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Class Information
Number: 392/379
Name: Electric resistance heating devices > Heating devices (class 219 subclass 200) > Concentrated heated air stream (i.e., blast)
Description: Subject matter under Class 219, ... wherein the heating device includes means for blowing air through a passage in which an electrical resistance heating element is mounted for producing an intensified or a jet-like flow of heated air.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7474842 |
Thermal detonator with multiple light sources and reflective enclosure |
Jan. 6, 2009 |
| 7471883 |
Baby warmer adapted for indirect illumination and method of use |
Dec. 30, 2008 |
| 7465904 |
Portable hair iron utilizing anions and moisture to strengthen and reduce damage to hair |
Dec. 16, 2008 |
| 7361868 |
Electrical heating device, especially for motor vehicles |
Apr. 22, 2008 |
| 7231140 |
System for removing snow and ice from a surface |
Jun. 12, 2007 |
| 7212734 |
Portable carbon monoxide generation apparatus for testing CO sensors, detectors and alarms |
May. 1, 2007 |
| 7187856 |
Compact integrated forced air drying system |
Mar. 6, 2007 |
| 7180039 |
Heater with burnout protection |
Feb. 20, 2007 |
| 7133604 |
Infrared air heater with multiple light sources and reflective enclosure |
Nov. 7, 2006 |
| 7123822 |
Air heater |
Oct. 17, 2006 |
| 7075034 |
Air supplying device for vehicle seat with airstream adjustment responsive to motor vehicle velocity |
Jul. 11, 2006 |
| 7039301 |
Method and apparatus for hand drying |
May. 2, 2006 |
| 7024104 |
Boilerless steamer apparatus |
Apr. 4, 2006 |
| 6987928 |
Recirculating air snow melting pad system |
Jan. 17, 2006 |
| 6931205 |
Compact integrated forced air drying system |
Aug. 16, 2005 |
| 6873790 |
Laminar air flow, low temperature air heaters using thick or thin film resistors |
Mar. 29, 2005 |
| 6871013 |
Heat nozzle for welding floor seams |
Mar. 22, 2005 |
| 6739071 |
Combined diffuser and concentrator for a hair dryer |
May. 25, 2004 |
| 6737615 |
Heat conductor coil for heating a flowing gaseous medium and electrical resistance heating element |
May. 18, 2004 |
| 6722148 |
Vehicle seat air conditioning system having electric heater and blower unit |
Apr. 20, 2004 |
| 6700780 |
Apparatus for cooling electronics |
Mar. 2, 2004 |
| 6665492 |
High-velocity electrically heated air impingement apparatus with heater control responsive to two temperature sensors |
Dec. 16, 2003 |
| 6621056 |
Heater assembly with a non-uniform cross section |
Sep. 16, 2003 |
| 6601318 |
Dryer unit |
Aug. 5, 2003 |
| 6593547 |
Air gap deicing device |
Jul. 15, 2003 |
| 6304720 |
Heat shrinking heat gun with fan-shaped nozzle with temperature and/or airflow variation along the nozzle |
Oct. 16, 2001 |
| 6236030 |
Method and means for hot-air cutting |
May. 22, 2001 |
| 6201930 |
Chip removal and replacement system |
Mar. 13, 2001 |
| 6134387 |
Process and device for hot gas welding of plastic sheets with electrically heated tubular gas flow conduit |
Oct. 17, 2000 |
| 6038782 |
Blow dryer having airflow control means |
Mar. 21, 2000 |
| 6033213 |
Heater for bending plastic pipe |
Mar. 7, 2000 |
| 6035097 |
Electrical heating unit with two concentrically disposed heating elements |
Mar. 7, 2000 |
| 5991506 |
Dryer unit |
Nov. 23, 1999 |
| 5987216 |
Defrosting, deicing, and heating device |
Nov. 16, 1999 |
| 5963709 |
Hot air blower having two porous materials and gap therebetween |
Oct. 5, 1999 |
| 5930454 |
Refrigerator having an apparatus for thawing frozen food |
Jul. 27, 1999 |
| 5930455 |
Automobile fog clearing system |
Jul. 27, 1999 |
| 5901270 |
Apparatus for hot fluid trimming of plastic molded articles |
May. 4, 1999 |
| 5895597 |
Electric heater support and mounting assembly |
Apr. 20, 1999 |
| 5879516 |
Kugelrohr or distillation apparatus |
Mar. 9, 1999 |
| 5846476 |
Optical curing process for intergrated circuit package assembly |
Dec. 8, 1998 |
| 5810620 |
Electric connector provided with a shielding part for electrical contacts at the distal end of the plug |
Sep. 22, 1998 |
| 5798735 |
Hot air de-icing of satellite antenna with cover |
Aug. 25, 1998 |
| 5778144 |
Electric fan heater |
Jul. 7, 1998 |
| 5758815 |
Solder apparatus and method |
Jun. 2, 1998 |
| 5758017 |
Apparatus and method for heating eyeglass frames |
May. 26, 1998 |
| 5729908 |
Boot drying apparatus |
Mar. 24, 1998 |
| 5729238 |
Hot air de-icing of satellite antenna with cover |
Mar. 17, 1998 |
| 5719493 |
Electrical device |
Feb. 17, 1998 |
| 5702671 |
Gas chromatography transfer line |
Dec. 30, 1997 |
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