US 11,806,647 B2
Fluid purification device
Stephen P. Huda, Shelton, CT (US); Paul H. Adams, Monroe, CT (US); Robert F. Smith, Waterbury, CT (US); Qinxue Zhuo, Suzhou (CN); and Joseph K. Patterson, Monroe, CT (US)
Assigned to Unger Marketing International, LLC, Bridgeport, CT (US)
Filed by Unger Marketing International, LLC, Bridgeport, CT (US)
Filed on Oct. 14, 2021, as Appl. No. 17/501,445.
Application 17/501,445 is a division of application No. 16/287,178, filed on Feb. 27, 2019, granted, now 11,148,082.
Application 16/287,178 is a continuation in part of application No. 16/177,862, filed on Nov. 1, 2018, granted, now 11,154,800.
Application 16/177,862 is a continuation in part of application No. 29/615,291, filed on Aug. 28, 2017, granted, now D849886, issued on May 28, 2019.
Application 29/615,291 is a continuation in part of application No. 14/684,071, filed on Apr. 10, 2015, granted, now 10,414,671, issued on Sep. 17, 2019.
Prior Publication US 2022/0062805 A1, Mar. 3, 2022
Int. Cl. B01D 35/147 (2006.01); B01D 35/30 (2006.01); B01D 24/10 (2006.01); C02F 1/00 (2023.01); C02F 103/44 (2006.01)
CPC B01D 35/1475 (2013.01) [B01D 24/10 (2013.01); B01D 35/30 (2013.01); C02F 1/001 (2013.01); B01D 2201/162 (2013.01); B01D 2201/301 (2013.01); B01D 2201/307 (2013.01); C02F 2103/44 (2013.01); C02F 2201/005 (2013.01); C02F 2201/006 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method of operating a fluid purification device, comprising:
biasing a relief valve into a non-operational position, the relief valve providing a fluid path between a hollow interior of a tank of the fluid purification device and an exterior of the fluid purification device, the relief valve having a valve member and a cup portion arranged at an end of the valve member within the hollow interior, the cup portion including a recessed area on one end and a first seal on an opposite end, an opening of the recessed area facing the hollow interior of the tank;
transforming the relief valve to an operational position wherein the first seal is in sealing contact with a surface of the hollow interior of the tank in response to the tank being filled with a fluid, wherein a portion of the relief valve is positioned within the hollow interior in both the non-operational position and the operational position;
pressurizing the hollow interior during operation;
de-pressuring the hollow interior; and
unlocking a cover in response to moving the relief valve to a released position.