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:
Apr. 14, 2026
Filed:
Oct. 17, 2023
Shanghai Kohler Electronics, Ltd., Shanghai, CN;
Bin Cao, Shanghai, CN;
Jianlin Tang, Shanghai, CN;
Shanghai Kohler Electronics, Ltd., Shanghai, CN;
Abstract
A photoelectric flowmeter circuit includes a circuit power supply end. The photoelectric flowmeter circuit also includes a light-emitting element, including a first end electrically connected to the circuit power supply end and a second end electrically connected to ground. The photoelectric flowmeter circuit also includes a photosensitive triode, including a collector electrically connected to the circuit power supply end and an emitter electrically connected to the ground. The photoelectric flowmeter circuit also includes a direct current (DC) blocking circuit. The photoelectric flowmeter circuit also includes a circuit output end electrically connected to the collector of the photosensitive triode through the DC blocking circuit.