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:
May. 31, 2005
Filed:
Aug. 07, 2003
Reto Schöb, Rudolfstetten, CH;
Reto Schöb, Rudolfstetten, CH;
Levitronix LLC, Waltham, MA (US);
Abstract
A measuring apparatus () for determining the flow (Q) of a fluid (). The apparatus has a hollow body (), with an inflow () and an outflow () for the fluid (). A magnetic sample () is movably arranged in the hollow body () and can be acted upon with a working pressure by the fluid (). The measuring apparatus () further has at least one position sensor () to determine the position of the magnetic sample (), an electromagnet () to exert a magnetic force on the magnetic sample (), and a control device () for the electromagnet () which is connected signal-wise to the position sensor (). The control device () includes regulating means () which control the electromagnet () with the aid of a signal of the position sensor () so that the magnetic sample () is held in a position (X) against the working pressure, with the magnetic sample () being designed and arranged such that the fluid () can flow through the hollow body () from the inflow () to the outflow ().