| (19) |
 |
|
(11) |
EP 0 173 661 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
14.01.1987 Bulletin 1987/03 |
| (43) |
Date of publication A2: |
|
05.03.1986 Bulletin 1986/10 |
| (22) |
Date of filing: 10.07.1985 |
|
|
| (84) |
Designated Contracting States: |
|
AT BE CH DE FR GB IT LI NL |
| (30) |
Priority: |
01.08.1984 CH 371384
|
| (71) |
Applicant: Institut Cerac S.A. |
|
() |
|
|
| |
|
(57) A fluid pump in which an elastic tube (31) provided with helically extending reinforcing
threads (42) acts as pump. The pumping is accomplished by moving one end (32) of tube
(31) by means of pressure changes in another elastic tube (21) connected with tube
(31).