| (19) |
 |
|
(11) |
EP 0 272 854 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
02.11.1989 Bulletin 1989/44 |
| (43) |
Date of publication A2: |
|
29.06.1988 Bulletin 1988/26 |
| (22) |
Date of filing: 11.12.1987 |
|
|
| (84) |
Designated Contracting States: |
|
DE ES FR GB IT NL |
| (30) |
Priority: |
15.12.1986 GB 8629882
|
| (71) |
Applicant: GREENBANK ENGINEERING GROUP LIMITED |
|
Lancashire, BB1 3AJ (GB) |
|
| (72) |
Inventors: |
|
- Soltau, William Ernest
Blackburn
Lancashire BB2 6SD (GB)
- Edge, Richard
Fulwood
Preston PR2 3LN (GB)
|
| (74) |
Representative: Massey, Alexander et al |
|
MARKS & CLERK,
Sussex House,
83-85 Mosley Street
Manchester M2 3LG
Manchester M2 3LG (GB) |
|
| |
|
| (54) |
Convective drying apparatus |
(57) A hot gas convective drying apparatus is provided with a plurality of nozzles for
directing hot gas onto material to be dried and with radio frequency heating means
adapted to create a radio freqeuncy field in the region through which the material
to be dried travels. The electrode means of the radio frequency heating means comprises
a pair of spaced perforated plates (11,12) between which the material (10) to be dried
passes and with which are associated the hot gas directing nozzles. Alternatively
the electrode means is a single perforated plate (11b) with an opposed array of individual
hot gas directing nozzles.