Global Patent Index - EP 1796433 A1

EP 1796433 A1 20070613 - Electric resistance with low energy consumption PTC heating elements

Title (en)

Electric resistance with low energy consumption PTC heating elements

Title (de)

Elektrischer Widerstand mit PTC-Heizelementen mit niedrigem Stromverbrauch

Title (fr)

Résistance électrique muni d'éléments chauffants PTC à faible consommation d'énergie

Publication

EP 1796433 A1 20070613 (EN)

Application

EP 06125385 A 20061205

Priority

IT VI20050330 A 20051207

Abstract (en)

An electric resistance with low energy consumption PTC heating elements, of the type comprising a tubular container (10), which forms the outer casing of the resistance and which contains a first layer of insulating material (20), at least one operating heating element, consisting of at least a first PTC plate (11), closed between a first (12) and a second diffusor (13), and at least a second layer of insulating material (21), consisting of magnesium oxide powder, which fills all the spaces available around the first PTC plate (11), inside the electric resistance there is also a thermostat (14), normally closed and situated at a certain distance (A) from the first diffusor (12), a third diffusor (15), situated at a pre-established distance (B) from the above first diffusor (12), and a maintenance heating element, consisting of at least a second PTC plate (16) closed between the third (15) and second diffusor (13) and positioned adjacent to the thermostat (14).

IPC 8 full level

H05B 3/44 (2006.01); H05B 1/02 (2006.01); H05B 3/78 (2006.01)

CPC (source: EP)

H05B 1/0291 (2013.01); H05B 3/44 (2013.01); H05B 3/78 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK YU

DOCDB simple family (publication)

EP 1796433 A1 20070613; EP 1796433 B1 20151014; IT VI20050330 A1 20070608

DOCDB simple family (application)

EP 06125385 A 20061205; IT VI20050330 A 20051207