| Patent Number |
Title Of Patent |
Date Issued |
| D375798 |
Pipette |
November 19, 1996 |
|
| 6249345 |
Cuvette |
June 19, 2001 |
| A cuvette for the measurement of the absorption of irradiation in liquid samples which at least in the regions of the windows is of a transparent plastic with an inner space which is formed in an essentially box-shaped upper part with an upper opening for filling and removing sample flui |
| 6199435 |
Pipetting system with a pipetting device and at least one pipette tip releasably fastened theret |
March 13, 2001 |
| A pipetting system with a pipetting device and at least one pipette tip releasably fastenable thereon, at least one fastening element on the pipetting device, on which the pipette tip is fastened, an ejection means on the pipetting device, which has an axially movable ejection element fo |
| 6159199 |
Device for the manipulation of cytotechnical instruments |
December 12, 2000 |
| A device for handling instruments used in technical cytological examinations has a holder base with at least two separate and moveable holders each carrying one instrument and each being coupled with a drive for switching the holders between two defined positions, one of which is a w |
| 6098819 |
Magazine for pipette tips |
August 8, 2000 |
| A magazine for pipette tip-shaped articles including a plurality of plates for holding the pipette tip-shaped articles and each having a plurality of bores for receiving the pipette tip-shaped articles in their entirety, a plurality of racks stacked over one another and adapted to each r |
| 6008038 |
Method and a circuit arrangement for the electropermeation of living cells |
December 28, 1999 |
| A method for the electropermeation of living cells between at least two electrodes over a predetermined interval with an electrical potential or a current, characterised by the following features:a voltage or current source which is not exhaustable over the interval is applied to the ele |
| 5971908 |
Laboratory centrifuge with electric motor |
October 26, 1999 |
| A laboratory centrifuge has a centrifuge rotor supported on a stator and rotatable on a bearing about an axis of rotation. An electric motor drives the rotor and has pole pieces at a stationary part mounted on the stator and a rotatable part directly attached to the rotor, the stationary |
| 5916525 |
Closure vessel assembly |
June 29, 1999 |
| A closure vessel assembly for use in laboratory work within a range of temperature from -196.degree. C. to 100.degree. C. above zero includes a vessel made of a plastic material and having a wall defining the vessel mouth, and a closure for closing the vessel. The closure has an annular |
| 5863791 |
Cover receptacle assembly |
January 26, 1999 |
| A cover receptacle assembly of plastics for use in laboratories, in particular for the polymerase chain reaction technique, comprising a tubular receptacle having a receptacle botton at one end and a receptacle opening at an opposite end, a cover for sealingly closing said receptacle |
| 5844686 |
System for pipetting and photometrically evaluating samples |
December 1, 1998 |
| Hand apparatus for pipetting and photometrically evaluating samples which comprise a pipetting means, an integrated photometer and a replaceable pipette tip connected to said pipetting means, said pipette tip being defined as a cell and provided within the optical path of the photometer |
| 5665208 |
Method and apparatus for the quantitative enrichment of volatile compounds by capillary distilla |
September 9, 1997 |
| A quantitative enrichment of volatile compounds from substances of the macro- to submicro field in a short time is realized by capillary distillation in a system which includes an evaporator vessel, on the bottom of which one or more filter plates are provided and which is connected |
| 5620660 |
Pipette system |
April 15, 1997 |
| A manually pipette system including a replacement syringe having a mounting part and a plunger, a manual pipette having a space for receiving the syringe mounting part and a receiving body having a cavity for receiving the syringe plunger, with the mounting part and the plunger being mov |
| 5591408 |
Repetition pipette |
January 7, 1997 |
| The invention relates to a repetition pipette including a syringe receiving section for a mounting portion of a syringe, said pipette comprising a receiving member having a piston receiving portion for the mounting portion of a syringe piston, piston returning means for moving said r |
| 5573729 |
Repetition pipette |
November 12, 1996 |
| A repetition pipette including a syringe receiving section for the mounting portion of a syringe, a receiving member having a piston receiving portion for the mounting portion of a syringe piston, piston returning means for moving said receiving member away from said syringe receiving po |
| 5538493 |
Centrifugation system with a rotatable multi-element carrier |
July 23, 1996 |
| A system for centrifugation of samples includes at least one carrier, which is provided with a plurality of elements connected with each other by joints and having each an uptake for receiving a sample to be centrifuged, and a rotor for supporting the carrier, with the elements being arr |
| 5538493 |
Centrifugation system with a rotatable multi-element carrier |
July 23, 1996 |
| A system for centrifugation of samples includes at least one carrier, which is provided with a plurality of elements connected with each other by joints and having each an uptake for receiving a sample to be centrifuged, and a rotor for supporting the carrier, with the elements being arr |
| 5531131 |
Device for adjusting correction factor of a plunger lift pipet |
July 2, 1996 |
| A plunger lift pipet for a slip-on pipet tip which includes adjusting mechanism for changing the travel of the plunger, display mechanism for the liquid volume pipetted each time, disengageable coupling mechanism between the adjusting mechanism and the display mechanism for changing a |
| 5481900 |
Pipette system |
January 9, 1996 |
| The present invention relates to a method for defining an error compensation for the difference between a desired quantity of liquid and the quantity of liquid actually drawn into a disposable pipette tip mounted on a plunger-operated pipette, comprising adjusting arrangement (5,6,36 |
| 5280975 |
Locking mechanism for a cover of a centrifuge |
January 25, 1994 |
| A mechanism for locking a cover to a housing of medium and high speed laboratory centrifuges. The locking mechanism includes an axially moveable locking member which has at least one locking portion adapted to be moved in locking engagement with a locking hole of the cover. The axially |
| 5201348 |
Evacuating apparatus for a microtitration diaphragm plate |
April 13, 1993 |
| An evacuating apparatus for applying suction to the underside of a microtitration diaphragm plate including a plurality of diaphragm receptacles each having an open top and a diaphragm bottom, the evacuating apparatus including a housing defining an evacuation chamber having an apert |
| 4999164 |
Pipetting device comprising a retaining cone for holding a slip-on pipette tip and pipette tip f |
March 12, 1991 |
| A pipetting device comprises a retaining cone for holding a slip-on pipette tip and a piston chamber, which communicates with a passage of the retaining cone and contains a reciprocable piston, which acts on the pipette tip that has been fitted on the retaining cone. A filter is prov |
| 4982614 |
Process of taking liquid from large-volume, deep vessels by means of sucking vessels and auxilia |
January 8, 1991 |
| For the taking of liquid from large-volume, deep vessels by means of sucking vessels having short suction elements, a metered stand-by volume of liquid, which is accessible from above, is sucked from a volume of liquid of changing depth in the deep vessel and a defined sample of liquid |
