摘要:
Disclosed herein is a breaking apparatus for glass substrates. The breaking apparatus includes a breaking bar connected to a linear driver, a plurality of linear bushes longitudinally mounted on the breaking bar and each including an outer barrel, a plurality of buffer cylinders longitudinally mounted on the breaking bar, and a breaking tip extending in one direction and having a bar shape with a predetermined width. Each of the buffer cylinders includes a hollow cylinder body generating pressure therein, a piston received in the cylinder body, and a piston rod connected to the piston. The breaking tip is disposed in a longitudinal direction of the breaking bar beneath the breaking bar and connected to the piston rods and the shafts to be brought into contact with a glass substrate.
摘要:
A glass substrate laser cutting device according to the invention includes: a working table that has a plurality of vacuum absorbing grooves; a laser cutter; a pressure sensor that measures a pressure sensor when suctioning the glass substrate in a vacuum state; a calculation processing unit that compares the vacuum pressure measured by the pressure sensor with a predetermined threshold pressure and determines whether the glass substrate is broken; a laser cutter that includes a leaser head moving along the cutting direction of the glass substrate and emitting a laser beam; and an optical sensor that is attached to the laser head so as to move together and is disposed at a point in front of the laser beam emitted to the outside so as to detect the breakage of the glass substrate.
摘要:
The present invention concerns the apparatus for producing oxygen, comprising: a first zeolite bed connected to an external air pressurizing device and a depressurizing device for increasing or decreasing an internal pressure thereof; a second zeolite bed connected to the first zeolite bed in parallel and connected to the external air pressurizing device and the depressurizing device for decreasing or increasing an internal pressure thereof, the first and second zeolite beds being arranged such that the internal pressure of the second zeolite bed is decreased when the internal pressure of the first zeolite bed is increased, and the internal pressure of the second zeolite bed is increased when the internal pressure of the first zeolite bed is decreased; and a carbon molecular sieve bed communicated in fluid with the first and second zeolite beds for receiving and adsorbing oxygen produced in the first and second zeolite beds and discharging the produced oxygen to the outside and discharging selectively some of the produced oxygen to the first zeolite bed or the second zeolite bed.
摘要:
A heart valve prosthesis and a method of fabricating the same. The heart valve prosthesis uses a leaflet of pig pericardium or a leaflet of cattle pericardium, which has a suitable thickness according to the size of the valve, and a stent. The heart valve prosthesis is fabricated by placing a valve body over a Dacron body, binding the valve body to the Dacron body using stitching fiber, rolling the Dacron body into a cylindrical form such that the valve body is located inside, binding opposite edges of the Dacron body to each other using stitching fiber, and inserting the resultant structure into a stent, which is knitted using a shape memory alloy wire. The heart valve prosthesis is friendly to and is not rejected by human tissue, is free from deformation, and can be implanted using a non-invasive manner without incising the chest wall of a patient.
摘要:
This invention concerns the apparatus for producing oxygen, comprising a zeolite bed system connected to an external air pressurizing means and a vacuum pump to increase or decrease the internal pressure for producing oxygen; a carbon molecular sieve bed system adsorbing oxygen generated in the zeolite bed system and supplying oxygen which is not adsorbed into the zeolite bed, and then the carbon molecular sieve bed producing oxygen by decreasing the inner pressure, it further relates the method for controlling the above apparatus, comprising; the first step of increasing the internal pressure of the zeolite bed system to adsorb nitrogen and to produce oxygen; the second step of supplying oxygen produced in the zeolite bed system to the carbon molecular sieve bed system to increase the pressure in the carbon molecular sieve bed system and to adsorb oxygen; the third step of supplying oxygen which is not adsorbed in the carbon molecular sieve bed system to the zeolite bed system; and the fourth step of decreasing the internal pressure of the carbon molecular sieve bed system to discharge oxygen produced therein to an external device.