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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：US20220001377A1
公开(公告)日：2022-01-06
申请号：US17366146
申请日：2021-07-02
Applicant: Eppendorf AG
Inventor： Marc Wilth , Holger Link
IPC: B01L3/02
Abstract: A multichannel pipetting head comprises a plunger actuator comprising at least one groove with an upper border, and a lower border. A plurality of plunger-cylinder units, wherein each plunger-cylinder unit comprises a cylinder and a plunger comprising a plunger head. The plunger head comprises a projecting upper abutment region adjoining the upper border, a projecting lower abutment region adjoining the lower border and laterally offset relative to the projecting upper abutment region, a plurality of guides. Each of the cylinders is coupled to a neck and held on each of the plurality of guides. During lateral movement of the plurality of guides, the plunger head is configured to tilt in the groove and to be held with the upper abutment region abutting the upper border and with the lower abutment region abutting the lower border of the groove due to restoring forces that occur during tilting in the plunger-cylinder units.
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公开(公告)号：US20180318825A1
公开(公告)日：2018-11-08
申请号：US15972806
申请日：2018-05-07
Applicant: Eppendorf AG
Inventor： Burkhardt Reichmuth , Marc Wilth , Jörg Sattler
IPC: B01L3/02
CPC classification number: B01L3/0227 , B01L3/0289 , F16H25/24 , F16H2025/2481 , F16H2025/249
Abstract: An electronic dosing drive comprising a support structure, a threaded spindle with an external thread for driving a plunger, at least one first guide element is firmly connected, and is guided parallel to the threaded spindle on a second guide element, a spindle nut having an internal thread is engaged with the external thread of the threaded spindle, an electric drive motor having a motor shaft is coupled with the spindle nut and is attached to the support structure, an electric control apparatus is connected to the electric drive motor, where the external thread of the threaded spindle has multiple threaded areas that are separated from each other by first flattenings on their circumference extending in the longitudinal direction, and the first flattenings have guide areas that abut the core diameter of the internal thread of the spindle nut.
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公开(公告)号：US11951471B2
公开(公告)日：2024-04-09
申请号：US17354193
申请日：2021-06-22
Applicant: Eppendorf AG
Inventor： Marc Wilth , Dana Tuchscherer , Matthias Kunsch , Florian Tesch , Burghardt Reichmuth
CPC classification number: B01L3/0227 , B01L3/0282 , G01N35/1011 , B01L2200/0605 , B01L2200/087 , B01L2400/0478
Abstract: A pipette for use with a pipette tip or syringe including a piston positioned within a cylinder comprises a pipette housing extending between an upper end and a lower end. Two parallel rods are positioned in the pipette housing, wherein one of the two parallel rods is coupled to a lifting rod. An operating element is configured to protrude outwardly from the pipette housing and be displaced relative to the pipette housing. A gear mechanism is arranged in the pipette housing and comprises a drive comprising a moveable input member and configured to be driven by the operating element, and an output comprising at least one moveable output member and configured to drive the two parallel rods. Successive displacements of the input member by the operating element are configured to alternately displace one of the two parallel rods and then another of the two parallel rods by the output member.
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Patent Agency Ranking
公开(公告)号：US20170151556A1
公开(公告)日：2017-06-01
申请号：US15322552
申请日：2015-06-23
Applicant: Eppendorf AG
Inventor： Marc Wilth , Burkhardt Reichmuth , Jörg Sattler
IPC: B01L3/02
Abstract: A pipette for actuating a syringe including a strip-shaped housing with first and second receptacles for inserting fastening sections. First and second releasable holding mechanism for holding the fastening sections. First and second displacing mechanisms to displace a receiving body in the housing from the receptacles. A toothed rack and a pawl are connected to an actuation rack. A cover has a coupling element and longitudinal slot and spring.
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公开(公告)号：US12290805B2
公开(公告)日：2025-05-06
申请号：US17366146
申请日：2021-07-02
Applicant: Eppendorf AG
Inventor： Marc Wilth , Holger Link
IPC: B01L3/02
Abstract: A multichannel pipetting head comprises a plunger actuator comprising at least one groove with an upper border, and a lower border. A plurality of plunger-cylinder units, wherein each plunger-cylinder unit comprises a cylinder and a plunger comprising a plunger head. The plunger head comprises a projecting upper abutment region adjoining the upper border, a projecting lower abutment region adjoining the lower border and laterally offset relative to the projecting upper abutment region, a plurality of guides. Each of the cylinders is coupled to a neck and held on each of the plurality of guides. During lateral movement of the plurality of guides, the plunger head is configured to tilt in the groove and to be held with the upper abutment region abutting the upper border and with the lower abutment region abutting the lower border of the groove due to restoring forces that occur during tilting in the plunger-cylinder units.
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公开(公告)号：US11280389B2
公开(公告)日：2022-03-22
申请号：US16610983
申请日：2018-05-02
Applicant: Eppendorf AG
Inventor： Burkhardt Reichmuth , Marc Wilth , Jörg Sattler
Abstract: A spindle drive comprising a threaded spindle with an external thread, a spindle nut with an internal thread that is in engagement with the external thread of the threaded spindle, characterized in that the external thread of the threaded spindle has multiple threaded areas that are separated from each other by first flattenings on their circumference extending in the longitudinal direction, and the first flattenings have guide areas that abut the core diameter of the internal thread of the spindle nut.
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公开(公告)号：US10758899B2
公开(公告)日：2020-09-01
申请号：US15972806
申请日：2018-05-07
Applicant: Eppendorf AG
Inventor： Burkhardt Reichmuth , Marc Wilth , Jörg Sattler
Abstract: An electronic dosing drive comprising a support structure, a threaded spindle with an external thread for driving a plunger, at least one first guide element is firmly connected, and is guided parallel to the threaded spindle on a second guide element, a spindle nut having an internal thread is engaged with the external thread of the threaded spindle, an electric drive motor having a motor shaft is coupled with the spindle nut and is attached to the support structure, an electric control apparatus is connected to the electric drive motor, where the external thread of the threaded spindle has multiple threaded areas that are separated from each other by first flattenings on their circumference extending in the longitudinal direction, and the first flattenings have guide areas that abut the core diameter of the internal thread of the spindle nut.
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公开(公告)号：US20200072329A1
公开(公告)日：2020-03-05
申请号：US16610983
申请日：2018-05-02
Applicant: Eppendorf AG
Inventor： Burkhardt Reichmuth , Marc Wilth , Jörg Sattler
Abstract: A spindle drive comprising a threaded spindle with an external thread, a spindle nut with an internal thread that is in engagement with the external thread of the threaded spindle, characterized in that the external thread of the threaded spindle has multiple threaded areas that are separated from each other by first flattenings on their circumference extending in the longitudinal direction, and the first flattenings have guide areas that abut the core diameter of the internal thread of the spindle nut.
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