Hot air oven

Claim 1

An oven for treating of food comprising in combination a well of metal sheet material having a bottom and side walls and open at the top thereof, a removable insert of metal sheet material having vertical side wall means and a bottom and an open mouth at the top thereof in said well, said side wall means and said bottom of said insert being spaced from the side walls and the bottom of the well to define air circulating passages therebetween with the top of the circulating passages being open, said insert having gill openings formed in the portion of the vertical wall means of the insert defining the air passages and disposed substantially uniformly along and around the vertical limiting surfaces of said insert at different levels thereof and having the mouth thereof facing upwards on the outer side of the insert to divert air from said passages into the interior of the insert, said insert further having means for defining opening means at the bottom thereof for communicating the air passages with the interior of said insert, a lid removably fitted over the well to form a top closure thereof, an air circulating fan mounted on the lower side of the lid for drawing air upwardly out of the insert through the open mouth thereof, said fan propelling the air laterally to the open top of the air passages for circulation downwardly through the air passages for entry into the interior of the insert for circulation over the object to be heated, an electrical heater mounted on the lower side of the lid for heating air circulated by said fan, and said insert being provided with air previous support means for supporting the object to be heated.