Patent ID: 8931524
Filing Date: 2015-01-13
Classification: B65B,G03G,Y10T

Abstract:
1. A fluid transferer, comprising: at least one volume hanging part; at least one reciprocating member configured to reciprocate to expand a volume of the volume changing part to draw a fluid from an upstream side of a transfer direction and compress the volume thereof to transfer the drawn fluid to a downstream side thereof with pressure; and a drive controller configured to control reciprocation of the reciprocating member such that a time for compressing the volume of the volume changing part is longer than a time for expanding the volume thereof, wherein the drive controller comprises a cam configured to rotate by drive transmission from a rotational drive source, to change a distance from a rotational axis to a circumferential surface of the cam according to a position of the circumferential surface, and wherein the cam rotates in one rotational direction to cause the reciprocating member to compress the volume of the volume changing part, and the cam rotates in an opposite rotational direction to cause the reciprocating member to expand the volume of the volume changing part.