MUMBAI, India, Nov. 2 -- Intellectual Property India has published a patent application (202541040710 A) filed by A. O. Smith India Water Products Private Limited on April 28, 2025, for Dual-Pass Under-Sink Water Filtration Device.
Inventors include Neeraj Gupta; Dhanish Dharman; and Lincy D.
The application for the patent was published on October 30, 2026, under issue no. 44/2026.
Abstract: ABSTRACT “DUAL-PASS UNDER-SINK WATER FILTRATION DEVICE” The present disclosure relates to a dual-pass under-sink water filtration device (100) and a corresponding method for purifying and dispensing water. The device comprises an array of filters, a pumping unit (104), a hydropneumatic storage tank (106), a faucet (112), and an ultraviolet (UV) column (102) incorporating a UVC LED and power backup unit. A flow train including a first non-return valve (108), a second non-return valve (110), connecting pipes (114), and a sensor (116) is configured to enable dual-pass flow of purified water through the UV column (102). The arrangement ensures that water is disinfected prior to storage and re-disinfected prior to dispensing, thereby mitigating microbial re-contamination. The sensor (116) activates the UVC LED based on water flow, enabling instant disinfection without warm-up. The power backup unit ensures uninterrupted UV operation during outages. The system enhances safety, reliability, and quality of stored and dispensed water. Figure of Abstract: Fig. 1
Disclaimer: Curated by HT Syndication.
