| 20110061752 | Dual gas source changeover valve and control cabinet and gas supply system - A dual gas source changeover valve comprises a valve body having a first inlet port, a second inlet port and an outlet port which are all in fluid communication with each other, a spool having a structure relative to an axial passage of the cavity of the valve body and which is slidably disposed therein, a first transition cavity formed by the cavity of the valve body and the spool between the first inlet port and the outlet port, a second transition cavity disposed opposite to the first transition cavity and formed between the second inlet port and the outlet port. By introducing delivered gas to the first transition cavity or the second transition cavity through connection channels, the present invention selectively connects or disconnects the first inlet port, the first transition cavity and the outlet port or the second inlet port, the second transition cavity and the outlet port. | 03-17-2011 |
| 20090082741 | Combo suction regulator for medical use - A combo suction regulator for medical use which comprises a cover (casing), a vacuum gauge, a regulating module, a integrated flow channel module, an intermittent timer regulating means, a mode select switch, a vacuum relief and air buffer, wherein a flow channel board and a bottom board coupled with each other to form the integrated flow channel module; the air buffer are disposed inside the casing on the board surface of the flow channel board which forms part of the integrated flow channel module, and tow holes disposed at a bottom part thereof for communicating corresponding flow channels of the integrated flow channel module; a sleeve seat is disposed at the center for installing vacuum gauge. The probe/adapter port is used to input of vacuum source and needle vales are used to timer adjusting in the bottom board at a middle part thereof; the flow channel board has a pole on a front side thereof for installing the mode select switch, and channel holes for communicating with flow channels on the flow channel board thereof; in a lower part of the flow channel board, an sleeve seat is disposed for installing the regulating module, which communicates with a flow channel on the flow channel board and adjusts the output vacuum; the fitting port is used to output of the suction regulator and disposed the bottom side. The intermittent timer module comprises the diaphragm piston disposed on one side and the change valve disposed on another side of the middle part of the front side of the flow channel board. | 03-26-2009 |
