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公开(公告)号：US11179716B2
公开(公告)日：2021-11-23
申请号：US16309037
申请日：2017-05-24
Applicant: Eppendorf AG
Inventor： Jens Wilmer
Abstract: A metering head comprising: a carrier having parallel attachments, a stop plate having first holes through which the attachments extend, each attachment having: a tube with a projecting supporting protrusion, a sleeve with a tapering at the bottom end, an elastomer O-ring that encloses the tube, and the sleeves can be shifted between a release position and a clamping position; in the clamping position, the sleeves with the taperings are pressed into the O-rings and expand them, a first shifting apparatus shifting the sleeves between the release position and the clamping position, a second displacement apparatus shifting the stop plate between a stop position and an ejection position, wherein the second shifting apparatus has rocker arms pivotably mounted on the carrier, transmission shafts that are coupled to the sleeves, and ejection shafts which are securely connected to the stop plate.
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公开(公告)号：US09044749B2
公开(公告)日：2015-06-02
申请号：US13777225
申请日：2013-02-26
Applicant: Eppendorf AG
Inventor： Jens Wilmer
CPC classification number: B01L3/021 , B01L3/0224 , B01L2200/148
Abstract: A pipette with a rod-shaped casing, a seat, a displacement equipment, comprising a displacement chamber with a relocatable limit, a connection channel, a drive equipment for relocating the relocatable limit of the displacement chamber, coupled to the relocatable limit and having an axially relocatable lifting rod, an upper stop body, a lower stop body and a stop element on the circumference of the lifting rod for limiting the stroke of the lifting rod, an overstroke spring, a stationary screw element, and with a screw element that is relocatable in the casing, a toothing, running along a helical line with the same pitch as that of the thread of the relocatable screw element and having teeth on the upper edge of the relocatable screw element that are directed in the direction of the instantaneous axis of the relocatable screw element, a toothed driving wheel, and means for rotating the toothed driving wheel.
Abstract translation: 具有棒状壳体，座椅，移位设备的移液管，包括具有可重定位极限的移动室，连接通道，用于将位移室的可重定位极限重新定位的驱动设备，其耦合到可重定位极限并且具有 轴向可移动提升杆，上止动体，下止动体和止动元件，用于限制提升杆的行程，超行程弹簧，固定螺钉元件以及螺钉元件， 可重新定位在壳体中，齿形沿螺旋线延伸，具有与可重新定位的螺纹元件的螺纹相同的间距，并且在可再定位螺钉元件的上边缘上具有沿着瞬时轴线的方向 可重新定位的螺钉元件，齿形驱动轮和用于旋转带齿驱动轮的装置。
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公开(公告)号：US11554367B2
公开(公告)日：2023-01-17
申请号：US16735066
申请日：2020-01-06
Applicant: Eppendorf AG
Inventor： Martin Seippel , Matthias Kunsch , Burkhardt Reichmuth , Tobias David , Frank Horstmann , Jens Wilmer , Marc Wilth
Abstract: A pipette for use with a pipette tip includes a housing, a pin on the bottom end of the housing holding a pipette tip having first means for form-fit connection and a second means for form-fit connection which can be shoved onto the pin, constricting the pin, and/or expanding the tip before form-fit connection with the pin, a drive apparatus, at least one locking sleeve arranged concentric to the pin which is guided toward the pin in the housing, wherein the locking sleeve has a locked position having a pin in the inside constricted by shoving on a pipette tip, and/or is bordered on the outside by a tip shoved onto the pin, preventing a release from the pin, and the locking sleeve is upwardly displaceable out of the locked position so that the pin, and/or the tip is released, and the tip is removable from the pin.
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公开(公告)号：US20200215528A1
公开(公告)日：2020-07-09
申请号：US16735066
申请日：2020-01-06
Applicant: Eppendorf AG
Inventor： Martin Seippel , Matthias Kunsch , Burkhardt Reichmuth , Tobias David , Frank Horstmann , Jens Wilmer , Marc Wilth
Abstract: A pipette for use with a pipette tip includes a housing, a pin on the bottom end of the housing holding a pipette tip having first means for form-fit connection and a second means for form-fit connection which can be shoved onto the pin, constricting the pin, and/or expanding the tip before form-fit connection with the pin, a drive apparatus, at least one locking sleeve arranged concentric to the pin which is guided toward the pin in the housing, wherein the locking sleeve has a locked position having a pin in the inside constricted by shoving on a pipette tip, and/or is bordered on the outside by a tip shoved onto the pin, preventing a release from the pin, and the locking sleeve is upwardly displaceable out of the locked position so that the pin, and/or the tip is released, and the tip is removable from the pin.
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公开(公告)号：US20130233095A1
公开(公告)日：2013-09-12
申请号：US13777225
申请日：2013-02-26
Applicant: EPPENDORF AG
Inventor： Jens Wilmer
IPC: B01L3/02
CPC classification number: B01L3/021 , B01L3/0224 , B01L2200/148
Abstract: A pipette with a rod-shaped casing, a seat, a displacement equipment, comprising a displacement chamber with a relocatable limit, a connection channel, a drive equipment for relocating the relocatable limit of the displacement chamber, coupled to the relocatable limit and having an axially relocatable lifting rod, an upper stop body, a lower stop body and a stop element on the circumference of the lifting rod for limiting the stroke of the lifting rod, an overstroke spring, a stationary screw element, and with a screw element that is relocatable in the casing, a toothing, running along a helical line with the same pitch as that of the thread of the relocatable screw element and having teeth on the upper edge of the relocatable screw element that are directed in the direction of the instantaneous axis of the relocatable screw element, a toothed driving wheel, and means for rotating the toothed driving wheel.
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Patent Agency Ranking
公开(公告)号：US11980891B2
公开(公告)日：2024-05-14
申请号：US17722801
申请日：2022-04-18
Applicant: Eppendorf AG
Inventor： Jens Wilmer
CPC classification number: B01L9/543 , B01L3/0279 , G01N35/1016 , G01N35/1074 , G01N35/109 , B01L3/0227 , B01L2200/023 , B01L2200/0605 , B01L2200/0689 , B01L2300/0829
Abstract: A metering head for a metering machine having a carrier having parallel attachments for picking up pipette tips wherein each attachment has a tube having a supporting protrusion at the bottom end at least one sleeve which surrounds the tube and can be axially shifted on the tube, and at least one elastomer O-ring which surrounds the tube a pressure plate above the sleeves having a plurality of first holes through which the tubes extend, wherein the pressure plate can be shifted along the tubes from a release position into a clamping position where the sleeves are pressed, at the bottom ends, against the adjacent O-rings, and the O-rings are expanded to clamp pipette tips; and a first shifting apparatus connected to the pressure plate moving the pressure plate between the release position and clamping position.
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公开(公告)号：US20230110524A1
公开(公告)日：2023-04-13
申请号：US16974160
申请日：2019-04-23
Applicant: Eppendorf AG
Inventor： Burkhardt Reichmuth , Uwe Dunker , Jens Wilmer , Tobias David
IPC: B01L3/02
Abstract: A pipette comprises a pipette housing, a neck configured to clamp on a pipette tip, and a drive apparatus. The drive apparatus comprises a drive element configured to displace a displacement element to draw a liquid sample into the pipette tip and to eject the liquid sample from the pipette tip. A scanning apparatus comprises a scanning element positioned proximate the neck and configured to be displaced relative to the pipette housing by a collar of the pipette tip when clamping the pipette tip onto the neck. A mechanical display apparatus is coupled to the scanning apparatus and comprises a display. When the pipette tip is clamped to the neck the scanning apparatus is configured to adjust the display depending on a height of the collar of the pipette tip relative to the neck, and the neck is configured to accommodate different collar heights.
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公开(公告)号：US11305292B2
公开(公告)日：2022-04-19
申请号：US16309042
申请日：2017-06-29
Applicant: Eppendorf AG
Inventor： Jens Wilmer
Abstract: A metering head for a metering machine having a carrier having parallel attachments for picking up pipette tips, wherein each attachment has: a tube having a supporting protrusion at the bottom end, at least one sleeve which surrounds the tube and can be axially shifted on the tube, and at least one elastomer O-ring which surrounds the tube, a pressure plate above the sleeves having a plurality of first holes through which the tubes extend, wherein the pressure plate can be shifted along the tubes from a release position into a clamping position where the sleeves are pressed, at the bottom ends, against the adjacent O-rings, and the O-rings are expanded to clamp pipette tips; and a first shifting apparatus connected to the pressure plate moving the pressure plate between the release position and clamping position.
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9.发明申请公开(公告)号：US20190314808A1
公开(公告)日：2019-10-17
申请号：US16309037
申请日：2017-05-24
Applicant: Eppendorf AG
Inventor： Jens Wilmer
Abstract: A metering head comprising: a carrier having parallel attachments, a stop plate having first holes through which the attachments extend, each attachment having: a tube with a projecting supporting protrusion, a sleeve with a tapering at the bottom end, an elastomer O-ring that encloses the tube, and the sleeves can be shifted between a release position and a clamping position; in the clamping position, the sleeves with the taperings are pressed into the O-rings and expand them, a first shifting apparatus shifting the sleeves between the release position and the clamping position, a second displacement apparatus shifting the stop plate between a stop position and an ejection position, wherein the second shifting apparatus has rocker arms pivotably mounted on the carrier, transmission shafts that are coupled to the sleeves, and ejection shafts which are securely connected to the stop plate.
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10.发明申请公开(公告)号：US20190255533A1
公开(公告)日：2019-08-22
申请号：US16309042
申请日：2017-06-29
Applicant: Eppendorf AG
Inventor： Jens Wilmer
Abstract: A metering head for a metering machine having a carrier having parallel attachments for picking up pipette tips, wherein each attachment has: a tube having a supporting protrusion at the bottom end, at least one sleeve which surrounds the tube and can be axially shifted on the tube, and at least one elastomer O-ring which surrounds the tube, a pressure plate above the sleeves having a plurality of first holes through which the tubes extend, wherein the pressure plate can be shifted along the tubes from a release position into a clamping position where the sleeves are pressed, at the bottom ends, against the adjacent O-rings, and the O-rings are expanded to clamp pipette tips; and a first shifting apparatus connected to the pressure plate moving the pressure plate between the release position and clamping position.
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