Rapid cycle treatment oven

Details Rapid cycle treatment oven Rapid cycle treatment oven

1995-06-29

1998-08-04

Doerrler, William

Heating

Heat generator with an associated work support or heat...

434 4, 434202, F24J 300, F27D 1300

Patent

active

057884846

ABSTRACT:
The invention provides an oven which can be used to rapidly heat and cool a workpiece. In one embodiment, the oven includes a first duct which defines an initial leg of an enclosed air flow path and which has an inner panel and a heat exchanger. This first duct has an inlet end and an outlet end, the inlet end of which is connected to a temperature-controlled air supply. The oven also includes a second duct which defines a final leg of the enclosed air flow path and which has an inner panel spaced from the first duct's inner panel to define an oven cavity. The oven also has a connecting conduit connecting the outlet end of the first duct to the second duct and which defines an intermediate leg of the enclosed air flow path. In a preferred embodiment, the first duct is the lower of the two ducts and includes a plurality of holes through at least the inner panel of the duct. A plurality of selectively actuatable lifting pins extend through these holes in the first duct and the pins are adapted to lift a workpiece upwardly off of the inner panel.

REFERENCES:
patent: 2651271 (1953-09-01), Naylor
patent: 2961976 (1960-11-01), Ooms
patent: 3920383 (1975-11-01), Kerr
patent: 4218211 (1980-08-01), Caplan
patent: 4480628 (1984-11-01), Simpson
patent: 4740158 (1988-04-01), Johnson
patent: 5100502 (1992-03-01), Murdoch et al.
patent: 5273588 (1993-12-01), Foster et al.
patent: 5552955 (1996-09-01), Mashiro et al.

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