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1. WO1996004480 - IMPROVED PERISTALTIC PUMP

Publication Number WO/1996/004480
Publication Date 15.02.1996
International Application No. PCT/US1995/007102
International Filing Date 05.06.1995
Chapter 2 Demand Filed 23.02.1996
IPC
F04B 43/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
43Machines, pumps, or pumping installations having flexible working members
F04B 43/12 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
43Machines, pumps, or pumping installations having flexible working members
12having peristaltic action
F16L 11/12 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
11Hoses, i.e. flexible pipes
04made of rubber or flexible plastics
12with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
CPC
F04B 43/0072
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
43Machines, pumps, or pumping installations having flexible working members
0009Special features
0054particularities of the flexible members
0072of tubular flexible members
F04B 43/1253
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
43Machines, pumps, or pumping installations having flexible working members
12having peristaltic action
1253by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing
F16L 11/121
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
11Hoses, i.e. flexible pipes
04made of rubber or flexible plastics
12with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
121specially profiled cross sections
Applicants
  • COLE-PARMER INSTRUMENT COMPANY [US/US]; 7425 N. Oak Park Avenue Niles, IL 60714, US
Inventors
  • SUNDEN, Bengt; SE
  • FORSSTROM, Bo; SE
  • SODERQUIST, Charles, E.; US
  • STORCKMAN, Steven, D.; US
Agents
  • SAMPLES, Kenneth, H. ; Fitch, Even, Tabin & Flannery Room 900 135 S. LaSalle Street Chicago, IL 60603, US
Priority Data
08/286,88405.08.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) IMPROVED PERISTALTIC PUMP
(FR) POMPE PERISTALTIQUE AMELIOREE
Abstract
(EN)
An improved peristaltic pump using a pumptube comprising an inner tube and an outer tube each of rigid fluoroplastic material, preferably polytetrafluoroethylene (PTFE), is provided. The pumping section of the pumptube which contacts the pressure rollers of the peristaltic pump is preformed or shaped into a flattened, oval-like shape which approximately conforms to the pumptube passageway in the peristaltic pump. The pressure rollers contact and compress the flattened side of the pumptube and, thereby, effect the transport or pumping of the fluid. Methods for preparing the pumptubes of this invention are also provided. Corrosive, hot, and/or high pressure fluids can be readily handled using the improved pumtubes and peristaltic pumps provided.
(FR)
Pompe péristaltique améliorée mettant en ÷uvre une conduite de pompage comprenant un tube interne et un tube externe constitués l'un et l'autre d'un matériau fluoroplastique rigide, de préférence du polytétrafluoroéthylène (PTFE). Le tronçon de pompage de la conduite de pompage qui est au contact des rouleaux de pression de la pompe péristaltique est préformé ou bien présente une configuratio aplatie, sensiblement ovale, qui se conforme approximativement à la voie de passage de la conduite de pompage de la pompe péristaltique. Les rouleaux de pression compriment la partie aplatie de la conduite de pompage et réalisent de ce fait le déplacement ou pompage du fluide. L'invention porte également sur les procédés d'élaboration des conduites de pompage. Des fluides corrosifs, à haute température et sous des pressions élevées peuvent ainsi être manipulés facilement grâce à ces nouvelles conduites de pompage et pompes péristaltiques.
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