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:
Jul. 14, 2015
Filed:
Apr. 19, 2013
Buerkert Werke Gmbh, Ingelfingen, DE;
Christoph Hettinger, Ingelfingen, DE;
Volker Lienhardt, Kupferzell/ OT Westernach, DE;
John Van Loon, Vlaardingen, NL;
BUERKERT WERKE GMBH, Ingelfingen, DE;
Abstract
A pneumatic dosing unit includes a housing having a first housing part for a pump-fluid receiving pump channel and a second housing part for dosing-fluid receiving channels. A cavity is formed between the housing parts. A flexible diaphragm is clamped between the housing parts and divides the cavity into a pump chamber and a dosing chamber that are fluidically separated from each other. At least one feed channel and at least one drain channel in the second housing part lead to the dosing chamber and start from the dosing chamber, respectively. Diaphragm valves in the feed channel and in the drain channel are spaced apart from the pump chamber and the dosing chamber and are controllable via control channels in the first housing part. The diaphragm and the diaphragm valves are arranged in such a way that dosing fluid does not come into contact with the first housing part.