公开(公告)号：US3870946A

公开(公告)日：1975-03-11

申请号：US42454673

申请日：1973-12-13

Applicant: NORDSON CORP

Inventor： SANDORF ROBERT E

IPC: B05B5/10 ,  H02M7/10

CPC classification number: B05B5/10 ,  H02M7/106

Abstract: A multiplier module for stepping up low voltage from an external source for application to a spray gun electrode via a coaxial cable, the module being encapsulated and provided with female connectors to facilitate quick connect/disconnect operation and its components uniquely arranged to minimize high voltage hazards.

Abstract translation: 一个乘法器模块，用于通过同轴电缆将来自外部源的低电压升压到喷枪电极，该模块被封装并设置有母连接器，以便于快速连接/断开操作及其部件，以便最大程度地降低高压危害 。

公开(公告)号：US3893006A

公开(公告)日：1975-07-01

申请号：US43326274

申请日：1974-01-14

Applicant: NORDSON CORP

Inventor： ALGERI HARVEY R ,  BRUENING RALPH G ,  SANDORF ROBERT E ,  STILLWELL FRED A

IPC: B05B5/10 ,  G05F1/569 ,  H02H7/00 ,  H02H7/12 ,  B05B5/02 ,  H02H7/122

CPC classification number: G05F1/569 ,  B05B5/10 ,  H02H7/003 ,  H02H7/12

Abstract: A high voltage electrostatic spray coating power supply which turns-off automatically when an overvoltage and/or overcurrent is detected, thereby reducing electrical shock and ignition hazards when spraying in an explosive atmosphere. Included is an unregulated DC supply, a DC voltage regulator, an inverter, and a multiplier of the capacitor/diode type which applies high DC voltage to an electrostatic spray gun. Ground return current from the multiplier output to a common internal ground lead is monitored and if it exceeds a predetermined selectable maximum is effective, via a turn-off circuit, to a) turn-off the DC regulator and b) short-circuit the regulator output and inverter input to the common ground. This prevents power transfer between the unregulated DC source and the voltage multiplier, as well as discharges electrical energy stored in the regulator smoothing capacitors and in the multiplier transformer. An overvoltage circuit is also included to independently turn-off the power supply when the regulator output voltage exceeds a predetermined maximum.

Abstract translation: 一种高压静电喷涂电源，当检测到过电压和/或过电流时自动关闭，从而在爆炸性环境中喷涂时减少电击和点火危险。 包括一个不稳定的直流电源，一个直流稳压器，一个逆变器，以及一个电容器/二极管类型的乘法器，它将静电喷枪施加高的直流电压。 监控从乘法器输出到公共内部接地引线的接地回路电流，如果超过预定可选择的最大值，则通过关断电路有效，a）关断直流调节器，并且b）使调节器短路 输出和变频器输入到公共地。 这可以防止未调节的直流电源和电压倍增器之间的电力传输，以及放电保存在调节器平滑电容器和乘法器变压器中的电能。 当调节器输出电压超过预定最大值时，还包括过电压电路以独立关断电源。

公开(公告)号：US3682131A

公开(公告)日：1972-08-08

申请号：US3682131D

申请日：1971-01-20

Applicant: NORDSON CORP

Inventor： ALGERI HARVEY R ,  SANDORF ROBERT E

IPC: B05C11/10 ,  H03K17/292 ,  H03K17/79 ,  B05C11/00 ,  H03K17/26

CPC classification number: H03K17/292 ,  B05C11/1021 ,  H03K17/79

Abstract: A control system for turning on and off an apparatus which discharges a coating liquid onto objects at a coating station. A sensor positioned adjacent the path of the objects upstream of the coating station initiates an interval timer as an object passes. After a predetermined time delay, the timer turns on a discharge gun positioned at the coating station, to begin to deposit the liquid upon the object. The timer maintains the discharge gun in an actuated condition for a predetermined time duration, and then turns the gun off. The control provides rapid and reliable turn on and turn off of the coating apparatus without false triggering, and provides precise time intervals which are continuously settable over an exceptionally wide range. The control utilizes a rapid reset hold and lock out circuit, SCR switches, unijunction relaxation oscillators having constant current charging circuits, an over voltage output circuit with short circuit protection, and means for programming the operation of plural discharge devices over different time periods.

Abstract translation: 一种用于打开和关闭将涂布液喷射到涂布台上的物体上的装置的控制系统。 邻近涂覆站上游物体的路径定位的传感器随着物体通过而启动间隔定时器。 在预定的时间延迟之后，定时器打开位于涂装站的放电枪，开始将液体沉积在物体上。 定时器将放电枪维持在预定持续时间的启动状态，然后关闭枪。 该控制提供快速可靠的打开和关闭涂布设备而不会发生错误触发，并提供精确的时间间隔，可以在非常宽的范围内连续设置。 该控制利用快速复位保持和锁定电路，SCR开关，具有恒定电流充电电路的单结振荡器，具有短路保护的过电压输出电路，以及用于对不同时间段内的多个放电装置的操作进行编程的装置。