US 12,103,839 B2
Liquid cryogen delivery and injection control apparatus
Simon Shamoun, Acworth, GA (US); Isaiah Edmonds, West Windsor, NJ (US); and Michael Newman, Hillsborough, NJ (US)
Assigned to Messer Industries USA, Inc., New Castle, DE (US)
Filed by Messer Industries USA, Inc., Bridgewater, NJ (US)
Filed on Jul. 28, 2020, as Appl. No. 16/940,424.
Prior Publication US 2022/0033239 A1, Feb. 3, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B67D 1/00 (2006.01); A23B 4/06 (2006.01); A23B 4/09 (2006.01); A23L 3/00 (2006.01); A23L 3/36 (2006.01); A23L 3/375 (2006.01); A47J 43/07 (2006.01); B67D 7/08 (2010.01)
CPC B67D 1/0071 (2013.01) [A23B 4/066 (2013.01); A23B 4/09 (2013.01); A23L 3/001 (2013.01); A23L 3/363 (2013.01); A23L 3/375 (2013.01); A47J 43/0716 (2013.01); B67D 1/0003 (2013.01); B67D 1/0066 (2013.01); B67D 1/0076 (2013.01); B67D 1/0077 (2013.01); B67D 7/08 (2013.01); A23V 2002/00 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A delivery apparatus for delivering liquid cryogen to a chilling application comprising:
a liquid cryogen feed tank;
a liquid cryogen conduit in fluid communication between the liquid cryogen feed tank and the chilling application;
a vessel in fluid communication with the liquid cryogen conduit and the liquid cryogen feed tank:
a weight measurement device for controlling a weight of the liquid cryogen to be delivered to the chilling application through the liquid cryogen conduit, the weight measurement device selected from the group consisting of a weigh scale supporting the vessel, and a load cell supporting the vessel;
a flow controller for controlling a speed of delivery of the liquid cryogen to the chilling application;
wherein the chilling application uses the liquid cryogen to produce an exhaust gas;
a high-pressure gaseous cryogen tank in fluid communication with the vessel via a gas conduit, wherein a pressure control device in the gas conduit between the high-pressure gaseous cryogen tank and the vessel is responsive to the temperature of the exhaust gas; and
a device for measuring a temperature of the exhaust gas, the device in operative communication with the flow controller;
wherein the flow controller is configured to vary the speed of delivery of the liquid cryogen in response to the temperature of the exhaust gas.