US 9,814,103 B2
Induction dryer
Timothy E. Wilson, Wakeman, OH (US); Howard Podolny, Medina, OH (US); and Raymond J. Baxter, Vermilion, OH (US)
Assigned to Nordson Corporation, Westlake, OH (US)
Filed by Nordson Corporation, Westlake, OH (US)
Filed on Jun. 6, 2014, as Appl. No. 14/298,345.
Application 13/568,448 is a division of application No. 12/195,626, filed on Aug. 21, 2008, granted, now 8,258,445, issued on Sep. 4, 2012.
Application 12/195,626 is a division of application No. 10/527,860, granted, now 7,432,480, issued on Oct. 7, 2008, previously published as PCT/US03/38942, filed on Dec. 9, 2003.
Application 14/298,345 is a continuation of application No. 13/568,448, filed on Aug. 7, 2012, granted, now 8,796,601.
Claims priority of provisional application 60/431,938, filed on Dec. 9, 2002.
Prior Publication US 2014/0284322 A1, Sep. 25, 2014
Int. Cl. H05B 6/02 (2006.01); H05B 6/10 (2006.01); F26B 3/18 (2006.01)
CPC H05B 6/10 (2013.01) [F26B 3/18 (2013.01); H05B 6/101 (2013.01); H05B 6/103 (2013.01); H05B 6/108 (2013.01); Y10T 29/49815 (2015.01)] 22 Claims
OG exemplary drawing
 
1. An induction heating apparatus for heating workpieces moving through the apparatus, the apparatus comprising:
a housing;
a tube positioned within the housing and defining a generally enclosed space in the housing through which the workpieces travel as the workpieces move through the apparatus, the tube having an inlet end for receiving workpieces and an outlet end for discharging workpieces;
an inlet hub coupled to an opening in the housing, the inlet hub defining a first opening for receiving the workpieces prior to being received by the tube, the inlet hub configured to support the tube within the housing, and the inlet hub further defining a heated air inlet opening configured to enable air to flow therethrough from an interior of the housing to the enclosed space;
an induction coil configured to heat the workpieces as the workpieces move through the enclosed space;
a first fan operative to move air past power and control circuitry to a location within the housing; and
a second fan operative to move air through the heated air inlet opening into the enclosed space of the tube from the interior of the housing,
wherein the outlet end of the tube enables air to flow out of the enclosed space to an exterior of the housing.