US 12,292,201 B2
Air flow control technology for ovens
Robert Hanson, Hudson, WI (US); Noel Johnson, Stoughton, WI (US); and Michael Powis, Oak Grove, MO (US)
Filed by QuickFire Technologies, LLC, Hudson, WI (US)
Filed on Jun. 24, 2021, as Appl. No. 17/357,846.
Claims priority of provisional application 63/043,553, filed on Jun. 24, 2020.
Prior Publication US 2022/0018548 A1, Jan. 20, 2022
Int. Cl. F24C 15/32 (2006.01); F27D 7/04 (2006.01); G05D 7/06 (2006.01); A21B 1/24 (2006.01); F27D 7/02 (2006.01)
CPC F24C 15/322 (2013.01) [F27D 7/04 (2013.01); G05D 7/0682 (2013.01); A21B 1/24 (2013.01); F27D 2007/026 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An oven apparatus, comprising:
a processing chamber adapted to contain food product to be processed,
one fan disposed above the processing chamber;
two air supply slots, separated a predetermined distance from each other, for continuously transmitting air generated by the fan to the processing chamber, each air supply slot having an initial predetermined supply air flow area;
a supply damper disposed proximate each air supply slot for variably controlling the size of the supply air flow area of the air supply slot, wherein the supply dampers are independently controllable;
at least two air return slots for returning air from the processing chamber to the fan, the at least two air return slots being disposed between the two air supply slots and off-center with respect to the fan, the two air supply slots further being disposed directly above the processing chamber and through a top side of the processing chamber, each air return slot having a predetermined return air flow area; and
a return damper disposed proximate each air return slot for controlling the size of the return air flow area of the respective air return slot;
whereby, in use, product in the processing chamber is exposed to air flow directly from the air supply slots simultaneously.