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:
Aug. 30, 1977
Filed:
May. 14, 1976
Werner Kohlstette, Oelde, DT;
Gunthard Pautsch, Oelde, DT;
Westfalia Separator AG, Oelde, DT;
Abstract
A centrifuge constructed for the intermittent discharge of sludge having a main piston valve 3 for opening and closing of sludge discharge passageways 4, is provided with an auxiliary piston valve 9 mounted on the main piston valve 3 and having an opening chamber 11 and closing chamber 12, supplied with control fluids, so that the operation of auxiliary piston valve 9 is cumulative to the operation of the main piston valve 3 on both opening and closing of the main piston valve. The auxiliary piston valve 9 is mounted 10, 10a on the main piston valve 3 so that the auxiliary piston valve can shift on the main piston valve 3 to open and close dumping passageways 19 provided for emptying of the control chamber 8 of the main piston valve 3.