Independently operating portable radiator

Kind of economical household ventilator

Lamp heat generating apparatus

Method of obtaining saving of energy and apparatus for utilizati

Oil radiator with welded plate radiating elements having folded

Omnidirectional space heater having adjustable, arcuate baffles

Over-heat protection for a portable space heater with thermally

Phase shifter having differently shaped interactive elements...

Photoemission radiant heater

Pivotable heater

Portable electric heater deenergized by a tip-over responsive ac

Portable electric heater or floor lamp

Portable electric heater with digital display

Portable electric heater with vertical heated air outlet

Portable electric space heater

Portable electric space heater with air cooled outer wall surfac

Portable environmental conditioning device with presence detecto

Portable flue heater to reduce or eliminate downdrafts

Portable hemispheric electric space heater with circumferential

Portable pedestal electric heater