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:
Jan. 06, 1987
Filed:
Dec. 13, 1985
Siegfried Anderl, Amstetten, DE;
Abstract
In a coffee percolator having a brewing section, different operating positions are controlled by a control piston driven by a motor by the action of suitable control means. The control piston moves through a coffee meal supply opening and a coffee-grounds flushing opening, both of which are provided in said brewing section, for selectively or contemporaneously opening and closing these openings in the different operating positions. In a brewing position the control piston closes both openings, so that an overpressure is generated within the brewing section. Subsequent to the brewing operation this overpressure is relieved in a relief position by opening the flushing opening while said supply opening remains closed. The relief position is succeeded by a flushing position, in which the supply opening is likewise opened, so that the exhausted coffee-grounds can be flushed out. In one embodiment, the brewing position is followed by the introduction of a short-time flushing water jet for loosening and agitating the coffee-grounds.