The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 03, 2012
Filed:
Apr. 06, 2006
Takeo Yajima, Tokyo, JP;
Takeo Yajima, Tokyo, JP;
Koganei Corporation, Tokyo, JP;
Abstract
A chemical liquid supplying apparatushas a bellows, which includes a small-size bellows portion, a large-size bellows portionwith a larger volume change per axial-directional unit displacement amount than that of the small-size bellows portion, and a drive portiontherebetween. An apparatus main bodyto which the bellowsis attached includes a supporting memberto which a fixed end portionof the bellowsis attached and a supporting memberto which a fixed end portionof the bellowsis attached. A drive sleevesurrounds the bellowsand is rotatably supported on the apparatus main body. A driven cylinder bodyattached to the drive portionconverts rotation of the drive sleeveto axial-directional movement of the drive portion