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:
Jun. 29, 1993
Filed:
May. 17, 1991
Jim Gautsch, Solama Beach, CA (US);
BIO 101, La Jolla, CA (US);
Abstract
An improved 'reference' pipet tip supports a number of volume scale ranges on its external body--preferably a scale for each of small volumes 0.5 microliters through 5 microliters, medium volumes 5 microliters to 50 microliters, and large volumes of 50, 100, and 150 microliters--because the geometry of its interior reservoir is non-uniform. In particular, the pipet tip's interior reservoir increases in diameter, and in contained volume, at a first rate, and in response to a first conical angle of rotation, at its distal end, tip, region. The interior reservoir increases at a different, larger, rate at its proximal end region, which proximal end region is connected to a pipettor. Fluid volumes in a broad range from. 0.5 microliters to 150 microliters are typically measurable at accuracies of better than 10%.