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:
Mar. 21, 2017
Filed:
Sep. 26, 2012
Nippon Pillar Packing Co., Ltd., Osaka-shi, Osaka, JP;
NIPPON PILLAR PACKING CO., LTD., Osaka-Shi, JP;
Abstract
In a diaphragm pump having a fluorine resin-made rolling diaphragm including: an inner circumferential portion that elongates along an outer circumferential surface of a piston; an outer circumferential portion that elongates along the inner circumferential surface of a cylinder; and a folded portion that is formed by folding back in a tubular space between the cylinder and the piston; and a pump chamber is separated by the rolling diaphragm in the cylinder, the rolling diaphragm is produced in an extended attitude corresponding to an attitude obtained when, by a projective movement of the piston, the outer circumferential portion is eliminated, and the folding of the folded portion is opened.