| 摘要 |
PCT No. PCT/GB97/00372 Sec. 371 Date Aug. 13, 1998 Sec. 102(e) Date Aug. 13, 1998 PCT Filed Feb. 10, 1997 PCT Pub. No. WO97/29851 PCT Pub. Date Aug. 21, 1997A liquid supply apparatus having a receptacle for containing a liquid to be supplied, air and a controlling means having a valve for controlling the volume of air in the receptacle. Liquid is supplied through an outlet from the receptacle. The receptacle is controlled so the liquid supplied to the outlet is at a negative pressure while the liquid is moved to an outlet. |
