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. 15, 2022
Filed:
May. 21, 2020
Derrick Du, San Bruno, CA (US);
Derrick Du, San Bruno, CA (US);
Other;
Abstract
The present invention comprises a novel foldable and intrinsically safe planar coiled inductance sensor to measure liquid depths, solids in liquid depths, and two different liquids depths. This invention is used in onsite wastewater management systems (OWTS) to monitor depths of solids, oil, and effluent in a wastewater tank. The inductors are configured to allow for solids, liquids and gases to surround the coils. A number of coils are hung in series from near the OWTS tank lid to at least 18 inches below the output baffle to measure the different materials at different depths in the OWTS tank. The inductance sensors are capable of use with various materials to measure solids, oil, and effluent depths in an OWTS tank.