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US 2006/0133782 A1Published application
Air stream heater
OwnerRoland Ottoinventor
Life of this patent
Estimating the term…
Abstract
Air stream heater, wherein a bush made of copper brass (5) is located in a metal housing (4) and in the axial boring of the bush a heating cartridge (6) is arranged and on the outer casing of the latter a spiral groove is arranged.
Claims4
An air stream heater, wherein a bush made of copper or brass (5) is located in a metal housing (4) and in the axial boring of the bush a heating cartridge (6) is arranged and on the outer casing of the latter a spiral groove is arranged.
Dependencies are inferred from the claim text.