告)号：US5997749A

公开(公告)日：1999-12-07

申请号：US157034

申请日：1998-09-18

Applicant: John Michael Citterbart ,  Sam Kumar

Inventor： John Michael Citterbart ,  Sam Kumar

IPC: B09C1/00 ,  B09C1/02 ,  C02F1/68 ,  C02F1/42

CPC classification number: B09C1/02 ,  B09C1/002 ,  C02F1/683 ,  Y10S502/512

Abstract: Compositions and methods for decreasing chemical contamination in subsurface water bearing geological formations, comprising an oxidized form of lignitic coal, or its derivatives, preferably leonardite, and at least one surface active agent. The compositions can be applied to an affected water bearing formation by conventional groundwater management methods, e.g., injection wells and groundwater extraction systems.

Abstract translation: 包含氧化形式的褐煤，或其衍生物，优选莲碱和至少一种表面活性剂的地下含水地质构造中的化学污染物的组合物和方法。 组合物可以通过常规的地下水管理方法，例如注入井和地下水萃取系统施用于受影响的含水地层。

公开(公告)号：US4750768A

公开(公告)日：1988-06-14

申请号：US863308

申请日：1986-05-15

Applicant: V. Sam Kumar

Inventor： V. Sam Kumar

IPC: B66C1/02

CPC classification number: B66C1/0256 ,  B66C1/0212 ,  B66C1/0231 ,  B66C1/0268 ,  B66C1/0293 ,  Y10S294/907

Abstract: This all pneumatic vacuum gripper which utilizes a fluid amp sensor senses an object when the object comes in contact with vacuum cup. This activates the main venturi vacuum generator which provides the vacuum force necessary to `grip` the object to be lifted. An external release signal cuts the vacuum `off` to release the object. Vacuum power is generated only when lifting the object thus saving energy and also minimizing ambient noise. Sensitivity of pick-up level is also adjustable. The preferred embodiment of the all pneumatic vacuum gripper utilizes fluid logic sensing and processing, senses an object when the object comes in contact with the vacuum cup. This activates the main venturi vacuum generator which provides the vacuum force necessary to "grip" the object to be lifted. The fluid logic circuit automatically locks the vacuum in the suction cup while turning "off" the power supplied to the main venturi after a predetermined period of time. Vacuum power is generated only long enough to pick up the object and lock up the vacuum to hold it. An external release signal unlocks the vacuum to release the object.

Abstract translation: 当物体与真空杯接触时，使用流体放大器传感器的所有气动真空夹具感测物体。 这激活主文丘里真空发生器，其提供“夹持”要提升的物体所需的真空力。 外部释放信号切断真空“关闭”以释放物体。 只有提起物体才能产生真空功率，从而节约能源，同时最大限度地减少环境噪音。 拾取水平的灵敏度也是可调的。 所有气动真空夹具的优选实施例利用流体逻辑检测和处理，当物体与真空杯接触时感测物体。 这激活主文丘里真空发生器，其提供“抓住”要提升的物体所需的真空力。 流体逻辑电路在预定时间段之后，在“关闭”供给主文丘里管的电源的同时自动锁定吸盘中的真空。 真空功率仅产生足够长的时间才能拾取物体并锁定真空来保持物体。 外部释放信号解除真空释放物体。