The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 27, 1982
Filed:
Mar. 27, 1981
Vladimir J Drbal, Hollywood Hills, FL (US);
Guenter Ginsberg, Miami, FL (US);
Bruce J Hodgins, Hialeah, FL (US);
John A Richardson, Shirley, MA (US);
Ted W Britton, Opa Locka, FL (US);
Richard M Grimm, Zolfo Springs, FL (US);
Ernesto Bello, Miami Springs, FL (US);
Rodolfo R Rodriguez, Miami, FL (US);
Ivan K Saltz, Cooper City, FL (US);
Coulter Electronics, Inc., Hialeah, FL (US);
Abstract
A fluid transfer mechanism for rapidly and accurately picking up or aspirating a fluid quantity or aliquot in one position, moving it to a second position and dispensing the aspirated aliquot. The mechanism includes an arm mounted on a high helix shaft on one end and driven up and down the shaft by a first motor and rotated around the shaft by a second motor. The arm includes at a second end a fluid transfer probe which is moved into and out of the fluids to aspirate and dispense the fluids in precise angular locations. The arm may be accelerated and deaccelerated as it is rotated to avoid vibrations and spilling of the fluid from the probe. The probe may include a level sensing structure for sensing when the probe has contacted a fluid surface. The probe also may be coupled to an oscillator to oscillate the probe in a vessel into which the fluid has been dispensed to mix the fluids therein.