Patent ID: 8890036
Filing Date: 2014-11-18
Classification: F27B

Abstract:
1. A vacuum oven comprising: a body; a vacuum chamber subassembly having a first end and a second end, the vacuum chamber subassembly including a top chamber cover fastened to the first end, the vacuum chamber subassembly being coupled to the body, the vacuum chamber subassembly being generally cylindrical having an opening formed at the second end providing access to an interior vacuum chamber; a muffle fastened to the top chamber cover and suspended therefrom within the interior vacuum chamber, the muffle being generally cylindrical having an opening providing access to an interior heating chamber; a heating element under regulatable power located within the muffle proximate to the interior heating chamber; a heat distribution sleeve conformed to the shape of the interior heating chamber, the heat distribution sleeve and the interior heating chamber being coaxially arranged, the heat distribution sleeve forming a gap of substantially constant size between the heat distribution sleeve and the heating element, the heat distribution sleeve including a thermal conductive material which absorbs and re-radiates heat emitted from the heating element; a furnace chamber formed within the heat distribution sleeve; a plurality of hanging rods suspending the heat distribution apparatus from the muffle; and a firebrick base secured to the body, the firebrick base supporting a work piece.