(19)
(11) EP 0 336 912 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
29.08.1990 Bulletin 1990/35

(43) Date of publication A2:
11.10.1989 Bulletin 1989/41

(21) Application number: 89850095.4

(22) Date of filing: 21.03.1989
(51) International Patent Classification (IPC)4: B08B 5/04
// B28D7/02
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 31.03.1988 SE 8801209

(71) Applicant: ROCKWOOL AKTIEBOLAGET
S-541 86 Skövde (SE)

(72) Inventor:
  • Öhberg, Ingemar
    S-541 52 Skövde (SE)

(74) Representative: Avellan-Hultman, Olle 
Avellan-Hultman Patentbyra AB P.O. Box 5366
102 49 Stockholm
102 49 Stockholm (SE)


(56) References cited: : 
   
       


    (54) Method and apparatus for processing a mineral wool path


    (57) A method and an apparatus in the in the manufacture of mineral wool products from a path of mineral wool (1) by split cutting the mineral wool path (1) into two or several layers (6, 7) by split cuts which are parallel to the plane of the mineral wool path (1), which method and apparatus are useful in reducing the spreading of dust from the mineral wool products thereby provided, by vacuum exhausting loose fibres and other particles by means of vacuum means (9) introduced in between the layers (6, 7) formed by the split cutting, whereby the split surfaces (27, 28) just formed are vacuum cleaned, whereupon the layers (6, 7) are moved together again.







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