公开(公告)号：US4063489A

公开(公告)日：1977-12-20

申请号：US672133

申请日：1976-03-31

Applicant: Donald James Parquet ,  Carl Oluf Pedersen

Inventor： Donald James Parquet ,  Carl Oluf Pedersen

IPC: F15B13/01 ,  F15B11/08 ,  F15B13/042

CPC classification number: F15B13/01 ,  Y10T137/7727 ,  Y10T137/7785

Abstract: A hydraulic safety system for use with a hydraulic valve and a work apparatus which is retained under hydraulic pressure even when the hydraulic line is broken inadvertently. A lock valve is connected in the line and senses the loss of hydraulic pressure, and the valve is actuated in response to the pressure drop and retains the work apparatus in a pressurized condition to thereby avoid undesired movement in response to the loss of pressure.

Abstract translation: 用于液压阀的液压安全系统和即使在液压管路意外断开的情况下也保持在液压下的作业装置。 锁定阀连接在管路中并且感测到液压的损失，并且阀响应于压降而致动，并且将加工装置保持在加压状态，从而避免了由于压力损失而引起的不期望的运动。

公开(公告)号：US4033870A

公开(公告)日：1977-07-05

申请号：US701903

申请日：1976-07-01

Applicant: Donald James Parquet ,  Carl Oluf Pedersen

Inventor： Donald James Parquet ,  Carl Oluf Pedersen

IPC: B01D35/12 ,  B01D29/36

CPC classification number: B01D35/12

Abstract: A dual oil filter automatic switching system incorporating two oil filters and a switching oil valve and an oil pump, all connected together. The system also includes electric means incorporating a differential pressure switch and a latching relay, and an electric signal and an electrically-operative temperature switch are also disclosed. The oil valve is electrically responsive to the electric switching, and the valve directs the oil to either or both of the filters.

Abstract translation: 双油滤清器自动切换系统，包括两个油过滤器和开关油阀和油泵，全部连接在一起。 该系统还包括结合了差压开关和闭锁继电器的电气装置，并且还公开了电信号和电动式温度开关。 油阀对电气开关进行电响应，并且阀将油引导到过滤器中的一个或两个。

公开(公告)号：US4014213A

公开(公告)日：1977-03-29

申请号：US636688

申请日：1975-12-01

Applicant: Donald James Parquet

Inventor： Donald James Parquet

IPC: B60T13/14 ,  B60T17/22 ,  F15B1/24 ,  G01L19/12 ,  G01F23/18 ,  B60T11/10 ,  F16L55/04 ,  H01H35/34

CPC classification number: G01L19/12 ,  B60T13/148 ,  B60T17/22 ,  F15B1/24 ,  F15B2201/205 ,  F15B2201/21 ,  F15B2201/312 ,  F15B2201/3151 ,  F15B2201/41 ,  F15B2201/4155

Abstract: An accumulator warning system utilizing an electric system with an electric signal and wherein a movable member is disposed in a container having a gas on one side of the member and oil on the other side of the member. The movable member moves toward electric conductors when the gas in the container is depleted, and thus the electric signal is activated.

Abstract translation: 一种利用具有电信号的电气系统的蓄电池警告系统，其中可动构件设置在具有在构件的一侧上的气体的容器中，并且在该构件的另一侧上具有油。 当容器中的气体耗尽时，可动构件向导电体移动，从而电信号被激活。