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:
Dec. 28, 2010
Filed:
Dec. 12, 2008
John Randel Lacaze, Owens Cross Roads, AL (US);
John Randel LaCaze, Owens Cross Roads, AL (US);
INX International Ink Co., Owens Cross Roads, AL (US);
Abstract
High resolution liquid level gauge includes a float member with a buoyant, free end, and an opposing end rotatably attached to an interior surface of a reservoir such that the float member is free to rotate about an axis of rotation. A single magnet defining a single magnetic field is attached to the pivoting end such that the magnetic field is centered on the axis of rotation and rotates with the float member. A magnetic rotary encoder chip configured to detect angular position of the magnetic field is positioned to be aligned with the axis of rotation on the exterior of the reservoir at a distance from the magnet to detect the magnetic field. The encoder is configured to provide a signal representative of the angle of the magnetic field. A computer processor determines the liquid level within the reservoir based upon the signal.