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. 27, 1987
Filed:
Oct. 15, 1985
Ernst Fuchs, Schmerikon, CH;
Karl Fitzi, Hombrechtikon, CH;
Mecapec S.A., Schmerikon/SG, CH;
Abstract
Apparatus for mechanical purification of waste water has a stationary hollow shaft which is installed in a vessel for waste water and carries a variable number of hollow drum-shaped frames with pairs of filters adjacent to the openings in their sidewalls. Waste water is drawn into the interior of the frames by a pump which is connected to one end of the shaft whereby the impurities deposit at the outer sides of the filters. Such impurities are removed from time to time by suction heads which are adjacent to the outer sides of the filters and are connected to a single sludge pump by discrete conduits, one for each frame. The inner sides of the respective filters are then sprayed by clean water which promotes segregation of impurities and their entry into the suction heads. Indexible valving elements are provided to connect conduits for admission of clean water into selected frames with a single source of clean water and to connect selected conduits for removal of impurities with the sludge pump.