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:
Sep. 27, 2016
Filed:
Jan. 14, 2012
Hassan Ghodsi-kameneh, Offenburg, DE;
Alexander Hahn, Eigeltingen-Heudorf, DE;
Hassan Ghodsi-Kameneh, Offenburg, DE;
Alexander Hahn, Eigeltingen-Heudorf, DE;
EBM-PAPST ST. GEORGEN GmbH & Co. KG, St. Georgen, DE;
Abstract
A metering system for metering a liquid has an electric motor () for setting a desired feed rate, by modifying the rotation speed of the electric motor. It furthermore has an eccentric drive (), drivable by said electric motor (), for a pump () that has two delivery directions. It also has a pump ring () made of an elastomeric material and a stationary ring () which is arranged relative to the pump ring () and to the eccentric drive () in such a way that a pump chamber (), extending in a circumferential direction, is formed between the stationary ring () and pump ring (). The chamber changes shape upon rotation of the electric motor () in order to deliver a liquid to be metered through the pump chamber (). A stationary seal () is provided in the pump chamber (), between two fluid ports.