EP 0088175 A1 19830914 - Tumble drying apparatus.
Title (en)
Tumble drying apparatus.
Title (de)
Trommeltrockenvorrichtung.
Title (fr)
Dispositif de séchage à tambour.
Publication
Application
Priority
EP 82301154 A 19820308
Abstract (en)
The invention relates to apparatus for removing moisture from articles. A housing (10) rotatably supports a hollow drum (12) on substantially a horizontal axis whereby articles to be dryed tumble around the interior of the drum when the latter is rotated. A microwave power mechanism (46) such as a magnetron, is provided in a door (40) for the housing and has an output portion thereof directed into the drum for heating and drying articles tumbling in the drum. An output portion (78) of the microwave power mechanism has a dielectric dome-like shield (84) mounted over it for deflecting tumbling articles away from such output. A forced air system (54) is provided for ventilating the interior of the drum, and such system includes a passageway extending adjacent to the power mechanism (46) to that such ventilating air also cools the power means. The present mechanism is associated with an electrical circuit having door interlocks, door panel interlocks, and other interlocks, as well as a magnetically operated door interlock that is substantially foolproof so that power from the microwave power mechanism is positively de-energised when the door is open. Circuitry is provided for the microwave power mechanism to protect it from excess average and peak reflected power. The circuitry also includes a humidity sensor to prevent excessive drying.
IPC 1-7
IPC 8 full level
D06F 58/02 (2006.01); D06F 58/26 (2006.01); H05B 6/68 (2006.01); H05B 6/80 (2006.01)
CPC (source: EP US)
D06F 58/266 (2013.01 - EP US); H05B 6/6432 (2013.01 - EP); H05B 6/6458 (2013.01 - EP); H05B 6/80 (2013.01 - EP); D06F 34/10 (2020.02 - EP US); D06F 58/02 (2013.01 - EP US); D06F 58/38 (2020.02 - EP US); D06F 2103/34 (2020.02 - EP US); D06F 2105/62 (2020.02 - EP US); H05B 2206/046 (2013.01 - EP)
Citation (search report)
- [X] CA 1092198 A 19801223 - TOYNE JAMES A
- [X] US 3410116 A 19681112 - LEVINSON MELVIN L
- [Y] DE 1610307 A1 19710401 - ZANKER KG HERMANN
- [Y] DE 1610314 A1 19710128 - HERMANN ZANKER MASCHINEN UND M
- [X] DE 2818693 A1 19791031 - BALTES HANS
- [E] US 4334136 A 19820608 - MAHAN DOUGLAS P, et al
- [E] US 4356640 A 19821102 - JANSSON CHRISTIAN
- [A] US 3854219 A 19741217 - STAATS J
- [A] US 3448232 A 19690603 - KLUCK JAMES H
- [A] US 4081647 A 19780328 - TORREY SUMNER HALE
- [A] US 3678238 A 19720718 - YASUOKA YOSHIO, et al
- [A] US 3127494 A 19640331 - KELLOUGH SAMUEL H, et al
- [A] FR 2487623 A1 19820129 - ELECTRICITE DE FRANCE [FR]
- [A] US 4210795 A 19800701 - LENTZ RONALD R [US]
- [A] FR 2312067 A1 19761217 - MATSUSHITA ELECTRIC IND CO LTD [JP]
- [A] US 3269027 A 19660830 - HARNDEN JR JOHN D
- [A] US 2381894 A 19450814 - FERRIS DONALD K
- [A] US 3936622 A 19760203 - MCELROY ROBERT C
- [A] GB 2023313 A 19791228 - BERSTORFF GMBH MASCH HERMANN
- [A] GB 1400895 A 19750716 - CANADIAN PATENTS DEV
- [A] US 3626135 A 19711207 - FITZMAYER LOUIS H
- [A] US 3276138 A 19661004 - KARL FRITZ
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 82301154 A 19820308