BUSH FOR FITTING OF RAW BEER BARREL

摘要

PROBLEM TO BE SOLVED: To completely prevent the growth of molds in wet beer when the covering of a mouthpiece of a beer barrel is removed, as well as to determine and detect the degree of degradation due to the secular change of a sealing member to be used and the life of the sealing member, in a bush for fitting of a draft beer barrel. SOLUTION: A middle part to be screwed to the upper part inner peripheral face of the mouthpiece and a skirt part are provided respectively to the lower part of a collarlike part having an outer diameter capable of covering the outer peripheral surface upper end of the mouthpiece of the beer barrel via the step part. When a groove part for mounting the sealing member is provided on the middle part outer peripheral face right under the collarlike part, and the sealing member is intervened in the step part between the skirt part and the middle part and in the step part of the inner peripheral face bottom part of the mouthpiece to be screwed to the mouthpiece so that the step parts may be gapped. COPYRIGHT: (C)2005,JPO&NCIPI