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. 27, 2018
Filed:
Sep. 04, 2014
Schwing Bioset, Inc., Somerset, WI (US);
Charles M. Wanstrom, Maplewood, MN (US);
Thomas M. Anderson, Naples, FL (US);
Shahzad M. Khan, Little Canada, MN (US);
Michael M. Mott, Hudson, WI (US);
Schwing Bioset, Inc., Somerset, WI (US);
Abstract
A sludge flow monitoring system and method measures volume of sludge pumped by a positive displacement pump through a pipeline by determining a fill percentage during each pumping cycle. The start and end of each piston stroke are identified by hydraulic system sensors. The fill percentage is determined based upon a first summation of periodic piston speed command values from the start of a pumping stroke to the end of a pumping stroke, and a second summation of periodic piston speed command values from a poppet valve opening indicating output flow from the pump to the end of the pumping stroke.