EP0523434A1 - Organe de positionnement actionné par pression, en particulier pour un dispositif de levage, de halage et de poussage - Google Patents

Organe de positionnement actionné par pression, en particulier pour un dispositif de levage, de halage et de poussage Download PDF

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Publication number
EP0523434A1
EP0523434A1 EP92110935A EP92110935A EP0523434A1 EP 0523434 A1 EP0523434 A1 EP 0523434A1 EP 92110935 A EP92110935 A EP 92110935A EP 92110935 A EP92110935 A EP 92110935A EP 0523434 A1 EP0523434 A1 EP 0523434A1
Authority
EP
European Patent Office
Prior art keywords
pressure
pressure medium
operated actuator
actuator according
lifting
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
Application number
EP92110935A
Other languages
German (de)
English (en)
Other versions
EP0523434B1 (fr
Inventor
Josef Büter
Hermann Janzen
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.)
HYDRAULIK TECHNIEK
Original Assignee
HYDRAULIK TECHNIEK
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 DE9108646U external-priority patent/DE9108646U1/de
Priority claimed from DE9115994U external-priority patent/DE9115994U1/de
Priority claimed from DE9200868U external-priority patent/DE9200868U1/de
Application filed by HYDRAULIK TECHNIEK filed Critical HYDRAULIK TECHNIEK
Publication of EP0523434A1 publication Critical patent/EP0523434A1/fr
Application granted granted Critical
Publication of EP0523434B1 publication Critical patent/EP0523434B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/065—Scissor linkages, i.e. X-configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/35—Inflatable flexible elements, e.g. bellows
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/08—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated

Definitions

  • the invention relates to a pressure medium operated actuator, in particular for a lifting, moving or pushing device in an embodiment according to the preamble of claim 1.
  • At least two base segments designed as hollow bodies are connected to one another as pressure beams via a plate-shaped tilting element rotatably articulated on hinge bolts in such a way that with at least one inner tube or tube segment as an expansion body which can be subjected to changing fluid pressure a swiveling movement around the hinge pin can be initiated on the inner tilting element and the base segments assume different angular positions with respect to a pressure-dependent change in position of the tilting plate.
  • the actuating forces that can be achieved with this deflection are limited by the restricted actuating paths in the individual base segment and the tubular expansion body is exposed to increased buckling loads in the area of the hinge bolts at the edge area of the tilting elements, which adversely affect the service life of the hoses.
  • the invention has for its object to provide a pressure medium-operated actuator, in particular for a lifting, moving and pushing device, with which the deflection of larger actuating forces can be achieved with a high degree of safety even with a reduced size and thus a more universal usability with little construction effort is possible.
  • the invention provides a pressure medium-operated actuator, in particular for a lifting, moving or pushing device, whose expansion body, which can be acted upon with liquid or gaseous fluid at different pressures, is combined in the base segment with the drive element of the transmission which takes up the change in position that is combined with different types of transmissions and transmission ratios a deflection of the change in position of the pressure body into almost any actuating forces and / or output torques of the transmission can be achieved.
  • the usability of such an actuator is improved in that large actuating forces can also be generated over concatenated base segments with a small space requirement and little construction effort.
  • a preferred kink-free parallel guidance of the expansion body in the base segment with each change in the actuating force producing volume changes in the service life avoiding regionally overloading, so that the safety and reliability of such an actuator is increased overall.
  • An advantageous embodiment of the pressure medium-operated actuator for a lifting device is specified in claim 8, in particular with the two basic segments penetrating Scissor pin a lifting table is formed, which releases a drive torque via the deflection of the change in position of the respective pressure element in the base segment, with which actuating forces of almost any size can be realized on the lifting table.
  • the area of application of such a lifting table is improved in that large actuating forces can be generated with it, with a small construction requirement and with little design effort.
  • an advantageously continuously adjustable lifting table via a scissor-type frame is formed with the internal pressure bodies.
  • the pressure bodies filled with a liquid can be appropriately combined with an external compressed air system via an upstream hydropneumatic pressure converter in such a way that the lifting device combines the advantages of an indirect compressed air drive at any location and a direct liquid drive on the continuously adjustable lifting table.
  • the liquid supply and liquid discharge can be regulated with little effort via a check valve integrated in the feed line, so that reliable support is ensured in the respective lifting position of the lifting table.
  • an overall designated 1 actuator is shown in a schematic diagram, a sectional representation being used at least partially to illustrate the components located within a base segment 2.
  • an expansion body 7 designed as a hose segment is arranged between a wall surface 4 delimiting an interior space 3 and a pressure introduction surface 5 of a pressure body 6.
  • the suitably made of rubber-elastic material hose 7 is provided with known fluid connections 8, via which a fluid can build up a variable internal pressure in the expansion body 7 with a pressure generator, not shown, so that hose wall areas 9, 10 (Fig. 2) spaced apart on the one hand rest on the wall surface 4 of the base segment 2 and on the other hand on the pressure introduction surface 5 of the pressure body 6.
  • connecting members 11, 12 are respectively arranged on the end of the pressure body 6, which, in the preferred embodiment, form a rack and pinion gear in the form of rack members with corresponding actuator members 13, 14 designed as pinions.
  • the actuators 13, 14 are at least in some areas form-fitting engagement areas to this transfer element 15 are arranged in operative connection such that a torque in the actuators 13, 14 is generated via an especially parallel change in the distance of the pressure body 6 from the wall surface 4 and is deflected in a direction of movement 16 onto the transmission element 15 designed as a rack.
  • actuating movement can be tapped on the actuator 1 in the embodiment according to FIG. 1 both as a drive torque on the actuator 14 and as a thrust on the transmission element 15, since these components enable a coupling in the longitudinal direction of the actuator 1 in an end region 17 projecting beyond the base segment 2.
  • Fig. 3 shows an expanded sectional view of the actuator 1, an embodiment in which the actuator 14 is formed with an axial extension 18 which has a lateral output coupling for tapping the drive torque.
  • the actuator 1 shown in FIG. 4 is formed by two base segments 2, 2.1 connected in the area of the common actuator 14.1. These symmetrically formed base segments 2, 2.1 each have the tubular expansion body 7 in the interior 3, so that with the mutually coordinated change in the internal pressure therein, the change in the distance between the pressure bodies 6 of the respective inner wall surface 4 is a pivoting movement of either one, while fixing the other the base segments 2, 2.1, or both simultaneously about a common axis 19 of the actuator 14.1.
  • one of the base segments 2, 2.1 can optionally be supported in a stable position and the respective free segment can execute the pivoting movement about the axis 19 which is proportional to the change in distance.
  • the actuator 1 in one embodiment of the actuator 1 according to FIG. 5, a possibility is shown, by superimposing at least two or more tubular expansion bodies 7, 7.1 designed with the same or unequal filling volume, the amount of the possible change in distance in the interior 3 of the base segment 2 between the inner wall surface with little effort 4 and pressure body 6 to enlarge, so that a constant drive torque can be generated over a large angle of rotation on the actuators 13, 13.1, 14.1.
  • the base segment 2 in the embodiment according to FIG. 6 has on its pressure body 6 connecting elements 11, 12 which, in a modified embodiment, are designed as pressure rods 20, 21 which are supported on actuators 13, 14 provided with swivel levers 22, 23 and deflect the displacement of the pressure body 6.
  • the rod-shaped transmission element 15 is also connected to the actuators 13, 14 via lever-shaped members 24, 25, so that a corresponding drive coupling is possible in the end region 17 (similar to FIG. 2).
  • FIG. 7 shows a basic segment, generally designated 101, as a pressure medium-operated actuating element for a lifting table 102 (FIGS. 9, 10), a sectional illustration being used at least partially to clarify the components located within the base segment 101 is.
  • two expansion bodies 103, 103 ' are arranged between a respective wall area 104, 104' of the base segment 101 and a pressure body in the form of a plate body 105, 105 'in such a way that the expediently as a hose segment made of rubber-elastic Expansion body 103, 103 'formed of material transmits the plate body 105, 105' when the expansion body is pressurized (FIG. 8), an associated volume change via a pressure introduction surface 106, 106 'to the plate body 105, 105' with simultaneous support on the respective wall area 104, 104 'and mediates a pressure-dependent movement.
  • the movement of the plate body 105, 105 ' can be transmitted at one end directly via a lever-shaped plate extension 107, 107' and at the other end indirectly via an angled deflection lever 108, 108 'to a scissor pin, designated overall by 109.
  • a scissor pin designated overall by 109.
  • both the plate extension 107, 107 'and the deflection lever 108, 108' are each fixed via a support member 111, 112, 111 ', 112' offset by 90 ° in such a way that the movement of the plate body 105, 105 'is prevented Effect of the internal pressure in the expansion body 103, 103 'in the scissor pin 109 is initiated as a rotary movement generating a drive torque.
  • deflection members 115, 116, 115 ', 116' are provided on the deflection lever 108, 108 'on an end angle arm 113, 113' opposite the scissor pin 109, both on the pressure element 105, 105 'and on a wall area 114, 114' of the base segment 101, which both move the deflection lever 108, 108 ' in the area of an underside 117, 117 'of the plate body 105, 105' and on an inner surface 118, 118 'of the wall area 114, 114' by means of a rolling element 119, 120, 119 ', 120'.
  • the wall region 114, 114 'of the base segment 101 is formed in each case by a stable head plate, which has an inclination adapted to the direction of movement 121, 121' of the plate body 105, 105 ', so that the rolling element 120, 120' can be moved with the least frictional resistance.
  • the respective plate bodies 105, 105 ' are provided with a side plate 122, 122' arranged perpendicular to the pressure introduction surface 106, 106 ', which enables safe lateral guidance when the plate body 105, 105' is moved.
  • the side plate 122, 122 ' is additionally provided with an elongated hole 123, 123' which receives a bolt 124, 124 'which limits the lifting movement of the plate body 105, 105', the elongated hole 123, 123 'being preferably provided in the front region of the side plate 122, 122' facing the scissor bolt 109.
  • the respective lifting position is determined by the rolling path covered by the rolling element 120, 120 ′ on the inner surface 118, 118 ′ of the head plate, a stop plate 114.1, 114.1 ′ being provided as the stroke limitation can be, which, together with the pin 124, 124 'guided in the elongated hole 123, 123', enables a preselectable end position.
  • the lifting table 102 can be positioned in a position that largely relieves the construction, particularly in the unloaded state.
  • the respective expansion body 103, 103 ' is provided with a fluid connection 125, 125', via which a fluid is introduced into the expansion body 103, 103 'with a pressure generator (not illustrated in any more detail), a corresponding supply line 126, 126 being used, for example, when using compressed air 'can be brought up to the base segment 101 with little effort.
  • FIGS. 9 and 10 illustrate in principle the lifting table designated 102 as a whole, wherein two base segments 101, 101 'are connected to the internal structure described above via the connecting shaft 110 forming a shear axis 127.
  • an upper plate 129 can be brought into the end of stroke position determined by a lifting height 130 via the scissor movement of the two base segments 101, 101 ′ .
  • the lifting table can also assume continuously adjustable scissor positions, which form a lower lifting height 130, so that the lifting table 102 opens up a universal range of uses overall, since a weight F that can be moved continuously over the entire lifting height 130 is variable within wide limits , which can be determined via appropriately dimensioned base segments 101, 101 '.
  • the base segments 101, 101 ' are supported in the region of a subframe 131, one end region of the base segment 101, 101' being fixed in the manner of a fixed bearing 132, 133 on the subframe 131 or on the top plate 129, and the other end regions of the base segment 101, 101 'being movable on a roll Lower frame 131 or on the top plate 129 are guided via associated roller bearings 134, 135.
  • a support strut 136 is provided to support the upper plate 129 extended into a predetermined lifting position, for example during maintenance work, which can be connected as a securing element to the upper plate 129.
  • a cover plate 137 is provided in the area of the connecting shaft 101 and a circumferential dirt bar 138 is attached to the underside of the top plate 129, so that such a lifting table 102 can also be used reliably under rough operating conditions.
  • Upper plates 129 are used, which have a length 139 and a width 140, which are essentially determined by the dimensioning of the respective base segments 101, 101 'and can thus be adapted to different requirements with little effort.
  • FIG. 11 shows a lifting device designed as a lifting table 201 in a further embodiment, an upper plate 202 being supported in the stroke end position shown via two base segments 204, 205 forming a scissor-type frame 203.
  • the top plate 202 can be adjusted steplessly in the area of a lifting height H by applying a torque to a connecting shaft 207 via a pressure medium-operated actuator 206, with which the base segments 204, 205 supported in the area of a respective fixed bearing 208, 209 in Area of their respective roller bearings 210, 211 are shifted accordingly, so that the top plate 201 is at a corresponding distance from a lower frame 212.
  • the respective actuator 206 is connected to a hydropneumatic pressure converter 214 via a feed line 213.
  • a check valve 215 regulating the liquid supply and liquid discharge is provided, which allows any release or interruption of the liquid flow with little effort.
  • the pressure transducer 214 is provided as a pressure vessel 220 which is circular in cross-section and separates a compressed air space 218 supplied with compressed air via an external supply line 217 from an liquid space 219 connected to the liquid supply line 213 via an external supply line 217.
  • the basic function of the lifting table according to the invention is also ensured if the compressed air introduced into the pressure container 220 and the liquid contained therein meet directly (not shown).
  • water can in particular be provided as the liquid, with an adequately safe long-term exposure being possible by forming the supply line 213, the locking valve 215 and the pressure vessel 220 from corrosion-resistant material.
  • flat lifting tables 201 for example with a construction height ⁇ 0.25 x lifting height H
  • a lower lifting range which is formed by scissor positions of the base segments 204, 205 in an angular range from 0 ° to 15 ° (not shown), be moved with high accuracy and supported safely.
  • the object of the invention is not limited to the embodiments shown in the drawings and described above. Rather, other configurations are also conceivable within the scope of the claims.
  • the actuator 1 shown in cross section in FIGS. 2 and 3 with the approximately rectangular interior 3 in the illustrated base segments 7; 101 '(FIG. 7); 204, 205 (FIG. 11) may also be designed with a different hollow profile shape and the application of the actuator 1 according to the invention is not limited to the specific application devices shown in FIGS. 9, 10 and 11, but can be modified to any desired modifications of the lifting and displacement - Or thrust devices can be expanded with the actuator 1 as a drive element, so that the combination of a tubular expansion body according to the invention with a transmission is included.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Actuator (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Forklifts And Lifting Vehicles (AREA)
EP92110935A 1991-07-13 1992-06-27 Organe de positionnement actionné par pression, en particulier pour un dispositif de levage, de halage et de poussage Expired - Lifetime EP0523434B1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE9108646U DE9108646U1 (de) 1991-07-13 1991-07-13 Druckmittelbetriebenes Stellorgan, insbesondere für eine Hub-, Verhol- oder Schubvorrichtung
DE9108646U 1991-07-13
DE9115994U 1991-12-23
DE9115994U DE9115994U1 (de) 1991-12-23 1991-12-23 Druckmittelbetriebenes Stellorgan, insbesondere für eine Hubvorrichtung
DE9200868U DE9200868U1 (de) 1992-01-25 1992-01-25 Hubvorrichtung
DE9200868U 1992-01-25

Publications (2)

Publication Number Publication Date
EP0523434A1 true EP0523434A1 (fr) 1993-01-20
EP0523434B1 EP0523434B1 (fr) 1997-03-12

Family

ID=27208317

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92110935A Expired - Lifetime EP0523434B1 (fr) 1991-07-13 1992-06-27 Organe de positionnement actionné par pression, en particulier pour un dispositif de levage, de halage et de poussage

Country Status (3)

Country Link
EP (1) EP0523434B1 (fr)
AT (1) ATE149965T1 (fr)
DE (1) DE59208160D1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9480797B1 (en) 2015-10-28 2016-11-01 Bayer Healthcare Llc System and method for syringe plunger engagement with an injector
US9694131B2 (en) 2003-11-25 2017-07-04 Bayer Healthcare Llc Medical injector system
US9744305B2 (en) 2012-09-28 2017-08-29 Bayer Healthcare Llc Quick release plunger
US9844622B2 (en) 2000-07-10 2017-12-19 Bayer Healthcare Llc Syringes for medical injector systems
US9855390B2 (en) 2006-03-15 2018-01-02 Bayer Healthcare Llc Plunger covers and plungers for use in syringes
USD847985S1 (en) 2007-03-14 2019-05-07 Bayer Healthcare Llc Syringe plunger cover
US10806852B2 (en) 2014-03-19 2020-10-20 Bayer Healthcare Llc System for syringe engagement to an injector
USD942005S1 (en) 2007-03-14 2022-01-25 Bayer Healthcare Llc Orange syringe plunger cover
USD1002840S1 (en) 2007-03-14 2023-10-24 Bayer Healthcare Llc Syringe plunger
US11883636B2 (en) 2018-02-27 2024-01-30 Bayer Healthcare Llc Syringe plunger engagement mechanism
US11969582B2 (en) 2017-01-06 2024-04-30 Bayer Healthcare Llc Syringe plunger with dynamic seal
US11998718B2 (en) 2020-06-18 2024-06-04 Bayer Healthcare Llc System and method for syringe plunger engagement with an injector
USD1031029S1 (en) 2003-11-25 2024-06-11 Bayer Healthcare Llc Syringe plunger

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB931465A (en) * 1961-05-11 1963-07-17 Bristol Siddeley Engines Ltd Fluid pressure responsive actuating device
US3174722A (en) * 1962-09-17 1965-03-23 Erhard J Alm Load lifting device
FR2288056A1 (fr) * 1974-10-19 1976-05-14 Finkbeiner W Dispositif pour le levage de vehicules
GB2047344A (en) * 1979-04-16 1980-11-26 Liquidonics Inc Actuator assembly for rotary valve
US4323141A (en) * 1980-03-11 1982-04-06 Fmc Corporation Rail-mounted vehicle jack
US4373701A (en) * 1980-11-28 1983-02-15 Mitsuhiro Kishi Lifting apparatus
DE3801491A1 (de) * 1988-01-20 1989-08-03 Reinhard Hahn Hubgeraet zum ansetzen an ein durchlaufregal
NL8900662A (nl) * 1989-03-17 1990-10-16 Int Market Dev B V Schaarhefinrichting.
EP0415687A1 (fr) * 1989-08-26 1991-03-06 V.L. Churchill Limited Châssis de levage

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB931465A (en) * 1961-05-11 1963-07-17 Bristol Siddeley Engines Ltd Fluid pressure responsive actuating device
US3174722A (en) * 1962-09-17 1965-03-23 Erhard J Alm Load lifting device
FR2288056A1 (fr) * 1974-10-19 1976-05-14 Finkbeiner W Dispositif pour le levage de vehicules
GB2047344A (en) * 1979-04-16 1980-11-26 Liquidonics Inc Actuator assembly for rotary valve
US4323141A (en) * 1980-03-11 1982-04-06 Fmc Corporation Rail-mounted vehicle jack
US4373701A (en) * 1980-11-28 1983-02-15 Mitsuhiro Kishi Lifting apparatus
DE3801491A1 (de) * 1988-01-20 1989-08-03 Reinhard Hahn Hubgeraet zum ansetzen an ein durchlaufregal
NL8900662A (nl) * 1989-03-17 1990-10-16 Int Market Dev B V Schaarhefinrichting.
EP0415687A1 (fr) * 1989-08-26 1991-03-06 V.L. Churchill Limited Châssis de levage

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9844622B2 (en) 2000-07-10 2017-12-19 Bayer Healthcare Llc Syringes for medical injector systems
US10434249B2 (en) 2003-11-25 2019-10-08 Bayer Healthcare Llc Medical injector system
US9694131B2 (en) 2003-11-25 2017-07-04 Bayer Healthcare Llc Medical injector system
US10894124B2 (en) 2003-11-25 2021-01-19 Bayer Healthcare Llc Medical injector system
US11596735B2 (en) 2003-11-25 2023-03-07 Bayer Healthcare Llc Medical injector system
USD1031029S1 (en) 2003-11-25 2024-06-11 Bayer Healthcare Llc Syringe plunger
US10668221B2 (en) 2006-03-15 2020-06-02 Bayer Healthcare Llc Plunger covers and plungers for use in syringes
US9855390B2 (en) 2006-03-15 2018-01-02 Bayer Healthcare Llc Plunger covers and plungers for use in syringes
USD847985S1 (en) 2007-03-14 2019-05-07 Bayer Healthcare Llc Syringe plunger cover
USD1030052S1 (en) 2007-03-14 2024-06-04 Bayer Healthcare Llc Syringe plunger
USD1030051S1 (en) 2007-03-14 2024-06-04 Bayer Healthcare Llc Syringe plunger
USD942005S1 (en) 2007-03-14 2022-01-25 Bayer Healthcare Llc Orange syringe plunger cover
USD1002840S1 (en) 2007-03-14 2023-10-24 Bayer Healthcare Llc Syringe plunger
US10286152B2 (en) 2012-09-28 2019-05-14 Bayer Healthcare Llc Quick release plunger
US9744305B2 (en) 2012-09-28 2017-08-29 Bayer Healthcare Llc Quick release plunger
US11103637B2 (en) 2014-03-19 2021-08-31 Bayer Healthcare Llc System for syringe engagement to an injector
US11383029B2 (en) 2014-03-19 2022-07-12 Bayer Healthcare Llc System for syringe engagement to an injector
US10806852B2 (en) 2014-03-19 2020-10-20 Bayer Healthcare Llc System for syringe engagement to an injector
US11547794B2 (en) 2015-10-28 2023-01-10 Bayer Healthcare Llc System and method for syringe plunger engagement with an injector
US9480797B1 (en) 2015-10-28 2016-11-01 Bayer Healthcare Llc System and method for syringe plunger engagement with an injector
US10512721B2 (en) 2015-10-28 2019-12-24 Bayer Healthcare Llc System and method for syringe plunger engagement with an injector
US11969582B2 (en) 2017-01-06 2024-04-30 Bayer Healthcare Llc Syringe plunger with dynamic seal
US11883636B2 (en) 2018-02-27 2024-01-30 Bayer Healthcare Llc Syringe plunger engagement mechanism
US11998718B2 (en) 2020-06-18 2024-06-04 Bayer Healthcare Llc System and method for syringe plunger engagement with an injector

Also Published As

Publication number Publication date
DE59208160D1 (de) 1997-04-17
EP0523434B1 (fr) 1997-03-12
ATE149965T1 (de) 1997-03-15

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