| CHANTO AIR HYDRAULICS CO., LTD. Patent applications |
| Patent application number | Title | Published |
|---|
| 20120017758 | PRESSURE CYLINDER WITH OIL STORING FUNCTION - A pressure cylinder includes a first cylinder body having accommodated therein a piston. a second cylinder body defining therein a first passage vertically connected to the first cylinder body, an oil storage chamber vertically connected to the first passage, a second passage vertically connected to the oil storage chamber and a pressure chamber vertically connected to the second passage and having a cross-sectional area smaller than the oil storage chamber, and a piston rod inserted through the first passage of the second cylinder body in an airtight manner and having its one end connected to the piston and its other end movable by the piston between a first position in the oil storage chamber and a second position in the pressure chamber to add a pressure to the hydraulic oil in the pressure chamber and to let the hydraulic oil in the oil storage chamber be supplied to the pressure chamber to make up any hydraulic oil loss, maintaining the output. | 01-26-2012 |
| 20100143025 | MULTI-PURPOSED PNEUMATIC TUBE CONNECTOR - A multi-purposed pneumatic tube connector, which is incorporated in a pneumatic system to create a second passageway, includes a main member and an electromagnetic valve. The main member has a main tunnel, a first tunnel, a second tunnel, an inter-tunnel, and a sub-tunnel. The second tunnel is normally communicated with the main tunnel. The inter-tunnel is communicated with the main tunnel, in which a control end of the electromagnetic valve is inserted. The inter-tunnel is communicated with the first tunnel through the sub-tunnel, and the electromagnetic valve may control the communication of the main tunnel and the first tunnel. | 06-10-2010 |
| 20100139411 | DIGITAL PRESSURE SENSOR - A digital pressure sensor, which is mounted on a pressure controller of a pneumatic tube system, includes a casing including a control circuit, which has a pressure sensing unit, therein, a display, which has a plurality of displaying units for showing numerals or icons, on a front side connected to said control circuit, and a connection tube on a bottom thereof for communication with a connection tube of the pneumatic tube system that said pressure sensing unit of said control circuit senses a pressure in the tube via said connection tube; and a battery set received in said casing and electrically connected to said control circuit. | 06-10-2010 |
