EP 0985893 A1 20000315 - Microwave kiln for firing ceramic material under pressure
Title (en)
Microwave kiln for firing ceramic material under pressure
Title (de)
Hochdruckmikrowellenofen zum Brennen von keramischem Material
Title (fr)
Four à micro-ondes pour cuire sous pression des matériaux céramiques
Publication
Application
Priority
IT FI980200 A 19980908
Abstract (en)
A microwave kiln for firing ceramic material under pressure comprises a container (2), a box-shaped body (13) made of low-density alumina and rotatable inside the container (2) about a vertical axis, a firing chamber for the ceramic material, consisting of the internal cavity (14) of the box-shaped body (13), a magnetron (28) for generating microwaves and a waveguide (27) for introducing said waves inside the container (2) through an opening (24), means designed to generate a pressure greater than atmospheric pressure inside the container (2); the magnetron (28) and the waveguide (27) being movable along the opening (24) in order to produce a substantially uniform electromagnetic field inside the container (2); elements (15) made of material with a high dielectric loss factor being provided adjacent to the walls of the internal cavity (14) of the box-shaped body (13). <IMAGE>
IPC 1-7
IPC 8 full level
F27B 17/02 (2006.01); H05B 6/80 (2006.01)
CPC (source: EP)
F27B 17/02 (2013.01); H05B 6/80 (2013.01); H05B 2206/046 (2013.01)
Citation (search report)
- [A] GB 2262333 A 19930616 - UNIV STAFFORDSHIRE ENTPR LTD [GB]
- [A] DE 19648366 C1 19980402 - RIEDHAMMER GMBH CO KG [DE]
- [A] FR 2645391 A1 19901005 - MARZAT CLAUDE [FR]
- [A] US 4835354 A 19890530 - COLLINS MICHAEL J [US], et al
- [A] EP 0457948 A1 19911127 - ABB PATENT GMBH [DE]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0985893 A1 20000315; EP 0985893 B1 20020821; AT E222646 T1 20020915; DE 69902570 D1 20020926; DE 69902570 T2 20030424; DK 0985893 T3 20021202; ES 2181383 T3 20030216; IT 1304897 B1 20010405; IT FI980200 A0 19980908; IT FI980200 A1 20000308
DOCDB simple family (application)
EP 99830546 A 19990906; AT 99830546 T 19990906; DE 69902570 T 19990906; DK 99830546 T 19990906; ES 99830546 T 19990906; IT FI980200 A 19980908