Circulus Inc.

Jun Ueki

Shigeru Nemoto

Yumiko Fukikoshi

Yasufumi Saitoh

A safe and easy handling of a chemical-liquid circuit having various components. The opening/closing unit drive mechanism includes an opening/closing unit holder which detachably holds an opening/closing unit which includes a housing having flow channels and a piston for opening and closing the flow channels which is movably provided to the housing, a hook to be engaged with the piston of the opening/closing unit, which is disposed leaving a space from the opening/closing unit holder, and a linear motion mechanism which moves the hook back and forth. The opening/closing unit holder is movably supported between a first position at which the piston is engaged with the hook and a second position at which the piston is not engaged with the hook.

Opening/closing unit drive mechanism for chemical-liquid circuit, and chemical-liquid injector

An injection system has: a gasket having a plurality of engaging claws, wherein each of the engaging claws includes an inner surface Swhich defines a hole H having an inlet with an enlarged diameter and an outer surface Sinclined in a direction away from a perpendicular line P passing through a center of the hole H, and the engaging claws are to be displaced between a widened position and a narrowed position; a rain to be inserted into the hole H so as to engage with the engaging claws; a cylinder, into which the gasket is to be inserted, contacting the outer surfaces S; and an injection device configured to move the ram forward and injecting a chemical solution in the cylinder. An annular groove which serves as a starting point of deformation of the engaging claws is formed on the gasket.

Growing community of inventors

Yokohama, Japan

Jun Ueki