| (19) |
 |
|
(11) |
EP 0 098 086 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
17.10.1984 Bulletin 1984/42 |
| (43) |
Date of publication A2: |
|
11.01.1984 Bulletin 1984/02 |
| (22) |
Date of filing: 21.06.1983 |
|
|
| (84) |
Designated Contracting States: |
|
AT BE CH DE FR GB IT LI LU NL SE |
| (30) |
Priority: |
24.06.1982 IE 150382
|
| (71) |
Applicant: Attwell, Ronald Leslie |
|
() |
|
| (72) |
Inventor: |
|
- Attwell, Ronald Leslie
()
|
|
| |
|
| (54) |
A prefabricated flue unit |
(57) @ A prefabricated flue unit (1,30,40,60,70) comprises an outer box-shaped housing
(2) having a through hole defining a flue, a liner (3) for the flue and an insulating
infill material (4) interposed between the liner (3) and housing (2). The housing
(2) is of a fibre reinforced cementitious material and the liner (3) is of a fire
and acid resistant material.
The unit is formed with an interlocking means which in one case forms part of the
housing (2) and comprises a male spigot (14) including a tapered step portion (8)
for interengaging in a complementary female socket (15).