(19)
(11) EP 0 031 330 A1

(12)

(43) Date of publication:
08.07.1981 Bulletin 1981/27

(21) Application number: 80901084.0

(22) Date of filing: 11.06.1980
(51) International Patent Classification (IPC): 
B08B 5/ 00( . )
G10K 9/ 04( . )
(86) International application number:
PCT/SE1980/000165
(87) International publication number:
WO 1980/002887 (24.12.1980 Gazette 1980/29)
(84) Designated Contracting States:
CH DE FR GB LI SE

(30) Priority: 11.06.1979 SE 19790005050

(71) Applicant: KOCKUMATION AB
S-212 10 Malmö (SE)

(72) Inventors:
  • ABRAHAMSSON, Per
    S-214 28 Malmö (SE)
  • HOLM, Bengt Lennart
    S-216 18 Malmö (SE)
  • NILSSON, Carl-Eric
    S-230 50 Bjärred (SE)

   


(54) AN IMPROVEMENT IN GAS-OPERATED PRESSURE OSCILLATION GENERATORS OF THE DIAPHRAGM VALVE TYPE