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:
Feb. 09, 1982
Filed:
Aug. 27, 1980
Bernard Stein, Andover, MA (US);
Richard A Granoff, Chester, NH (US);
Instrumentation Laboratory Inc., Lexington, MA (US);
Abstract
A multicuvette rotor assembly for use in a clinical chemistry analyzer of the centrifugal type includes a body member that defines a circumferential array of spaced radially extending recesses, with a divider member in each recess to define a first chamber and a second chamber radial outward from said first chamber; and a ring member that has a mating reference surface seated on an annular reference surface of the body member, with the inner peripheral surface of the ring member located outwardly of the middle of the second chambers. A circumferential array of first optical windows is bonded to the ring member, the lower surface of each first optical window being parallel to the mating reference surface; and a circumferential array of second optical windows is bonded to the base of the body member in alignment with the first optical windows such that each pair of opposed aligned surfaces of corresponding first and second optical windows are parallel to one another and define an optical path of precise and stable path length. A cover member has sealing surfaces that mate with the edges of the recesses of the base member and the inner peripheral lip of the ring member to provide a continuous seal of the recesses to retain reagent and sample material to be analyzed within the recesses.