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:
Nov. 06, 2018
Filed:
Aug. 26, 2016
Applicant:
Maruyama Mfg. Co., Inc., Tokyo, JP;
Inventors:
Takayuki Kaneko, Tokyo, JP;
Nobuhiro Yuhashi, Tokyo, JP;
Assignee:
MARUYAMA MFG. CO., INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 53/18 (2006.01); F04B 1/00 (2006.01); F04B 9/02 (2006.01); F04B 53/08 (2006.01); F04B 1/04 (2006.01); F04B 53/16 (2006.01);
U.S. Cl.
CPC ...
F04B 53/18 (2013.01); F04B 1/00 (2013.01); F04B 1/0404 (2013.01); F04B 9/02 (2013.01); F04B 53/08 (2013.01); F04B 53/16 (2013.01);
Abstract
In a reciprocating pump which performs a pumping action by causing a reciprocating member to reciprocate as a driving part including a driving shaft accommodated in a driving part case is driven, a portion of the driving part is immersed in a lubricating oil in the driving part case, and one or more ribs are provided on an upper part of an inner wall forming the driving part case so as to be directed inward.