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:
Apr. 26, 1977
Filed:
Oct. 06, 1975
Robert A Reid, Charlton City, MA (US);
CPC Engineering Corporation, Sturbridge, MA (US);
Abstract
A cone pump, fundamentally in design based on an Archimedes screw, comprising a tubular member having a helical screw mounted therein, integrally joined thereto, the flights of the screw being radially inclined to the longitudinal axis of the tube, the entire structure having a central longitudinal opening, the end discharge being characterized by a liquid seal, the structure being designed to have its lower or intake end immersed in liquid, and carrying solids such as watery sewage sludge, and, by rotation, to lift the sludge through elevations as high as 20 and 30 foot head (6 to 10 meters) through an angle of elevation of from 30.degree. to 50.degree., the preferred range being 36.degree. to 45.degree..