EP0087682A1 - Unité de mesure et/ou de distribution pour matériaux fluidisés - Google Patents

Unité de mesure et/ou de distribution pour matériaux fluidisés Download PDF

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Publication number
EP0087682A1
EP0087682A1 EP83101483A EP83101483A EP0087682A1 EP 0087682 A1 EP0087682 A1 EP 0087682A1 EP 83101483 A EP83101483 A EP 83101483A EP 83101483 A EP83101483 A EP 83101483A EP 0087682 A1 EP0087682 A1 EP 0087682A1
Authority
EP
European Patent Office
Prior art keywords
tube
unit
feed end
elastic
rollers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP83101483A
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German (de)
English (en)
Inventor
John T. Broadfoot
John T. Broadfoot, Jr.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US06/352,126 external-priority patent/US4407436A/en
Priority claimed from US06/414,006 external-priority patent/US4529106A/en
Application filed by Individual filed Critical Individual
Publication of EP0087682A1 publication Critical patent/EP0087682A1/fr
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/1223—Machines, pumps, or pumping installations having flexible working members having peristaltic action the actuating elements, e.g. rollers, moving in a straight line during squeezing

Definitions

  • This invention relates to a method and apparatus for metering and/or feeding fluid materials, particularly dry particulate materials and semiliquid materials, into a pressurized or non-pressurized atmosphere.
  • Finely divided particulate materials such as Gunite, a sand-cement mixture
  • Several methods are known for feeding dry sand-cement mixtures to a nozzle with compressed air where it is wet with a proper amount of water and applied to a work surface.
  • the prior art machines utilize a pressure vessel, pressurized multiple chambers or a tapered rotary valve.
  • the Allentown Pneumatic Gun Company manufactures a feeder having single or dual chambers. With dual chambers, the material is discharged by compressed air from a lower chamber while the upper chamber is being filled with material. An operator is required to cycle feeding of the material from the upper chamber to the lower. The upper chamber must be vented to the atmosphere before refilling.
  • Nucretor pneumatic spraying equipment manufactured by The Nucrete Group of Companies, Melbourne, Australia, consists of a paddle mixer which discharges the granular material being fed into a feed chamber.
  • a chain drive with fixed circular discs pulls a continuous stream of material through a rubber tube.
  • a series of air jets blows the material from between the fixed discs through a hose.
  • No pressure vessel is required; however, wear and maintenance are problems.
  • a further type of equipment manufactured by Schurenberg Beton-Spritzmaschinen (SBS) GmbH of Essen, West Germany, utilizes a rotary-type, tapered valve having multiple chambers for feeding materials intermittently to a pressurized chamber. Wear and sealing of the tapered valve is a problem. Also, the chambers in the rotary valve, after discharge of the material, must be vented to the atmosphere before being refilled.
  • SBS Schurenberg Beton-Spritzmaschinen
  • NSF Industries of Troy, Michigan manufactures a unit which employs a multi-chambered rotor mounted within a housing. Compressed air enters through a fixed rotor liner having an opening therein communicating with the chambers of the rotor and forces material from the respective chambers.
  • Intradym AG of Switzerland manufactures a unit operating on a similar principle.
  • Venting Because of the necessity of venting in certain of the machines in use today, production capacity is limited. Venting also creates dusting problems and results in a waste of pressurized gas.
  • U.S. Patent No. 2,015,123 discloses a device for transferring blood to a recipient from a donor by pressing an elastic-walled tube filled with blood with a worm arranged parallel to the tube, the worm being rotated to impart a peristaltic movement to the tube.
  • U.S. Patent No. 2,629,333 discloses a liquid pump having an elastic-walled tube and a rotatable helical member engaging and progressively constricting the tube as the helical member is rotated.
  • U.S. Patent No. 3,669,574 discloses a peristaltic pump for underwater pumping of fluids.
  • U.S. Patent No. 3,754,683 discloses a device for feeding dry particulate accelerator material for concrete into an airstream for entrainment which works in combination with a peristaltic pump.
  • a metering and feeding unit for fluid materials employing at least one elastic-walled tube which is vertically oriented to hold the material to be fed.
  • a power-driven assembly is positioned adjacent to and along the length of the tube having tube means for engaging a portion of the tube to collapse the tube against itself, starting at the feed end of the tube and working progressively toward the discharge end where the tube is allowed to rein- flate and the material in the tube is discharged from the discharge end of the tube.
  • Valve means are provided to allow entry of the fluid material into the feed end of the tube at periodic intervals, the valve means working in coordination with the power-driven assembly so that when one of the tube means of the power-driven assembly initially engages the tube to collapse it, that portion of the tube is substantially free of material.
  • the material may be discharged from the discharge end of the tube into a plenum through which a pressurized stream of gas is directed, the gas conveying the material to a work location.
  • a pressurized stream of gas is directed, the gas conveying the material to a work location.
  • multiple units or other means as described hereafter, may be used. Two types of units which function in much the same manner are described.
  • Fig. 1 illustrates a metering and/or feeding unit for fluid materials.
  • the unit includes a housing 10 for the metering and feeding unit having an upper plate 11 and a lower plate 12 separated by intermediate support plate 13 and side plates 14. Openings are included in the upper and lower plates directly opposite each other, as illustrated in Fig. 2, the openings positioned adjacent to the support plate 13.
  • the support plate 13 may be made adjustable relative to its distance from the respective openings in plates 11 and 12, if desired.
  • the opening in the upper plate 11 includes a flange 15 around the opening. The flange 15 extends above and below the surface of the upper plate 11.
  • An open-ended, elastic-walled tube 17 is tightly secured at its upper or feed end around the lower portion of flange 15 and at its lower or discharge end.
  • the tube 17 is secured at its upper end by a band or clamp 18.
  • a similar clamp 16 may be used for securing the lower or discharge end of the tube around the flange of the sleeve which extends into the opening in lower plate 12.
  • the elastic tube 17 is preferably a woven, reinforced rubber material having a smooth surfaced interior wall. Its thickness may range from about 0.635 cm to 1.905 cm, preferably 1.27 cm.
  • a resilient pad 19 (suitably about 1.27 cm in thickness) is provided which extends the length of the tube to provide a resilient backstop between the elastic tube and the support wall 13.
  • a drive assembly which includes tube rollers mounted so as to engage a portion of the tube, beginning at its feed end, to collapse that portion of the tube against itself and then work progressively downwardly toward the discharge end of the tube, where the tube roller disengages from the tube to allow reinflation of the tube.
  • the tube rollers are mounted at spaced intervals on an endless belt, as illustrated in Fig. 2. Referring to Fi g . 2, a pair of chains 22 extend about spaced sprockets 23, 24 and 25.
  • Sprockets 23, 24 and 25 are secured to respective shafts 23a, 26 and 27, the respective shafts journaled in bearings 20 secured, respectively, to the upper ends of plates 31 and 32, which are secured to the sidewalls 14 of the housing (see Fig. 3).
  • the sprockets 24 and 25 are mounted such as to provide a run along virtually the entire length of the elastic tube 17.
  • Mounted to the spaced chains at spaced intervals are three tube rollers 28, each journaled in respective bearings on shafts 29 for rotation about the respective shafts (see Fig. 3).
  • Guide rollers 30 are journaled on the ends of the respective shafts 29, the guide rollers traveling along the forward edge of guide plate 31 secured to the respective sidewalls 14 of the unit.
  • the guide surface 31a see Fig.
  • Plates 32 are pivotally connected to the respective sidewalls 14 at 32a.
  • a chain-tightening wedge 32b is provided for adjustment of sprocket 23 to tighten chains 22.
  • Pairs of side roller units 33 may be secured to the respective chains 22 between each of the tube rollers 28, as illustrated in Fig. 2.
  • Each side roller unit 33 includes an elongated bracket 34 from which extend respective shafts 35. Rollers 36 are journaled for rotation on the respective shafts 35. Flanges 37, secured at one end to the shafts 35, are secured to the respective pairs of chains at their opposite ends.
  • the distance between the pairs of rollers 36, as illustrated in Fig. 4 should be about the same as the diameter of the tube 17.
  • the side roller units are designed to contact the walls of the tube after it has been collapsed by the tube rollers 28 and aid in reinflating the tube to the configuration illustrated in Fig. 4 from that illustrated in Fig. 3.
  • a relatively short length of tubing 38 is secured around the feed opening in the upper plate 11 with a band or wire clamp 18a.
  • the free end of the section of elastic tube 38 is closed and opened by valve means, such as an arcuate section of a wheel 39 secured above the feed opening for rotation to shaft 40.
  • the shaft 40 is journaled for rotation to bearings secured to the. sidewalls of a bin 41 which receives and holds the fluid material to be fed into the metering unit.
  • the wheel 39 includes an arcuate surface portion 42 which engages the free end of the section of elastic tube 38 to seal the feed opening against entry of material into the tube 17 at periodic intervals.
  • a cam-operated sliding valve may be used or other valve means which functions to open and close the feed opening at appropriate times.
  • the drive assembly for the tube rollers and the wheel 39 are driven by suitable means, such as a motor 43 (see Fig. 1) whose output shaft drives sprocket 25.
  • the output shaft may have a sprocket 44 secured to it around which is trained chain 45 which is trained about sprocket 46 secured to shaft 40.
  • the rotation rate of wheel 39 relative to that of the drive assembly is chosen to ensure that the feed end of .th-e tube is sealed against entry of material when the tube rollers 28 initially engages the tube 17 at its upper end so that the tube is substantially free of material, thus allowing the tube to be collapsed against itself by the tube roller.
  • Fig. 5 schematically illustrates operation of the unit.
  • the arcuate surface 42 of wheel 39 seals the feed end of the tube 17 against entry of material into the tube 17.
  • Tube roller 28a near the feed end of the tube, begins to compress the tube 17 to collapse it against itself. Particulate material previously fed into the tube during an earlier cycle moves down the tube as the tube roller 28a progressively moves down the tube.
  • the upper tube roller 28a completely collapses the tube 17 against itself prior to the opening of the feed end of the tube by rotation of wheel 39.
  • the lower tube roller 28b reaches the end of its run and disengages from the tube 17, allowing the material in the tube to discharge from the tube.
  • Material discharged from the tube 17 may be discharged into a pressurized air plenum 47, as illustrated in Figs. 1, 2 and 5, or discharged in any other manner desired.
  • Fig. 6 three side-by-side metering and feeding units are illustrated which are driven through a common drive shaft.
  • the respective positions of -the- tube rollers 28 and arcuate circular members 39 of each unit are adjusted to provide a continuous flow of material into the air plenum 47 from the respective elastic-walled tubes in the three units. Referring to unit A of F ig.
  • the respective positions of the tube rollers 28 and the wheel 39 are such that the feed end of the tube has just been opened and a lower tube roller just disengaged from the tube to allow material in the tube to be fed into the plenum 47, as illustrated in Fig. 5B.
  • the next adjacent unit (unit B of Fig. 6) has its tube rollers 28 and wheel 39 in a position similar to that of Fig. 5D, where the material has been loaded into the tube and is progressively moving down the length of the tube but has not been discharged.
  • the next adjacent unit (unit C of Fig. 6) has its tube rollers 28 and wheel 39 in a position similar to that shown in Fig.
  • Fig. 7 illustrates still another way of providing continuous flow of material to an air plenum.
  • an extension 48 of the tube 17 extends from the discharge end of the tube 17 to the air plenum 47.
  • a rotatably mounted butterfly wheel 49 having spaced vanes extending from the central shaft of the wheel. The material discharged from tube 17 is prevented from entering the air plenum 47 all at once by the vanes of the butterfly wheel.
  • the wheel is rotated at a rate sufficient to provide a continuous flow of material into the plenum as the material is discharged from the discharge end of the tube into the extension 48 above the butterfly wheel.
  • Fig. 8 illustrates still another method of providing continuous feed of material.
  • the discharge end of the unit is connected with a pneumatic feeder of the type manufactured by Schurenberg Beton-Spritzmaschinen (SBS) GmbH of Essen, West Germany.
  • the material is discharged into a chamber 50 in which a rotating drum 51 is located.
  • the chamber 50 includes a material outlet near its lower end. Pressurized air is fed through conduit 53, which discharges adjacent the discharge conduit 52 to entrain the material in the chamber and discharge it.
  • Fig. 9 illustrates a vacuum-pressure system making use of the metering and feeding unit of this invention.
  • the unit is encased in a housing 56 connected to a source of vacuum 54.
  • the bin 58 above the unit holding the material to be fed is also connected to the source of vacuum 54 and to a material feed line 57.
  • the vacuum created in the bin 58 aids in drawing in the material to be fed through line 59 where it feeds by gravity into the upper end of tube 17 of the metering and feeding unit as previously described.
  • a filter 60 may be provided in the bin to prevent material in the upper part of the bin from being pulled into the vacuum pump 54.
  • the vacuum drawn on the metering and feeding unit exteriorly of the tube 17 aids in reinflation of the tube to its original condition after being collapsed by the respective tube rollers 28.
  • FIGs. 10-17 An alternative unit is illustrated in Figs. 10-17.
  • This unit utilizes a rotatable helical member which peripherally engages one or more vertically oriented tubes to constrict the tube as the helical member rotates, beginning at the infeed end of the tube and ending at the discharge end. Means are included to periodically cover and uncover the feed end of the tube at selected intervals to prevent entry of material to be conveyed into the tube so that when the helical member engages and constricts the tube, that portion of the tube is substantially free of material.
  • the metering and feeding unit is housed in a container which may be filled with oil or other liquid to provide cooling and lubrication for the heat of friction generated during operation of the unit.
  • the material is discharged from the discharge end of the tube or tubes into a plenum through which a pressurized stream of gas is directed, the gas conveying the material to a work location.
  • Fig. 10 illustrates a housing 70 for the metering and feeding unit having an upper plate 71, a lower plate 72, the upper and lower plates joined by sidewalls 73.
  • the upper and lower plates include a plurality of annular openings 74 and 75 spaced equidistantly about the central axis of the housing.
  • the housing may also includes vertical supports 76 (see Fig. 13) at spaced intervals.
  • the sidewalls are bolted to the upper and lower plates, respectively.
  • Suitable gas- keting is included near the top and bottom edges of the sidewalls and near the side edges to seal the unit. The gaskets near the side edges contact the vertical supports 76.
  • a shaft 77 coincident with and parallel to the axis of the housing, extends through respective openings in the top and bottom walls of the housing, as illustrated in Fig. 17.
  • the shaft is journaled for rotation relative to the housing through bearings 78 which are nounted in the top and bottom openings of the shaft.
  • Mounted to and surrounding the shaft is a rigid helical member 79, the function of which will be described.
  • each of the retainers includes a back wall 82, a top wall 83 and bottom wall 84.
  • the top and bottom walls include respective openings 85 and 86 which are coincident with openings 74 and 75 in respective top and bottom walls of the housing.
  • the elastic-walled tube 80 of each of the . retaining units is tightly secured at its upper end around a serrated fitting 85a surrounding the opening 85.
  • the tubes 80 are cut to provide a smooth interior surface between the inner wall of the serrated fitting 85a and the interior surface of the elastic tube.
  • a four-part clamp 85b is used to clamp the tube about the fitting 85a.
  • the lower end of the elastic tubing is tightly secured around the opening 86 by similar means.
  • a smooth interface is provided between the interior surface of the tube and the fitting 86a surrounding the opening 75.
  • a clamp 86b clamps the tube about the fitting.
  • a backstop 87 made of rubber or other resilient material (suitably about 1:27 cm in thickness), is mounted between the back wall 22 and tube 20 to contact the sidewall of the elastic tube adjacent the back wall of the retainer.
  • the respective modular retainers 81 are mounted in the housing as illustrated in Figs. 10 and 13. Each of the modular retainers is retained in the housing by a series of pins 88 extending upwardly from the bottom wall 72 against which shoulders 89 formed on the bottom wall 84 of the respective modular retainers 81 rest. Although not shown, there are corresponding pins extending downwardly from the top wall 71 against which shoulders 89 formed on the top walls 83 rest. Additionally, retaining screws 90, threaded into and extending from the upper and lower walls 70 and 72, are used to hold the bottom and top walls 84 and 83 of each of the modular units to prevent lateral shift of each of the units. This is best illustrated in Fig. 12.
  • a cover 91 covers, at any given time, certain of the spaced openings 74 through which the particulate material drops into the respective elastic tubes 80.
  • the cover is secured to the shaft 77 for rotation therewith by spaced supports 92 and 93 and sequentially covers and uncovers respective openings 74.
  • a hopper 94 holding the particulate material to be fed into the metering unit has its discharge end fitted around the top 71 of the housing, as illustrated in Fig. 10. If necessary, vent openings to the atmosphere may be provided through the supports 93 in the cover 91 and shaft 77- to permit the tubes to reinflat-e after being compressed by the rod.
  • plenum 95 Secured to the bottom wall 72 and covering each of the bottom openings 75 through which the particulate material discharges is a plenum 95 into which pressurized air or other gas enters through port 96.
  • the plenum includes a discharge end which conveys the material to a work location.
  • the housing is sealed and the interior of the housing filled with oil, lubricant, or other coolant.
  • the housing is initially filled by opening valves 98 and 99 and closing valves 100, 101 and 102.
  • An airtight filler cap 103 including an integral dipstick is opened and the housing filled with oil.
  • the filler cap is then closed and the vacuum pump 104 started.
  • a vacuum gauge 105 may be included to monitor the vacuum.
  • the volume of oil held by the accumulator vessel 106 should approximately equal the volume of oil which is held in the housing.
  • the pump 104 is operated until the oil is moved to the vessel 106.
  • valves 99 and 100 are closed and valves 98, 101 and 102 opened.
  • the pump 104 when operated, creates a vacuum in the housing and pressure in the accumulator 106. When all of the oil is transferred, valve 102 is closed.
  • each of the tubes is held within a flexible sling 107 (see Fig. 13) which is secured by rivets 108 (see Fig. 14) or other suitable means to the back stop along the side of the back stop where the rod 79 first engages the elastic tube.
  • the sling is suitably manufactured from a reinforced elastomeric material, such as neoprene, having a thickness of about 0.318 cm.
  • the elastic tubes 80 preferably have a wall thickness of about 1.27 cm and are fabricated of a woven, reinforced-rubber material-having a smooth-surfaced interior wall.
  • particulate material held in the hopper 94 falls by gravity into the respective elastic tubes 80e, 80f, 80g and 80h not covered by the cover 91.
  • reference numeral 109 refers to the areas where the helical rod 79 initially engages an elastic tube to squeeze it against the opposite sidewall of the tube, as indicated in Fi g . 16.
  • the cover 91 covers'tubes 80a, 80b, 80c and 80d. As the helical rod rotates, an air gap 110 is created beneath the cover 91.
  • the helical rod 79 and shaft 77 may be driven by a hydraulic motor 111, illustrated in Fig. 16. Hydraulic fluid is supplied to the hydraulic motor through line 112 from a reservoir 113 by a power source 114. The hydraulic fluid returns to the reservoir by way of line 115.
  • each of the elastic-walled tubes may be fed to different respective plenums or discharged into a common plenum for mixing.
  • any means of periodically opening and closing the infeed ends of the respective elastic tubes may be used.
  • the device may be used to batch materials for a mixer or for other purposes. In such case, the plenum and air conveying means may be omitted.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
EP83101483A 1982-02-25 1983-02-16 Unité de mesure et/ou de distribution pour matériaux fluidisés Ceased EP0087682A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US06/352,126 US4407436A (en) 1982-02-25 1982-02-25 Metering and/or feeding device for materials
US352126 1982-02-25
US414006 1982-09-02
US06/414,006 US4529106A (en) 1982-09-02 1982-09-02 Metering and/or feeding unit for fluid materials

Publications (1)

Publication Number Publication Date
EP0087682A1 true EP0087682A1 (fr) 1983-09-07

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EP83101483A Ceased EP0087682A1 (fr) 1982-02-25 1983-02-16 Unité de mesure et/ou de distribution pour matériaux fluidisés

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EP (1) EP0087682A1 (fr)
AU (1) AU1139583A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2789736A1 (fr) * 1999-02-11 2000-08-18 Joseph Ferrandez Pompe a flux continu de type peristaltique comprenant un corps de pompe
WO2009130250A1 (fr) * 2008-04-22 2009-10-29 Trepko A/S Appareil de distribution péristaltique linéaire et procédé destiné à être utilisé dans l'appareil
WO2010017309A1 (fr) * 2008-08-05 2010-02-11 Michigan Critical Care Consultants, Inc. Appareil et procédé pour surveiller et contrôler un écoulement sanguin extracorporel par rapport à un état de fluide de patient
KR200459145Y1 (ko) * 2009-04-07 2012-03-21 유한회사 신신프락콘 안전마개가 부착된 주사기형 약품용기
US8162634B2 (en) 2005-12-01 2012-04-24 Michigan Critical Care Consultants, Inc. Pulsatile rotary ventricular pump
WO2023025361A1 (fr) * 2021-08-23 2023-03-02 Lsm Pumper Aps Pompe péristaltique linéaire

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107246379A (zh) * 2017-07-21 2017-10-13 长沙执先智量科技股份有限公司 一种直线式高精度蠕动泵

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2029514A (en) * 1934-04-25 1936-02-04 Dardelet Threadlock Corp Thread cutting tool
US3340817A (en) * 1965-10-18 1967-09-12 Gustave W Kemnitz Pump
FR2144234A5 (fr) * 1971-12-16 1973-02-09 Rugel Et Lutz Maschinenf
NL7211427A (fr) * 1971-02-24 1974-02-25
FR2199812A5 (fr) * 1972-05-12 1974-04-12 Von Casimir Wolf
US3862780A (en) * 1973-07-27 1975-01-28 Spribag Ag Sluice type feeding device
FR2325827A1 (fr) * 1975-09-25 1977-04-22 Baxter Travenol Lab Pompe peristaltique a galets compensateurs
CH589553A5 (en) * 1975-01-23 1977-07-15 Spribag Ag Material dispensing process between chambers - has endless rubber conveyor belt with pressure roller mountings and hose shaped chamber
FR2336571A1 (fr) * 1975-12-22 1977-07-22 Miles Lab Pompe peristaltique

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2029514A (en) * 1934-04-25 1936-02-04 Dardelet Threadlock Corp Thread cutting tool
US3340817A (en) * 1965-10-18 1967-09-12 Gustave W Kemnitz Pump
NL7211427A (fr) * 1971-02-24 1974-02-25
FR2144234A5 (fr) * 1971-12-16 1973-02-09 Rugel Et Lutz Maschinenf
FR2199812A5 (fr) * 1972-05-12 1974-04-12 Von Casimir Wolf
US3862780A (en) * 1973-07-27 1975-01-28 Spribag Ag Sluice type feeding device
CH589553A5 (en) * 1975-01-23 1977-07-15 Spribag Ag Material dispensing process between chambers - has endless rubber conveyor belt with pressure roller mountings and hose shaped chamber
FR2325827A1 (fr) * 1975-09-25 1977-04-22 Baxter Travenol Lab Pompe peristaltique a galets compensateurs
FR2336571A1 (fr) * 1975-12-22 1977-07-22 Miles Lab Pompe peristaltique

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2789736A1 (fr) * 1999-02-11 2000-08-18 Joseph Ferrandez Pompe a flux continu de type peristaltique comprenant un corps de pompe
US8162634B2 (en) 2005-12-01 2012-04-24 Michigan Critical Care Consultants, Inc. Pulsatile rotary ventricular pump
US8678792B2 (en) 2005-12-01 2014-03-25 Michigan Critical Care Consultants, Inc. Pulsatile rotary ventricular pump
WO2009130250A1 (fr) * 2008-04-22 2009-10-29 Trepko A/S Appareil de distribution péristaltique linéaire et procédé destiné à être utilisé dans l'appareil
WO2010017309A1 (fr) * 2008-08-05 2010-02-11 Michigan Critical Care Consultants, Inc. Appareil et procédé pour surveiller et contrôler un écoulement sanguin extracorporel par rapport à un état de fluide de patient
US8226591B2 (en) 2008-08-05 2012-07-24 Michigan Critical Care Consultants, Inc. Apparatus and method for monitoring and controlling extracorporeal blood flow relative to patient fluid status
US8568289B2 (en) 2008-08-05 2013-10-29 Michigan Critical Care Consultants, Inc. Apparatus and method for monitoring and controlling extracorporeal blood flow relative to patient fluid status
KR200459145Y1 (ko) * 2009-04-07 2012-03-21 유한회사 신신프락콘 안전마개가 부착된 주사기형 약품용기
WO2023025361A1 (fr) * 2021-08-23 2023-03-02 Lsm Pumper Aps Pompe péristaltique linéaire

Also Published As

Publication number Publication date
AU1139583A (en) 1983-09-01

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