EP1477675A1 - Dosierpumpe - Google Patents
Dosierpumpe Download PDFInfo
- Publication number
- EP1477675A1 EP1477675A1 EP03010887A EP03010887A EP1477675A1 EP 1477675 A1 EP1477675 A1 EP 1477675A1 EP 03010887 A EP03010887 A EP 03010887A EP 03010887 A EP03010887 A EP 03010887A EP 1477675 A1 EP1477675 A1 EP 1477675A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support plate
- pump
- membrane
- diaphragm
- receiving element
- 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.)
- Granted
Links
Images
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
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/04—Pumps having electric drive
Definitions
- the invention relates to a metering pump.
- a generic metering pump is for example from DE 100 12 887 C1 known.
- this metering pump is inside a housing Carrier profile provided in which an eccentric gear is arranged. Furthermore, a drive motor is connected to the carrier profile.
- a diaphragm pump is to the support profile fastened, wherein the diaphragm pump holding bolts in corresponding Intervene grooves on the carrier profile.
- This arrangement has the disadvantage that the carrier profile with its grooves exactly to the Distances of the fastening bolts of the diaphragm pump and thus one specific type of diaphragm pump must be adapted.
- the metering pump according to the invention has a support plate on whose first side a diaphragm pump and at the second opposite directed side a drive unit for driving the diaphragm pump are attached.
- the drive unit is for example an eccentric gear, which a rotational movement of a drive motor in a Linear movement of a membrane driving drive ram converts.
- This drive unit is with its housing or its support structure attached to the second side of the support plate, for example screwed.
- On the first side of the support plate is a diaphragm pump attached.
- the support plate thus forms a connecting element between Diaphragm pump and drive unit, with the support plate in the power flow between diaphragm pump and drive unit is located.
- the must Support plate in particular a tensile force between the diaphragm pump and Drive unit transferred when the drive ram on a compressive force the membrane exerts the force flow between the diaphragm pump and Drive unit to close.
- the inventive arrangement of Support plate allows greater flexibility in connecting different Diaphragm pumps with different drive units, because as a connecting element between the diaphragm pump and drive unit Serving support plate very easy and inexpensive adapted to different diaphragm pumps and / or drive units can be. So it is possible, for example, different Connecting diaphragm pumps with one and the same drive unit whereby the metering pump according to the invention easily to a desired Delivery through appropriate dimensioning of Diaphragm pump can be adjusted.
- the support plate fastening means in which the Diaphragm pump is attached, and fasteners to which the Drive unit is attached, formed.
- This allows one each Independent attachment of drive unit and diaphragm pump.
- This offers in addition to the described greater flexibility in combination of various drive units and diaphragm pumps the Advantage of a simpler installation and maintenance of the invention Metering pump. So the diaphragm pump from the support plate be solved without the drive unit must be solved.
- the drive unit thus remains attached to the support plate when the Membrane pump is released, for example, by another Replace diaphragm pump. This is particularly advantageous when the drive unit is arranged in a pump housing, there then the pump housing to replace an outside of the pump housing arranged diaphragm pump does not need to be opened.
- At least two sets of are particularly preferred in the support plate Fastening means designed for a diaphragm pump, which the Attachment of at least two different diaphragm pumps allow on the support plate.
- a diaphragm pump which the Attachment of at least two different diaphragm pumps allow on the support plate.
- Such an arrangement offers, for example the possibility of two differently dimensioned diaphragm pumps optionally to one and the same pump unit, i. flanging its support plate to the metering pump to different To be able to adapt subsidies and purposes. there remain the drive unit and all other components of the metering pump same, reducing the variety of parts and manufacturing is simplified.
- the fastening means in shape be formed by threaded holes in the support plate.
- the threaded holes arranged differently to each other in the two sentences and in particular spaced differently from each other be.
- the corresponding Tapped holes further apart be as for a smaller diaphragm pump.
- the support plate expediently has a central passage opening on, through which a drive plunger from the drive unit extends to a membrane of the diaphragm pump.
- the central Through opening and arrangement of the drive ram allows the universal applicability for different sized diaphragm pumps with different sized membranes, as the drive ram can always attack centrally on the membrane.
- the fastening means preferably Holes or tapped holes, radially further from the spaced central passage opening.
- the drive unit is preferably arranged in a housing, and the support plate thereby forms at least a part of an end wall of the Housing.
- the housing in addition to the drive unit in addition a control or regulating electronics and appropriate operating and Be arranged display elements.
- the housing is preferably completely closed to the inside of the case arranged elements to protect against environmental influences. This is especially important because dosing pumps are often in demanding Environments are used where, for example, moisture or chemicals are exposed. Due to the fact that the support plate forms at least part of an end wall of the housing, it is possible the diaphragm pump easily from the outside to the housing, d. H. to the Support plate to flare.
- the case has no force-transmitting Function in the power flow between the diaphragm pump and the drive unit, since the occurring between the diaphragm pump and drive unit Forces are transmitted only through the support plate.
- the housing substantially free of those occurring in pumping operation It is possible to make the case out of one comparatively lightweight material, such as plastic to manufacture.
- the housing is designed as a tubular or cup-shaped profile, from its open side, the support plate with the drive unit is inserted into the housing.
- the support plate preferably an outer contour which corresponds to the inner contour of the housing, so that the support plate flush with one end face of the housing can be inserted into the housing opening and this closes.
- the support plate serves not only as a connecting element between Diaphragm pump and drive unit, but at the same time forms one End wall or part of an end wall of the pump housing.
- the diaphragm pump preferably has a pump head, in which a pump space is formed and which between the Support plate and a front plate is clamped.
- the pump head points in a known manner the fluid connections, d. H. Suction and pressure connection, with the associated valves on.
- a Pump chamber formed, which communicates with the terminals stands and is closed on one side by a membrane.
- the Membrane is via a drive plunger of the drive unit so driven that periodically increases and decreases the pump room and thus achieved the desired pumping action.
- the pump head between the support plate and a spaced from this front panel clamped.
- Production the pump head made of plastic is also inexpensive, which again the provision of differently sized pump heads favored.
- the front panel is preferably only a flat Disc made of metal, which is also inexpensive in different Dimensions can be produced.
- the front panel is preferably attached by bolts to the support plate, the bolts extend through the pump head. These are in the pump head recesses or through holes provided, through which the bolts can extend. These bolts are preferably evenly distributed, radially spaced arranged around the pump room, so that the occurring Forces can be absorbed and transmitted evenly. About the bolts between the support plate and front panel are at the pumping action between the support plate and front panel acting Forces absorbed.
- the membrane of the diaphragm pump between the Clamped support plate and the pump head. This can be done in the Pump head a corresponding recess as a receptacle for the Membrane be formed, the diaphragm then between the pump head and support plate is clamped at its periphery. This makes possible a simple installation of the diaphragm pump, as no additional Fasteners for the membrane are required.
- a further preferred embodiment is between the Membrane and the support plate arranged a receiving element, which having a receptacle for the membrane, wherein the membrane Clamped between the pump head and receiving element at its edge is.
- the receiving element allows easy, one to a certain Membrane and a specific pump head adapted To be able to provide accommodation without adapting the support plate have to.
- receiving element, diaphragm and pump head as a unit form an exchangeable diaphragm pump, which on a universally usable support plate can be flanged.
- the Receiving element may preferably be formed of plastic, which allows a cost-effective production.
- the support plate is as a plan Metal part formed while the contoured heels and grooves for receiving the membrane adapted to the membrane in the receiving element are formed.
- the receiving element is preferably together with the pump head between front panel and Clamped support plate, causing these elements on the support plate be fixed and at the same time occurring during the pumping process high pressure forces between pump head, diaphragm and receiving element from the front panel and the support plate and the in between arranged bolts can be accommodated.
- All arranged between support and front panel elements must Therefore, essentially absorb no tensile forces, so they are less solid materials, preferably made of plastic can.
- the receiving element is preferably designed so that it Carrying plate completely covered to the outside and with the housing is sealingly connected.
- This allows for a visually appealing Design of the entire housing, since the receiving element, which is preferably made of plastic, easy on the rest of the design of the housing can be adjusted.
- On the other hand protects a receiving element designed in this way the underlying Support plate against environmental influences. So can the case and the receiving element and the pump head made of plastic be, so as to the outside exposed metal parts only the front plate and its fastening bolts are present.
- These Elements may be made of stainless metal, preferably stainless steel, be made. All other metal parts and especially the preferably also formed of metal support plate are protected arranged inside the housing.
- the receiving element which closes the housing on the front side
- the housing may preferably be a sealing element, for example an elastomeric or rubber seal, be arranged. So no moisture or other harmful substances, such as chemicals in the Penetrate inside of the housing.
- the receptacle for the membrane in the receiving element spaced from the support plate arranged between membrane and support plate a Chamber is formed.
- This chamber between membrane and support plate serves to absorb possible leakage from the pump chamber, for example, in the event that the membrane is leaking.
- This chamber prevents the fluid to be pumped into the interior of the Housing penetrates and possibly damages the drive unit there. Instead, leaking fluid will leak in the chamber collected in the receiving element.
- a drain opening through which the fluid can escape or be discharged.
- the metering pump has a tubular or profile-shaped Gear housing 4, which at its rear end is sealed by the lid 6. On the lid 6 are additionally arranged operating and display elements. Inside the Transmission housing 4 are next to an eccentric 8 to the operation the pump necessary electronic control or regulating devices arranged. At its front end is the gearbox 4 closed by a support plate 10.
- the support plate 10 is made made of metal and has an outer contour, which the inner contour of Gear housing 4 corresponds, so that the support plate 10 at its periphery fitting in the opening on the front end of the gear housing 4 can be used.
- the support plate 10 is preferably held by latching means.
- the support plate Figure 10 illustrates the essential structural element of the invention Metering pump is because it is the mechanical connection between the eccentric gear 8 and diaphragm pump 2a and 2b produces.
- the support plate 10 is a number of mounting holes formed for attachment the eccentric gear and the diaphragm pump 2a and 2b, such as will be explained below with reference to FIG. 2.
- the eccentric 8 has two spaced-apart plate-shaped Carrier 12, which extend normal to the support plate 10.
- the carrier 12 are connected to each other via pins 14 and kept spaced from each other.
- Between the carriers 12 is the actual Crank 16 arranged with the eccentric 18.
- the crank mechanism 16 sets the rotational movement of a drive motor 20 in a linear Forward and backward movement of a drive ram 22 um.
- the drive tappet 22 causes a deflection of the membrane 24a and 24b.
- the eccentric 8 is at the back of the support plate 10, which the interior of the transmission housing 4 faces, attached.
- fastening bolts 26 provided, which from the front, i. from the outside extend through the through holes 28 in the support plate 10 therethrough and engage in the holes in the end faces of the carrier 12.
- the through holes 28 are corresponding paragraphs or investment shoulders formed on which the screw heads of the fastening bolts 26 abut.
- the front of the support plate 10, d. H. with respect to the transmission housing 4 outward side, is for mounting a diaphragm pump 2a or 2b designed.
- This is on the front of the Support plate 10 a plurality of threaded holes 30 formed in which screws 32 for fixing the diaphragm pump 2a or 2b can intervene.
- the support plate 10 are two circular arrangements provided by threaded bores 30, wherein the radially further inside threaded holes 30 for fixing a smaller Diaphragm pump 2b and the radially outer threaded holes 30 for attachment of a larger diaphragm pump 2a serve.
- the diaphragm pumps 2a and 2b consist essentially of four Parts, a receiving element 34 a and 34 b, the membrane 24 a , a pump head 36a and 36b and a front plate 38a and 38b. Subsequently, the structure of the diaphragm pump is only on Example of the diaphragm pump 2a described, the structure of the diaphragm pump 2b is identical except for its dimensions.
- the entire diaphragm pump 2a consisting of pump head 36a, Diaphragm 24a and receiving member 34a pass through the front panel 38a and the screws 32 fixed to the support plate 10.
- the screws 32 extend through corresponding through holes 40a and 42a in the pump head 36a and the receiving element 34a and engage in the threaded holes 30 in the support plate 10 a.
- the pump head 36a and the receiving element 42a between the front plate 38a and the support plate 10 via the screws 32nd clamped.
- the fluid connections 44 have in known Way valve devices.
- the diaphragm pump d. H. the pump head 36a, the Membrane 24a and the receiving element 34a, between the front panel 38a and the support plate 10 is clamped, the at Pumping occurring high pressure forces between the receiving element 34a and the diaphragm 24a and the pump head 36a of the support plate 10 and the front plate 38a and the screws 32 recorded.
- This allows the receiving element 34a and to form the plastic pump head 36a since in this way the tensile forces or tensile stresses to be absorbed by these elements be reduced.
- the support plate 10 and the front panel 38a and the screws 32 are formed of stainless metal.
- the front plate 38a and the pump head 36a are also provided with openings provided in which a vent valve 46 can be used, to vent the pump space inside the pump head 36a can.
- the receiving element 34a or 34b is formed so that it a cover plate for the front end side of the transmission case. 4 forms. That is, the receiving element 34a has an outer contour on which of the outer contour of the gear housing 4 at the end face corresponds, so that the peripheral edges of the receiving element 34 a at the front edges of the front end side of the transmission housing. 4 can come to the plant. Between the thus formed receiving element 34a and the front edge of the transmission case 4 is in addition a seal 48 is arranged. This causes the receiving element 34a, the transmission housing 4 closes sealingly to the front.
- the structure of the support plate 10 is described in more detail with reference to the top view of the front side of the support plate 10 in Fig. 2 and the sectional view along the line B-B in Fig. 2, which is shown in Fig. 3 described.
- the Support plate 10 has a central passage opening 50 through which is the drive rod 22 from the eccentric 8 to the Membrane 24a and 24b extends. Radially closest to the central through hole 50 are the through holes 28 to Attachment of the carrier 12 by means of the fastening bolts 26. Radial on lying outside are two rings around the passage opening 50 around formed by threaded holes 30 for receiving the screws 32.
- the inner ring of holes 30 is used to attach the in diameter smaller diaphragm pump 2b, while the outer Ring of holes 30 for attachment of the larger diaphragm pump 2a is used.
- the two diaphragm pumps 2a and 2b differ due to their size in the delivery volume and the producible differential pressure.
- the appropriate diaphragm pump be flanged to the support plate 10. It can too more than two types of diaphragm pumps 2 to the support plate 10th be flanged.
- the advantage here is that the attachment of the diaphragm pumps 2 regardless of the attachment of the eccentric 8th on the support plate 10 is.
- the support plate 10 is located in the power flow between Diaphragm pump 2 and eccentric 8, leaving the gearbox 4 of the operating forces occurring in pumping operation largely is kept free. This allows the transmission housing 4 cost made of plastic and only a few, in operation manufacture mechanically loaded elements made of metal.
- Fig. 4 shows a sectional view of the receiving element 34b, wherein the Receiving element 34a accordingly, only larger is formed.
- the receiving element 34b has a substantially planar design Rear side 51, the edge 52 axially projecting to engage in the transmission housing 4 is formed.
- the seal 48 (see Fig. 1) between receiving element 34b and gear housing 4th arranged to seal the interior of the transmission case 4 to the outside.
- 51 pins 54 are formed on the rear side, which for positioning in additional holes on the support plate 10th intervention.
- the receiving element 34b has a annular projection on, at its outer end an annular Receiving 56 is formed for the membrane 24b.
- a chamber 58 formed in which leakage be absorbed in a leak of the membrane can.
- the chamber 58 has a drain opening 60 for draining this leaked fluid.
- an opening 62 through which the drive ram 22 extends to the diaphragm 24b.
- a gasket 64 (see Fig. 1) is inserted around the opening 62 seal, d. H. the sealing collar 64 seals the drive tappet 22 against the receiving element 34b, so that out of the chamber 58 no fluid can penetrate into the interior of the transmission housing 4.
- pins 66 are additionally provided, which engage in corresponding recesses on the pump head 36b, to position it on the receiving element 34b.
- the pump head 36b is shown in section in FIG. At the receiving element 34b facing side, the pump head 36b a Recording 68 on.
- the membrane 24b is between the receptacle 68 and the receptacle 56 on the receiving element 52 by clamping fixed at the circumference.
- Inside the pump head 36b is a Pump chamber 70 is formed, which of the at the receiving 68th adjacent membrane 24b is closed.
- the pump room 70 is in communication with the fluid ports 44, in which in known Way valve means are used.
- an opening 72 is formed which also communicates with the pump space 70 is in communication and for receiving the vent valve 46th serves.
- the through holes 40b and 42b for the screws 32 are in Figures 4 and 5 can not be seen in the sections shown there.
- receiving element 34b diaphragm 24b and pump head 36b set together so that the membrane 24b between the receptacles 56 and 68 is temporarily stored. Then this will Arrangement with the front plate 38 b and the screws 32 to the Screwed support plate 10, wherein the assembly of membrane 24 b, Receiving element 34b and pump head 36b between the front panel 38b and the support plate 10 is clamped. At the same time the receiving element 34b with its edge 52 against the front edge of the transmission housing 4, so that the transmission housing 4 at this Side tightly closed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
- Fig. 1
- eine Explosionsansicht der erfindungsgemäßen Dosierpumpe mit zwei wahlweise anzubringenden Pumpenköpfen,
- Fig. 2
- eine Draufsicht auf die Tragplatte,
- Fig. 3
- eine Schnittansicht der Tragplatte gemäß Fig. 2 entlang der Linie B-B in Fig. 2,
- Fig. 4
- eine Schnittansicht des Aufnahmeelementes und
- Fig. 5
- eine Schnittansicht des Pumpenkopfes.
- 2a, 2b
- - Membranpumpe
- 4
- - Getriebegehäuse
- 6
- - Deckel
- 8
- - Exzentergetriebe
- 10
- - Tragplatte
- 12
- - Träger
- 14
- - Stifte
- 16
- - Kurbeltrieb
- 18
- - Exzenter
- 20
- - Motor
- 22
- - Antriebsstößel
- 24
- - Membran
- 26
- - Befestigungsbolzen
- 28
- - Durchgangslöcher
- 30
- - Gewindebohrungen
- 32
- - Schrauben
- 34a, 34b
- - Aufnahmeelement
- 36a, 36b
- Pumpenkopf
- 38a, 38b
- - Frontplatte
- 40a, 40b, 42a, 42b
- - Durchgangslöcher
- 44
- - Fluidanschlüsse
- 46
- - Entlüftungsventil
- 48
- - Dichtung
- 50
- - Durchgangsöffnung
- 51
- - Rückseite
- 52
- - Rand
- 54
- - Zapfen
- 56
- - Aufnahme
- 58
- - Kammer
- 60
- - Ablassöffnung
- 62
- - Öffnung
- 64
- - Dichtmanschette
- 66
- - Zapfen
- 68
- - Aufnahme
- 70
- - Pumpenraum
- 72
- - Öffnung
Claims (12)
- Dosierpumpe mit einer Tragplatte (10), an deren erster Seite eine Membranpumpe (2a; 2b) und an deren zweiter, entgegengesetzt gerichteter Seite eine Antriebseinheit (8) zum Antrieb der Membranpumpe (2a; 2b) derart befestigt sind, dass die Tragplatte (10) im Kraftfluss zwischen Membranpumpe (2a; 2b) und Antriebseinheit (8) liegt.
- Dosierpumpe nach Anspruch 1, bei welcher in der Tragplatte (10) Befestigungsmittel (30), an denen die Membranpumpe (2a; 2b) befestigt ist, und Befestigungsmittel (28), an denen die Antriebseinheit (8) befestigt ist, ausgebildet sind.
- Dosierpumpe nach Anspruch 1 oder 2, bei welcher in der Tragplatte (10) zumindest zwei Sätze von Befestigungsmitteln (30) für eine Membranpumpe (2a; 2b) ausgebildet sind, welche die Befestigung von zumindest zwei unterschiedlichen (2a; 2b) Membranpumpen an der Tragplatte (10) ermöglichen.
- Dosierpumpe nach einem der vorangehenden Ansprüche, bei welcher die Tragplatte (10) eine zentrale Durchgangsöffnung (50) aufweist, durch welche sich ein Antriebsstößel (22) von der Antriebseinheit (8) zu einer Membran (24a; 24b) der Membranpumpe (2a; 2b) erstreckt.
- Dosierpumpe nach einem der vorangehenden Ansprüche, bei welcher die Antriebseinheit (8) in einem Gehäuse (4) angeordnet ist und die Tragplatte (10) zumindest einen Teil einer Stirnwand des Gehäuses (4) bildet.
- Dosierpumpe nach einem der vorangehenden Ansprüche, bei welcher die Membranpumpe (2a; 2b) einen Pumpenkopf (36a; 36b) aufweist, in welchem ein Pumpenraum (70) ausgebildet ist und welcher zwischen der Tragplatte (10) und einer Frontplatte (38a; 38b) eingespannt ist.
- Dosierpumpe nach Anspruch 6, bei welcher die Frontplatte (38a; 38b) mit Bolzen (32) an der Tragplatte (10) befestigt ist, wobei sich die Bolzen (32) durch den Pumpenkopf (36a; 36b) hindurch erstrecken.
- Dosierpumpe nach Anspruch 6 oder 7, bei welcher eine Membran (24a; 24b) der Membranpumpe (2a; 2b) zwischen der Tragplatte (10) und dem Pumpenkopf (36a; 36b) eingespannt ist.
- Dosierpumpe nach Anspruch 8, bei welcher zwischen der Membran (24a; 24b) und der Tragplatte (10) ein Aufnahmeelement (34a; 34b) angeordnet ist, welches eine Aufnahme (56) für die Membran (24a; 24b) aufweist, wobei die Membran (24a; 24b) zwischen Pumpenkopf (36a; 36b) und Aufnahmeelement (34a; 34b) eingespannt ist.
- Dosierpumpe nach Anspruch 9, bei welcher das Aufnahmeelement (34a; 34b) die Tragplatte (10) nach außen vollständig überdeckt und mit dem Gehäuse (4) dichtend verbunden ist.
- Dosierpumpe nach Anspruch 9 oder 10, bei welcher die Aufnahme (56) für die Membran (24a; 24b) in dem Aufnahmeelement (34a; 34b) beabstandet zu der Tragplatte (10) angeordnet ist, wobei zwischen Membran (24a; 24b) und Tragplatte (10) eine Kammer (58) ausgebildet ist.
- Dosierpumpe nach Anspruch 9, bei welcher die Kammer (58) mit einer Ablauföffnung (60) versehen ist.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50304219T DE50304219D1 (de) | 2003-05-15 | 2003-05-15 | Dosierpumpe |
EP03010887A EP1477675B1 (de) | 2003-05-15 | 2003-05-15 | Dosierpumpe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03010887A EP1477675B1 (de) | 2003-05-15 | 2003-05-15 | Dosierpumpe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1477675A1 true EP1477675A1 (de) | 2004-11-17 |
EP1477675B1 EP1477675B1 (de) | 2006-07-12 |
Family
ID=33016897
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03010887A Expired - Lifetime EP1477675B1 (de) | 2003-05-15 | 2003-05-15 | Dosierpumpe |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1477675B1 (de) |
DE (1) | DE50304219D1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020074579A1 (de) * | 2018-10-11 | 2020-04-16 | Almatec Maschinenbau Gmbh | Spannvorrichtung für eine vorrichtung zur förderung von fluid und vorrichtung zur förderung von fluid |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2173462A5 (de) * | 1972-02-25 | 1973-10-05 | Huot De Longchamp Jacque | |
US4523902A (en) * | 1982-01-23 | 1985-06-18 | Chemie Und Filter Gmbh Verfahrenstechnik Kg | Diaphragm pump for use in an explosive atmosphere |
DE29709831U1 (de) * | 1997-06-06 | 1997-08-14 | Wolfgang Eichler GmbH & Co KG, 76327 Pfinztal | Dosierpumpe mit einem flanschartigen Zwischenstück zur Montage am Einsatzort |
US5676531A (en) * | 1996-03-21 | 1997-10-14 | Pulsafeeder, Inc. | Autoclavable pump head assembly |
-
2003
- 2003-05-15 DE DE50304219T patent/DE50304219D1/de not_active Expired - Lifetime
- 2003-05-15 EP EP03010887A patent/EP1477675B1/de not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2173462A5 (de) * | 1972-02-25 | 1973-10-05 | Huot De Longchamp Jacque | |
US4523902A (en) * | 1982-01-23 | 1985-06-18 | Chemie Und Filter Gmbh Verfahrenstechnik Kg | Diaphragm pump for use in an explosive atmosphere |
US5676531A (en) * | 1996-03-21 | 1997-10-14 | Pulsafeeder, Inc. | Autoclavable pump head assembly |
DE29709831U1 (de) * | 1997-06-06 | 1997-08-14 | Wolfgang Eichler GmbH & Co KG, 76327 Pfinztal | Dosierpumpe mit einem flanschartigen Zwischenstück zur Montage am Einsatzort |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020074579A1 (de) * | 2018-10-11 | 2020-04-16 | Almatec Maschinenbau Gmbh | Spannvorrichtung für eine vorrichtung zur förderung von fluid und vorrichtung zur förderung von fluid |
Also Published As
Publication number | Publication date |
---|---|
EP1477675B1 (de) | 2006-07-12 |
DE50304219D1 (de) | 2006-08-24 |
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