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7563409 |
Method of attaching a pipette tip and an apparatus for such method
The object of this invention is a method for attaching a pipette tip and an apparatus for such method. The method comprises the following steps: opening the interlocking which attaches the...
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7357899 |
Reagent addition system and method
A piston coupling for a micro-liter range liquid dispensing system for connecting a piston to a piston drive shaft generally includes a U-shaped body portion having a U-shaped arm and an annular...
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7284454 |
Hand held pipette
A hand-held pipette includes a piston driven by an actuator assembly contained within a housing having first and second mutually spaced non-adjustable stops. The actuator assembly is subdivided...
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7204163 |
Mechanical piston pipette
The mechanical piston pipette comprises a pipette body, a piston/cylinder assembly, the cylinder being arranged so as to be able to be equipped with a replaceable tip, and a tip ejector device,...
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7175813 |
Volume adjustable manual pipette with quick set volume adjustment
A volume adjustable pipette, comprising a plunger mounted for movement in a housing to and from a stop to aspirate a fluid into and dispense the fluid from a tip extending from the housing. An...
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7105130 |
Adjustable pipette
A pipette includes a housing defining a suction chamber. A piston is configured to move in the suction chamber. A first retainer mechanism includes a first threading configured to limit a motion of...
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6994828 |
Liquid sample pipette with tip ejecting mechanism
The sampling pipette comprises a body; an arm movable relative to the body parallel to a longitudinal direction of the pipette in order to eject a cone fixed to the body; and a button for...
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6967004 |
Pipette with improved pipette tip and mounting shaft
A pipette tip and mounting shaft combination in an air displacement pipette, the combination comprising a pipette tip mounting shaft having a radially stepped exterior comprising adjacent...
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6959616 |
Pipette provided with sampled volume adjusting means
The sampling pipette includes means for adjusting the volume of liquid to be taken. It includes a locking element that is movable between an inactive position in which it makes the adjustment means...
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6931948 |
Multiple pipette and method of using the same
A multiple pipette (X) comprising a first pipette ( 1 ) and a second pipette ( 2 ), wherein the first pipette ( 1 ) allows a liquid stored in a liquid storing section ( 17 a ) to be delivered a...
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6923938 |
Hand-held pipettor
A hand-held pipettor comprising a piston received in one end of a cylinder, a pipettor tip removably secured to an opposite end of said cylinder, means for reciprocating said piston through a...
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6910395 |
Pipetting device
A pipetting device for detachably mountable pipette tips, comprising a moving device, a piston movable by the moving device in a cylinder to displace a column of air, an attachment stem for...
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6833114 |
Pipette with tip ejector
The invention relates to a pipette for transferring liquids, comprising the following: at least one piston-cylinder arrangement ( 3, 4 ), in which the cylinder ( 4 ) is arranged in such a way that...
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6740295 |
Method and device for detecting the type of replaceable piston-cylinder units for pipetting or dosing apparatus
A method for detecting the type of replaceable piston-cylinder unit mounted in pipetting or dosing apparatus with the help of a code marking on the piston rod head, so as to eliminate the influence...
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6645433 |
Ergonomic return springless manual air displacement pipette
An ergonomic, manually precisely controllable return springless air displacement pipette relying upon the friction of a piston seal to maintain a plunger unit of the pipette in any axial location...
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6605257 |
Micro array manufacturing apparatus
A present micro array manufacturing apparatus includes a substrate placement portion 11 on which a plurality of substrates can be arranged, a tighter plate 12 for storing a solution including a...
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6484556 |
Thin film detection during fluid aspiration
The accurate determination of the presence of a fluid in a container is determined by assessing the difference in various pressure readings relative to a threshold value. The method distinguishes...
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6440370 |
Repeater pipette with a hydraulic operating device
A pipetting system including a syringe ( 2 ), a working piston ( 5 ) connectable with the syringe piston ( 24 ) and extending into a working chamber ( 3 ), an actuating piston ( 7 ) extending into...
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6428750 |
Volume adjustable manual pipette with quick set volume adjustment
A volume adjustable manual pipette having a hand-holdable housing supporting (i) an electronic digital display and associated position sensing and control circuitry, (ii) a plunger unit and (iii) a...
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6365110 |
Blowout springless manual air displacement pipette with mechanical assist for aiding in locating and maintaining pipette plunger at a home position
A blowout springless manual air displacement pipette including a mechanical assist for generating a mechanical force opposing a return spring force on a plunger unit to aid a pipette user in...
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6352673 |
Ergonomic return springless manual air displacement pipette
An ergonomic, manually precisely controllable return springless air displacement pipette relying on the friction of a piston seal to maintain a plunger unit of the pipette in any axial location...
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6299841 |
Bilaterally symmetrical battery powered microprocessor controlled lightweight hand-holdable electronic pipette
A bilaterally symmetrical lightweight hand holdable battery powered microprocessor controlled electronic pipette including an axially elongated hollow housing having a vertically extending...
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6295880 |
Adjustable pipette
An adjustable pipette includes a body containing a plunger assembly including a thumb button that is axially moved in alternating relatively shorter sample aspirating and relatively longer...
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6258324 |
Pipette dispensing block
A pipette dispensing block has an improved piston seal and lift plate engagement/disengagement means. In a pipette dispensing block where a piston is used to create a pressure differential to...
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6254832 |
Battery powered microprocessor controlled hand portable electronic pipette
A battery powered, microprocessor controlled portable electronic pipette, comprising a hand holdable housing supporting a battery, a linear actuator for driving a plunger lengthwise in a cylinder...
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6170343 |
Electronically monitored mechanical pipette
The present invention relates to an electrically monitored mechanical pipette which includes a microswitch in its volume delivery adjustment mechanism which operates to signal the electrical volume...
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6158292 |
Pipette
A pipette for transferring liquid samples includes a body having a handle and a base. A piston assembly is axially movable in the body. A movable lower stop is placed in the path of the piston...
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5998218 |
Calibration system for an electronically monitored mechanical pipette
The present invention relates to a calibration system for an electronically monitored mechanical pipette. The calibration system is used to calibrate an electronic volume monitoring system which...
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5983733 |
Manual pipette
A manual pipette having a cushioned hand grip area and a tip ejector. The ejector is located strategically so that an operator can easily manipulate either the ejector or a pipette fluid plunger...
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5892161 |
Transducer assembly for an electronically monitored mechanical pipette
The present invention relates to an electronically monitored mechanical pipette which includes a transducer assembly for monitoring the rotational movement of a volume delivery adjustment mechanism...
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5879633 |
Ratchet pipette
The object of the invention is a ratchet wheel pipette having a body and in it a cylinder (3) and a piston (12) and a filling and dispensing arrangement to draw liquid into the cylinder and to...
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5849248 |
Adjustable volume pipette with improved volume adjustment lock mechanism
A volume adjustable pipette for aspirating and dispensing precise volumes of liquid comprising an elongated hollow hand-holdable housing supporting a plunger for turning and for axial movement...
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5804144 |
Piston pipette
A piston pipette having pulling equipment for moving a piston upward and pushing equipment for moving the piston downward. The pushing equipment has a movable gripping device (5), which when moving...
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5792424 |
Manual pipette with delayed-action home position latch
A manual pipette including a delayed action home position latch for engaging only after the plunger unit of the pipette has moved downward through its home position to thereafter releasably connect...
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5770158 |
Capillary syringe
A disposable, vented capillary draw device is described that is also capable of use for the syringe pressurized dispensing of liquid benignly drawn. The system includes a vented capillary...
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5747709 |
Repetitive pipette
A repetitive pipette wherein a rack shaft (23) vertically and movably provided in a pipette body (1) is connected to a plunger (43) of a syringe unit (41), and a vertically movable and pivotable...
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5726363 |
Liquid sampler
A sampling device having sampling receptacles with specific volumes are attached on the liquid sampler's receiving area for the purpose of taking unit dose samples of a liquid. The liquid sampler...
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5672320 |
Repeating pipet having a plunger advance mechanism
An advancing mechanism is provided for movement of a pipet plunger in a repeating pipet. The advancing mechanism includes a rack communicating with the pipet plunger, a pawl pretensioned against...
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5620661 |
Pipette system
A pipette system with a syringe comprising a syringe flange and a syringe plunger, and with a pipette which in a pipette body comprises an accommodation for the syringe flange and in an...
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5591408 |
Repetition pipette
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...
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5531131 |
Device for adjusting correction factor of a plunger lift pipet
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...
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5505097 |
Pipette
A pipette, comprising: a cylinder (1) with liquid passage (3), a plunger (4), and a plunger operating assembly (5) for moving the plunger in the cylinder; the operating assembly comprising a body...
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5499545 |
Pipetting device and method therefore
Measurement accuracy is improved by eliminating the influence of changes in the atmospheric and internal pressures on the quantity of a liquid absorbed or discharged. A pipetting device inducts a...
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5481900 |
Pipette system
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...
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5413006 |
Pipette for sampling and dispensing adjustable volumes of liquids
A pipette body extends along a longitudinal axis and a piston mounted in sliding fashion along this axis inside the said pipette body so as to define a chamber of variable volume emerging at a...
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5389341 |
Knob pipette
A motor-driven knob pipette, wherein the displacement of a slidably transferable knob controls the movement of a piston by means of an electronic control system. The pipette is light to use, and...
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5364595 |
Pipette device constructed to prevent contamination by aerosols or overpipetting
In a pipette device, a suction device applies suction to a pipette tip to draw liquid into the pipette tip. A porous plastic plug is mounted in the pipette tip to prevent contamination of the...
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5364596 |
Manual pipette with plunger velocity governor, home position latch and trigger release
A manual pipette including user controllable latch and trigger mechanisms for releasably locking the plunger of the pipette in a "home" position ready for immersion of the pipette tip in a fluid to...
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5355738 |
Positive-displacement pipette
A positive-displacement pipette is provided comprising a longitudinally extending body portion having a bore passing therethrough, a hand grip portion disposed at one end of the body, and a tip...
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5347878 |
Pipette with locking adjustment and method for using the same
A pipette for emptying liquid and filling with liquid includes a body housing an adjustment mechanism disposed to limit movement of the plunger, the adjustment mechanism being locked with a locking...
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