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. 10, 2020
Filed:
Mar. 04, 2019
Applicant:
Op-hygiene Ip Gmbh, Niederbipp, CH;
Inventors:
Heiner Ophardt, Arisdorf, CH;
Andrew Jones, St. Anns, CA;
Zhenchun Shi, Hamilton, CA;
Valery Ten, Hannon, CA;
Assignee:
OP-HYGIENE IP GMBH, Niederbipp, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 49/04 (2006.01); F04B 23/06 (2006.01); F04B 23/02 (2006.01); F04B 13/02 (2006.01); F04B 13/00 (2006.01); F04B 49/025 (2006.01); G01F 11/02 (2006.01); F04B 53/16 (2006.01); F04B 17/03 (2006.01);
U.S. Cl.
CPC ...
F04B 49/04 (2013.01); F04B 13/00 (2013.01); F04B 13/02 (2013.01); F04B 23/025 (2013.01); F04B 23/06 (2013.01); F04B 49/025 (2013.01); G01F 11/021 (2013.01); F04B 17/03 (2013.01); F04B 53/16 (2013.01);
Abstract
A piston pump arrangement that disables operation of the pump in the absence of an inlet liquid and also to a piston pump arrangement useful to discharge liquids from at least two sources and to disable discharge of all of the liquids when supply of liquid from at least one source is empty.