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:
Dec. 31, 1991
Filed:
Oct. 30, 1990
Wolfgang Muller, D-4600 Dortmund 1, DE;
Other;
Abstract
The microfiltration of a turbid liquid, especially the microfiltration of a fermentation liquid to recover beer from a suspension containing excess yeast is controlled by measuring a flow velocity (v) and a pressure drop (.DELTA.p) and calculating from the flow velocity (v) and the pressure drop (.DELTA.p) by an apparatus-characteristic function F (v, .DELTA.p) containing the flow velocity (v) and pressure drop (.DELTA.p) as variables a value of concentration of the turbidity-producing solids in the retentate stream. The value of the concentration as thus determined forms an actual value which is compared with a setpoint value of the concentration to determine a difference which is used to control the rate at which the concentrate stream is withdrawn from the retentate stream.