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:
Mar. 31, 1987
Filed:
Jan. 31, 1986
Leonard Shapiro, Doylestown, PA (US);
Pennwalt Corporation, Philadelphia, PA (US);
Abstract
Screw conveyor of solid bowl centrifuge has its flight member modified at the bowl dry beach area by welding sheet metal, for example, to trailing surfaces of the flight forming a chamber for rinse liquid driven thereinto. Leading or working surfaces of the flight are provided with a plurality of series of orifices per 360.degree. revolution thereof, each series comprising spaced orifices extending inwardly from a distal portion thereof and preferentially angled therethrough. Overflow passageways with cooperating baffles are provided. Thus, rinse liquid passes onto solids pile surfaces through orifices immediately inwardly thereof as well as through orifices submerged by the solids for passage of rinse liquid thereinto.