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:
Nov. 06, 1990
Filed:
Apr. 29, 1988
John R Wells, Galveston, TX (US);
Robert Caveney, Los Gatos, CA (US);
Caveo Scientific Instruments, Inc., Sunnyvale, CA (US);
Abstract
An improved method for pipetting multiple aliquots of liquid employs a preliminary back sip prior the first expression of an aliquot of the liquid; an adjustable back sip between each expression of aliquots of liquid; and a blow out volume of air, aspirated into the pipette prior to the initial aspiration of liquid, for blowing out residual liquid after the expression of the last aliquot of liquid. The improved method for pipetting liquid may be performed on an improve apparatus which includes a microprocessor having within its memory a schedule or correlation for the optimal back sip to execute after the expression of any given aliquot. The microprocessor may also include means for driving the apparatus so as to perform the preliminary back sip and the aspiration of the blow out volume.