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. 13, 1976
Filed:
Jan. 24, 1975
Charles H Chervenka, Sunnyvale, CA (US);
Beckman Instruments, Inc., Fullerton, CA (US);
Abstract
A tool is provided for the angular alignment of cells and counterweights in centrifuge rotors having diametrically opposite cylindrical chambers for the reception of such cells and counterweights, the rotor and chambers having parallel axes, each cell having a window holder with a straight sided aperture and each counterweight having a center hole and an alignment hole spaced radially therefrom. The tool comprises an arm which extends along a diameter of the rotor when the tool is in position for use. At a first end of the diametrically extending arm there is a tool arm perpendicular to the diametrically extending arm and extending in each direction from the diametrically extending arm. At the second end of the diametrically extending arm there are a cell guide and a counterweight guide, each extending from the diametrically extending arm at right angles thereto. The tool arm has one end formed with an oblong cross section and having tapering sides for fitting into the straight sided window holder aperture of a cell in order to align the cell angularly within the chamber receiving it in the centrifuge rotor by causing the cell guide arm to slip into the rotor chamber diametrically opposite the cell being aligned. The second end of the tool arm is formed with a circular bar adapted to fit into the center hole of the counterweight and a parallel pin spaced therefrom is adapted to fit in the alignment hole of the counterweight for enabling the counterweight to be aligned angularly in the chamber for receiving it by causing the counterweight guide to slip into the centrifuge chamber diametrically opposite the chamber for the counterweight being aligned.