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:
Jun. 06, 2023
Filed:
Feb. 07, 2020
Applicant:
Nippon Pillar Packing Co., Ltd., Osaka, JP;
Inventors:
Assignee:
NIPPON PILLAR PACKING CO., LTD., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
F04B 43/02 (2006.01); F04B 53/14 (2006.01); F04B 43/00 (2006.01);
U.S. Cl.
CPC ...
F04B 43/02 (2013.01); F04B 43/0054 (2013.01); F04B 53/14 (2013.01); F05B 2210/11 (2013.01);
Abstract
A rolling diaphragmof a rolling diaphragm pumphas a movable portionreciprocatable together with a piston, a fixed portionfixed to a housing, and a thin film portionconnecting the movable portionand the fixed portionand bending due to reciprocation of the piston. A rubber layeris overlaid on the thin film portionwithout being adhered to the thin film portion, an end portionon the movable portionside of the rubber layeris fixed to the piston, and an end portionon the fixed portionside of the rubber layeris fixed to the housing