APPARATUS AND METHOD FOR PREVENTING BACTERIA FROM PROPAGATING AND REMOVING BACTERIA IN DRINK CONVEYING PIPE

摘要

An apparatus of the prior art for preventing bacteria from propagating in a feed pipe by an electromagnetic field has no or little effect. An apparatus (1) of the invention for preventing bacteria from propagating and removing bacteria on the inner wall of a conveying pipe (63) for conveying beer or the like, comprising a control unit (2) for generating an electric signal containing an audible frequency component, a transponder (3) including a coil (31) and a case (32) housing the coil (31), and attaching means for attaching the transponder (3) on the outer wall of the conveying pipe (63), wherein the electric signal is applied to the coil (31) and thereby an audible frequency is generated and transmitted through the conveying pipe.