| Patent Number |
Title Of Patent |
Date Issued |
| D262319 |
Microdispenser |
December 15, 1981 |
|
| D242729 |
Automatic pipette or the like |
December 14, 1976 |
|
| 7396512 |
Automatic precision non-contact open-loop fluid dispensing |
July 8, 2008 |
| A rugged, all-electronic fluid dispensing system for use with pipettes or in other contexts indirectly measures fluid flow by using a non-linear system model to correlate vacuum existing at the top of a column of suspended fluid. Non-contact operation is provided to eliminate the need |
| 7329104 |
Split-housing pipette pump |
February 12, 2008 |
| A diaphragm pump with a bi-component diaphragm pump housing. The housing has a top component and a bottom component that connect along first and second complimenting connection interfaces and form an interior pump chamber, an exterior pressure port, an exterior vacuum port, and fluid |
| 6997068 |
Foot-operated pipette dispenser |
February 14, 2006 |
| A pipette dispenser unit having a hand-held pipette dispenser having a pipette connector and a handle, a source of positive and negative air pressure in fluid connection with said pipette connector, and a foot-operated controller for regulating the flow of air between said air pressu |
| 6734026 |
Pipette gun and holster assembly |
May 11, 2004 |
| A pipette gun and holster apparatus having a remote source of positive and negative air pressure. The holster supports the pipette gun above a work table with the pipette connector oriented generally, vertically downwardly. The holster has a base which may be fastened to a vertical w |
| 6531098 |
Disposable preselected-volume, capillary pipette device having an integrally-formed bulbous end |
March 11, 2003 |
| The present invention relates to a disposable, preselected-volume, capillary pipette device for picking up and transferring a selected volume of a liquid sample such as blood. |
| 6309603 |
Microcentrifuge tube cap opening and closing apparatus and method |
October 30, 2001 |
| A single-hand apparatus for opening and closing the cap of a microcentrifuge tube. The apparatus comprises an elongate base having means on one end for mounting the base on a laboratory ring stand and means on the other end of the base for allowing a technician to hold the microcentr |
| 5916814 |
Presealed integral hematocrit test assembly and method |
June 29, 1999 |
| A presealed integral hematocrit test assembly includes a holder, a bore molded into the holder, and a blood sample tube mounted on the holder adapted to receive a sample of blood by capillary action, whereby the blood sample tube is filled with blood from its inlet end by capillary a |
| 5900091 |
Process for making a safety pipet tube |
May 4, 1999 |
| A disposable one-time use, inexpensive, capillary-action safety micro-pipet for obtaining a sample of blood or other liquid comprises a transparent glass tube which is capable of drawing blood or other liquid into the tube by capillary action, and a resilient sheet, with an adhesive laye |
| 5616871 |
Pipet gun assembly |
April 1, 1997 |
| A pipet gun assembly with a handle and a barrel extending from the handle and a pipet stand, wherein a pipet tube connected to the barrel is supported upright by the base of the handle and the stand connected to the barrel so that the pipet tube does not touch anything and can remain |
| 5294405 |
Adjustable valve for pipette gun |
March 15, 1994 |
| A valve for use in a pipette gun for selectively providing different ranges of flow rates through a pipette cooperating with the pipette gun. The valve has a predetermined number of discrete settings, each of which provides a range of fluid flow rates between zero and a different maximum |
| 5214968 |
Pipet filling and discharge device |
June 1, 1993 |
| A pipette gun in which the pump mechanism for creating suction to draw liquids into the pipette and for creating pressure for forcing the liquid out of the pipette includes a generally oval flexible diaphragm. |
| 5173266 |
Safety pipet |
December 22, 1992 |
| A disposable one-time use, inexpensive, capillary-action safety micro-pipet for obtaining a sample of blood or other liquid comprises a transparent glass tube which is capable of drawing blood or other liquid into the tube by capillary action, and a resilient sheet, with an adhesive laye |
| 5104625 |
Pipetter device |
April 14, 1992 |
| A pipetter for picking up, holding and then ejecting a pipet tube, without touching the pipet tube with the hands, which includes a housing, a collet which comprises fingers mounted at the forward end of the housing, and an outer or holding sleeve which closes the fingers when the outer |
| 5090255 |
Programmable pipet apparatus |
February 25, 1992 |
| A method of automatically filling a pipet tube with a desired fill of liquid and automatically dispensing desired aliquots of liquid successively into wells in a tray or the like, comprises the steps of providing a syringe having a piston in a cylinder with the top of the cylinder co |
| 5059398 |
Disposable preselected-volume capillary pipet device |
October 22, 1991 |
| A disposable preselected-volume capillary pipet device comprises a capillary tube having an admitting emitting end for liquids and a vent end for passing air from the tube as the liquid is being drawn into the tube by capillary action, a port at the admitting-emitting end for admitting |
| 5043106 |
Method of casting optical mirrors |
August 27, 1991 |
| A process for making optical mirrors which includes making a rough plaster casting to about the desired shape of the mirror, with the casting having a rough surface, and then applying successive thin layers of polyester resin to the surface of the rough casting to form a finished casting |
| 4662545 |
Disposable capillary tube device |
May 5, 1987 |
| A disposable capillary tube device has a support member to which a capillary tube is secured with one end of the tube extending beyond the support member for the pickup of a liquid. A plunger is releasably mounted for axial movement on the support member with space for the passage of air |
| 4624147 |
Pipet gun for drawing liquid into and expelling it from a pipet |
November 25, 1986 |
| A pipet gun for drawing liquid into and expelling it from a pipet comprises a housing which includes a hand grip portion and a barrel portion with a pipet-supporting portion connected to the barrel portion, conduits in the housing adapted to connect an air pressure source and a vacuum so |
| 4461328 |
Pipette device |
July 24, 1984 |
| A pipette device comprises one or more pipette tubes. Hydrophobic filter paper secured to each tube limits the upward movement of an aqueous liquid in each tube to provide for a predetermined amount of liquid in each tube. The device can be adapted to be connected to a manifold for alter |
| 4063662 |
Calibrating means for a microdispenser |
December 20, 1977 |
| Calibrating means for a microdispenser of the type wherein a plunger is operable to automatically draw a fixed volume of fluid into, and expel the liquid from, a precision capillary tube. The calibrating means includes a graduation marking on the capillary tube indicating the precise, |
| 3963061 |
Apparatus for drawing liquids into, and expelling liquids from a pipette |
June 15, 1976 |
| Apparatus for drawing liquids into, and expelling liquids from, a pipette including a housing comprising a hand-held pistol grip to which is connected a pipette-supporting portion. Valve means mounted on the pistol grip beneath two fingers of the user permit selective application of |
