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Class Information
Number: 219/532
Name: Electric heating > Heating devices > With heater-unit housing, casing, or support means (e.g., frame and single sheet) > With open frame or grid-type support
Description: Subject matter wherein the significant support means is comprised of an open frame or grid with the heating unit or units supported on or by the grid members usually by tubular or spool type insulator means. The heating element or elements in this subclass are generally exposed straight resistance wire or coils but they may be sheathed, as in a "Calrod" type.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7618588 |
Disposable integrated heater and tube assembly for thermally-driven chemical reactions |
Nov. 17, 2009 |
| 7592572 |
Compressed cartridge heater |
Sep. 22, 2009 |
| 7557330 |
Heated floor panel with integrated controller having ground fault interrupt circuit |
Jul. 7, 2009 |
| 7539401 |
Heating unit and resin sheet heating apparatus |
May. 26, 2009 |
| 7365288 |
Heater assembly for dryer |
Apr. 29, 2008 |
| 7211772 |
Patterned electrical foil heater element having regions with different ribbon widths |
May. 1, 2007 |
| 7154072 |
Method of using open coil resistance heater in appliances with right and left hand installation capability |
Dec. 26, 2006 |
| 6906292 |
Sample tray heater module |
Jun. 14, 2005 |
| 6884974 |
Mica board electrical resistance wire heater, subassemblies, components, and methods of assembly |
Apr. 26, 2005 |
| 6770855 |
Methods of assembling open coil electrical resistance heaters involving butt welding of rails and using welded insulator support clips with bendable tabs |
Aug. 3, 2004 |
| 6600141 |
Thermostat assembly for a heater |
Jul. 29, 2003 |
| 6596974 |
Support apparatus for resistive coils and insulators in electric heaters |
Jul. 22, 2003 |
| 6593553 |
Heating coil assembly and methods for assembling the same |
Jul. 15, 2003 |
| 6593554 |
Method and apparatus for mounting a heater thermostat and temperature sensitive fuse |
Jul. 15, 2003 |
| 6433318 |
Electric heater assembly with in-line thermostat |
Aug. 13, 2002 |
| 6285013 |
Heat coil support assembly and method |
Sep. 4, 2001 |
| 6259070 |
Electrical resistance heater insulator |
Jul. 10, 2001 |
| 6150633 |
Heating element for a water-bed |
Nov. 21, 2000 |
| 6108940 |
Heater housing for an electric clothes dryer |
Aug. 29, 2000 |
| 6087639 |
Heating coil retainer bracket and method for manufacturing the same |
Jul. 11, 2000 |
| 6028296 |
Regenerative heater of diesel engine particulate trap and diesel engine particulate trap using the same heater |
Feb. 22, 2000 |
| 6023487 |
Process for repairing heat treating furnaces and heating elements therefor |
Feb. 8, 2000 |
| 6021155 |
Heat treating furnace having improved hot zone |
Feb. 1, 2000 |
| 6002116 |
Heater coil mounting arrangement |
Dec. 14, 1999 |
| 5935471 |
Heater coil support and mounting bracket |
Aug. 10, 1999 |
| 5925273 |
Electric multi-stage heater assembly |
Jul. 20, 1999 |
| 5895597 |
Electric heater support and mounting assembly |
Apr. 20, 1999 |
| 5889260 |
Electrical PTC heating device |
Mar. 30, 1999 |
| 5665261 |
Motor vehicle electric heating device having angled off metal heating plates arranged to mutually abut one another at opposite ends |
Sep. 9, 1997 |
| 5619613 |
Heating chamber with insulative shield panel and electric heating panels mounted on guard frames |
Apr. 8, 1997 |
| 5578232 |
Open-coil heater assembly and insulator therefor |
Nov. 26, 1996 |
| 5497394 |
Electric heater element support |
Mar. 5, 1996 |
| 5399838 |
Automotive heating apparatus |
Mar. 21, 1995 |
| 5377298 |
Cassette PTC semiconductor heating apparatus |
Dec. 27, 1994 |
| 5335310 |
Modular heating assembly with heating element support tubes disposed between hangers |
Aug. 2, 1994 |
| 5329098 |
Open coil heater for efficient transport |
Jul. 12, 1994 |
| 5324919 |
Open coil heater for efficient transport with nestable heating elements |
Jun. 28, 1994 |
| 5298723 |
Heater element support assembly |
Mar. 29, 1994 |
| 5291000 |
Snow melting heater mat apparatus |
Mar. 1, 1994 |
| 5235161 |
Detachable metallic safety guard for portable electric immersion heater |
Aug. 10, 1993 |
| 5233165 |
Electrical heating resistance using resistive elements made of carbon/carbon composite material |
Aug. 3, 1993 |
| 5187771 |
Heat processing apparatus utilizing a plurality of stacked heater holders |
Feb. 16, 1993 |
| 5134270 |
Heater assembly for use in clothes dryers |
Jul. 28, 1992 |
| 5124534 |
Heating coil support and insulation mechanism |
Jun. 23, 1992 |
| 5122640 |
Heating element coil support |
Jun. 16, 1992 |
| 5105066 |
Device comprising a heating sample carrier |
Apr. 14, 1992 |
| 5093558 |
Insulator support clip, insulator and assembly |
Mar. 3, 1992 |
| 5019797 |
Electrical resistance device |
May. 28, 1991 |
| 4994654 |
Heater coil mounting for a dryer |
Feb. 19, 1991 |
| 4892998 |
Semi-conductive electrical heating device with voids |
Jan. 9, 1990 |
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