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:
Jun. 24, 2003
Filed:
Jun. 18, 2001
John E. Hathaway, Fort Wayne, IN (US);
Stephen R. Lund, Cary, NC (US);
Robert N. Mansur, Cary, NC (US);
Kraig J. Schlosser, Columbia City, IN (US);
John D. Buskirk, Bluffton, IN (US);
Tuthill Corporation, Hinsdale, IL (US);
Abstract
An air flow compensator for use with flow meters which includes a main slide element, a secondary slide element and first and second spring elements. The main slide element includes a magnetic insert in one end thereof and is movable toward a proximity sensor that detects the proximity of the magnetic insert. The first spring element biases both the main slide element and the secondary slide element away from the proximity sensor and the second spring element biases only the secondary slide element away from the proximity sensor. The secondary slide element is both movable together with the first slide element and independently movable with respect to the main slide element.