| 摘要 |
The device comprises a plate 1 for sealing one end of a cylinder 2, having therein two slots 3 and 4, the former for the suction of gas into the said cylinder and the latter for the delivery of the gas there from, a cover 5 for sealing the said end, two blades 8 and 9 able to be deformed elastically by flexure and/or torsion, the seats of which are constituted by part of the inner side 1b and of the outer side 1a of the said plate 1, with the said parts correspondingly comprising the said slots 3 and 4, and to conclude, elements 10 for locking both of the said blades 8 and 9 to the said plate 1 in the region of the axis of this. |
