| 摘要 |
PCT No. PCT/GB91/01139 Sec. 371 Date Mar. 16, 1993 Sec. 102(e) Date Mar. 16, 1993 PCT Filed Jul. 10, 1991 PCT Pub. No. WO92/00897 PCT Pub. Date Jan. 23, 1992Various arrangements of gas reservoir can be provided for containing a gas such as nitrogen in a carbonated beverage can, the reservoirs being generally of tubular form and/or having a tubular attachment portion by which the reservoir is secured to one of the can end walls. The tube may have a plug and socket connection with one or both can end walls to hold the reservoir in a fixed position, but one end of the tube may simply abut with the can end wall by means of a lug. One or more orifices in the tube, through which gas passes into the beverage when the can is opened, are provided in the tube sidewall, in the step, or in one end of the tube. The tube may be a force-fit in a hole (18) in one end wall of the can. |
