Patent EP0242077A2 successfully refreshed from Google Patents.
EP0242077A2
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EP
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A peristaltic pump
Assignee: IBG Systems Ltd
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Filing: 1987-03-30
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Granted: —
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Expires: 2007-03-30
Abstract
Abstract A peristaltic pump (l) capable of compressing a flexible walled tube (9) between a pressure member (5) and a pressure plate (6). In order for the force applied to the flexible walled tube (9) to be constant the pressure member (5) and pressure plate (6) are hydraulically biased together. In particular the pressure member (5) and pressure plate (6) are biased together by means of compressed air contained in a pressure chamber (7).
Inventors
- 👤 Alan Reginald Bowley
- 👤 Derek William Ross
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 20:02
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/12; F04B43/1253; F04B43/1292
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
47 words
A peristaltic pump (l) comprising a moveable pressure member (5) and a pressure plate (6) capable of compressing a flexible walled tube between the pressure member and the pressure plate, characterised in that the pressure member and the pressure plate are capable of being hydraulically biased together.
Claim 2
Dependent Claim
47 words
A peristaltic pump (l) comprising a moveable pressure member (5) and a pressure plate (6) capable of compressing a flexible walled tube between the pressure member and the pressure plate, characterised in that the pressure member and the pressure plate are capable of being hydraulically biased together.
Claim 3
Dependent Claim
25 words
A peristaltic pump (l) according to Claim l, in which the pressure plate (6) is capable of being hydraulically biased towards the pressure member (5).
Claim 4
Dependent Claim
24 words
A peristaltic pump (l) according to Claim l, in which the hydraulic biasing means comprises a pressure chamber (7) capable of receiving a fluid.
Claim 5
Dependent Claim
28 words
A peristaltic pump (l) according to Claim 2 or 3, in which the hydraulic biasing means is separated from the pressure plate (6) by a flexible partition (8).
Claim 6
Dependent Claim
23 words
A peristaltic pump (l) according to any of the above claims, in which the fluid of the hydraulic biasing means is compressed air.
Claim 7
Dependent Claim
78 words
A peristaltic pump according to any of the above claims, in which the fluid supply to the hydraulic biasing means is capable of adjustment between an operating mode in which the hydraulic biasing means is provided with fluid such that the pressure member and pressure plate are hydraulically biased together and a non-operating mode in which the fluid supply to the hydraulic biasing means is restricted and the pressure plate and pressure member are not hydraulically biased together.
Claim 8
Dependent Claim
29 words
A peristaltic pump (l) according to any of the above claims, in which the pressure plate (6) is mounted so as to be slidable towards the pressure member (5).
Claim 9
Dependent Claim
26 words
A peristaltic pump according to Claim 7, in which the pressure plate (6) is provided with means for limiting its sliding motion towards the pressure member.
Claim 10
Dependent Claim
38 words
A peristaltic pump according to Claim 8, in which the limiting means is a shoulder (ll) provided on the pressure plate (6) which shoulder is capable of co-operating with a corresponding lip (l2) on the peristaltic pump (l).
Claim 11
Dependent Claim
31 words
l0. A peristaltic pump (l) according to any of the above claims, in which the surface (l0) of the pressure plate (6) capable of contacting the flexible-walled tube (9) is arcuate.
Claim 12
Dependent Claim
20 words
A peristaltic pump (l) according to any of the above claims, in which there is a plurality of pressure plates.
Claim 13
Dependent Claim
26 words
A peristaltic pump according to Claim ll, in which each of the pressure plates is independently mounted so as to be slidable towards the pressure member.
Claim 14
Dependent Claim
35 words
A peristaltic pump (l) acording to Claim ll or l2 provided with one pressure plate for each tube accommodated in the pump such that in use, each pressure member (5) contacts only one tube (9).
References Cited (Backward Citations)
No citation records indexed.
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