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. 21, 2022
Filed:
Jan. 08, 2019
Pratt & Whitney Canada Corp., Longueuil, CA;
Andrew Ghattas, La Prairie, CA;
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Abstract
Herein provided is a fluid level sensor and associated systems and methods. The fluid level sensor comprises a floater movable along a floater path in response to changes in a fluid level and a sensing circuit disposed along the floater path. The floater path has a first end associated with a low fluid level and an opposite second end associated with a high fluid level. The sensing circuit comprises first and second electrically-coupled circuit branches with first and second sensing terminals arranged proximate to the first end of the floater path, a plurality of passive elements connected in series along the first circuit branch, and plurality of switching elements each connected in parallel between the second circuit branch and the first circuit branch at connection points along the first circuit branch between pairs of adjacent passive elements, the switching elements configured for being actuated by movement of the floater.