US 11,883,551 B2
Systems and methods for bulk sterilization using ozone
Dmitry Medvedev, Fort Worth, TX (US); and Alex Tsipenyuk, Huntingdon Valley, PA (US)
Assigned to OWS AGRI LIMITED, London (GB)
Appl. No. 16/767,363
Filed by OWS AGRI LIMITED, London (GB)
PCT Filed Jan. 30, 2018, PCT No. PCT/US2018/015846
§ 371(c)(1), (2) Date May 27, 2020,
PCT Pub. No. WO2019/151976, PCT Pub. Date Aug. 8, 2019.
Prior Publication US 2020/0384142 A1, Dec. 10, 2020
Int. Cl. A61L 2/20 (2006.01); A61L 2/24 (2006.01); G05D 7/06 (2006.01); G05D 11/00 (2006.01); A61L 2/26 (2006.01); A61L 101/02 (2006.01); A23L 3/3409 (2006.01); A23L 3/3445 (2006.01)
CPC A61L 2/202 (2013.01) [A61L 2/24 (2013.01); A61L 2/26 (2013.01); G05D 7/0635 (2013.01); G05D 11/00 (2013.01); A23L 3/3445 (2013.01); A23L 3/34095 (2013.01); A23V 2002/00 (2013.01); A61L 2101/02 (2020.08); A61L 2202/11 (2013.01); A61L 2202/122 (2013.01); A61L 2202/14 (2013.01); A61L 2202/15 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A sterilization system comprising:
an ozone generator for generating a flow of ozone;
a buffer chamber in fluid communication with the ozone generator, the buffer chamber for storing the flow of ozone received from the ozone generator;
an ozone cuvette in fluid communication with the buffer chamber, the ozone cuvette for monitoring a concentration of ozone in a flow of ozone passing from the buffer chamber to the ozone cuvette;
a treatment chamber for receiving a material for sterilization, the treatment chamber being in fluid communication with the ozone cuvette for receiving a flow of ozone from the ozone cuvette;
one or more valves coupled between the buffer chamber and the ozone cuvette, and between the ozone cuvette and the treatment chamber, each valve being selectively movable between an open position and a closed position;
a controller in communication with the one or more valves for selectively and independently moving each of the valves between the open and closed positions;
wherein the sterilization system includes first and second operating modes, in the first operating mode, the treatment chamber is isolated from the ozone generator and the buffer chamber such that ozone is not being supplied to the treatment chamber, and in the second operating mode, the treatment chamber is in communication with the ozone generator and the buffer chamber such that ozone is being supplied to the treatment chamber and a flow of air is supplied to an air supply line in communication with the treatment chamber;
the system further comprising:
a blower and a flow meter coupled to the line of air for controlling a flow rate of the flow of air;
a humidifier and an air cooler in fluid communication with the air supply line for monitoring and controlling a humidity and a temperature, respectively, of the air; and
a flow control valve disposed in the air supply line, the flow control valve positioned downstream of the humidifier, the air cooler, the blower and the flow meter; wherein the flow of ozone is directed to the air supply line downstream of the flow control valve and upstream of the treatment chamber.