| 摘要 |
PCT No. PCT/SE87/00164 Sec. 371 Date Feb. 22, 1988 Sec. 102(e) Date Feb. 22, 1988 PCT Filed Mar. 31, 1987 PCT Pub. No. WO87/06457 PCT Pub. Date Nov. 5, 1987.A substantially closed nursing mug having an upper discharge nipple (31) and a vertically extending dosing chamber (18) adjacent to a side wall portion (3a) of the mug, the volume of the dosing chamber corresponding to a predetermined liquid volume to be drunk at a time. Upper and lower valves (11, 12) are disposed at the upper and lower ends, respectively, of the dosing chamber (18). The upper valve (11) is adapted to automatically switch from a closing position to an opening position when the mug is tilted beyond a first tilting angle, and the lower valve (12) is adapted to automatically switch from an opening position to a closing position when the mug is tilted beyond a second tilting angle being less than or substantially equal to the first tilting angle. |
