US Patent:
20120186273, Jul 26, 2012
Inventors:
Vincent Arrigo - Sarasota FL, US
Glenn Akhavein - Bradenton FL, US
Robert Brady - Sarasota FL, US
International Classification:
F25B 21/02
F25D 11/00
B01D 53/02
F25D 23/02
Abstract:
The invention is directed to a produce chamber having an outer housing with a first panel, a second panel, and a base plate inter-dispersed between both panels. A door is placed between both panels to deposit and remove produce. Positioned within the first panel is a refrigeration system, which includes both ammonium absorption (AAF) system and a Peltier thermoelectric plate (TE) system. The AAF system includes a contact plate which communicates with a series of ducts having a first and second channel. The first channel circulates ammonia, while the second draws and then cools outside air for introduction into the produce chamber. The TE system is positioned proximate the contact plate to afford additional cooling, which has a plurality of parallel thermoelectric plates. A digital controller operates both the AAAF and TEC systems. Such controller also operates a scrubber, which includes zeolite powder, to remove ethylene.