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:
Jan. 09, 2024
Filed:
Jan. 07, 2021
Pixart Imaging Inc., Hsin-Chu, TW;
Chih-Hao Wang, Hsin-Chu, TW;
Yang-Ming Chou, Hsin-Chu, TW;
Chien-Yi Kao, Hsin-Chu, TW;
Shih-Jen Lu, Hsin-Chu, TW;
Chih-Ming Sun, Hsin-Chu, TW;
Hsin-Yi Lin, Hsin-Chu, TW;
PixArt Imaging Inc., Hsin-Chu, TW;
Abstract
A sprayer includes: a container arranged to contain liquid; a passage including a transparent window, a first opening, a second opening and a resonator, wherein when the liquid in the container is passed through the resonator via the first opening, the liquid is emitted as a gas via the second opening; and a detection unit disposed outside of the passage. The detection unit includes: a light source disposed to emit light through the light transparent window for illuminating the gas in the passage such that the gas will reflect the emitted light; an optical sensor disposed to detect a parameter of the reflected light through the transparent window; and a processor coupled to the optical sensor for stopping the resonator from generating the gas when the parameter of the reflected light is below a first threshold corresponding to a specific level of liquid within the container.