US 12,226,040 B2
Steam oven with check valve at water inlet for steam backflow prevention
Prem Dhanasekaran, Tamil Nadu (IN); Ankur Garg, Pune (IN); Tushar Sopan Jadhav, Pune (IN); Suraj Narendra Kadam, Pune (IN); Harichandra Prabhakar Lambate, Pune (IN); Vishal Shankar Marathe, Pune (IN); Vishal Shrimandhar Masutage, Sangli (IN); Mohasin Nasir Mulla, Pune (IN); Ravindra Balkrishna Salunkhe, Satara (IN); Sujay Sampat Shelke, Pune (IN); and Swapnil Anant Wadkar, Phaltan (IN)
Assigned to WHIRLPOOL CORPORATION, Benton Harbor, MI (US)
Filed by WHIRLPOOL CORPORATION, Benton Harbor, MI (US)
Filed on Jan. 4, 2022, as Appl. No. 17/567,967.
Prior Publication US 2023/0210297 A1, Jul. 6, 2023
Int. Cl. A47J 27/04 (2006.01); F22B 37/60 (2006.01); F24C 15/00 (2006.01)
CPC A47J 27/04 (2013.01) [F22B 37/60 (2013.01); F24C 15/003 (2013.01); A47J 2027/043 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An oven comprising:
a cooking chamber;
a cabinet at least partially surrounding the cooking chamber;
a water reservoir having a reservoir inlet and a reservoir outlet, the oven being configured to extract water from the water reservoir via the reservoir outlet to supply steam to the cooking chamber;
a water fill assembly including an opening, a water-receiving cavity and a fill outlet from the water-receiving cavity, the water fill assembly defining a fluid flow path in from the opening and out through the fill outlet;
a check valve, including a body extending outwardly from and in fluid communication with the fill outlet so as to be positioned downstream of the fluid flow path defined by the water fill assembly, the check valve configured in a closed state under a force of gravity on at least a portion thereof and opening by a flow force of fluid out of the fill outlet and through the check valve; and
a conduit connecting the check valve with the water reservoir inlet downstream of the fill outlet.