Patent · US Expired

Heater with a pretensioned heating element

US5393958A · kind A · utility

14Cited by

5References

29Claims

0Family size

Assignee

E.G.O. Elektro-Gerate Blanc u. Fischer · DE

Inventors

Martin Gross · Boone, US
Eugen Wilde · Knittlingen, DE

Key dates

Filing date	Sep 2, 1993
Grant date	Feb 28, 1995
Priority date	—
Expiry date	Sep 2, 2013

Classification

Technology area (CPC H)Electricity
CPC primaryH05B3/748
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Heating resistors and/or series resistors (10) are curved in flat corrugation manner from flat band and are so pressed into the bottom (7) of an insulation (3), that they are only prevented by friction from rising from the bottom (7). The resistor (10) has non-offset, uninterrupted, through-edge faces (14, 15). Thus, in the case of a very simple construction, a surface-specific, high power density can be obtained.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.