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:
Apr. 20, 2021
Filed:
Nov. 26, 2019
Riprup Company S.a., St. Peter Port, GG;
Monique Bissen, Pforzheim, DE;
Josef Schucker, Ronco Sopra Ascona, CH;
RIPRUP Company S.A., St. Peter Port, GG;
Abstract
A metering pump includes a chamber having a proximal portion and a distal portion. A piston is movable in the chamber. A drive drives the piston reciprocally form a proximal dead center to a distal dead center. The distal dead center is at the distal portion and the proximal dead center is located at the proximal portion. An outlet valve at the distal portion allows fluid flow from the chamber if the piston is moved in the distal direction and blocks a fluid flow into the chamber if the piston is moved into the proximal direction. A seal seals the chamber if the piston is positioned at the distal dead center. An inlet valve allows a flow of fluid into the chamber if the piston is moved in the proximal direction and blocks a fluid flow out of the chamber if the piston is moved in the distal direction.