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. 11, 2008
Filed:
Jan. 19, 2006
Yves Zweifel, La Tour-de-Peilz, CH;
Yves Zweifel, La Tour-de-Peilz, CH;
Maillefer SA, Ecublens, CH;
Abstract
A device for measuring a mass flow rate of a flow of particulate material which moves in a predetermined direction. The device includes a weighing cell, a first apparatus, a second apparatus, and a third apparatus. The weighing cell includes a tubular wall and is disposed to be passed through by a flow of particulate material. The first apparatus weighs the weighing cell and the quantity of particulate material contained in the weighing cell and produces a first signal. The second apparatus measures the speed of flow of the particulate material which flows through the weighing cell and produces a second signal. The third apparatus calculates the bulk density of the particulate material, calculates the mass flow rate of particulate material which flows through the weighing cell, and produces a third signal representing the mass flow rate of particulate material which flows through the weighing cell.