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. 24, 1980
Filed:
Jul. 21, 1978
Albert A Faulkner, Conshohocken, PA (US);
SmithKline Corporation, Philadelphia, PA (US);
Abstract
The invention is for a method for analyzing a stream of liquid such as blood and apparatus for carrying out the method. While it is known to present a moving column of liquid in a viewing cell, control of the circumference of the column to control its field size and lighting the column from the end opposite the viewing end has not been accomplished. The invention involves the method of passing a first liquid in a column in a confined space to a transparent panel, introducing one or more liquids of different colors to form a hollow column exterior of the first column, exhausting the liquids from adjacent the panel, directing light upwardly at the lower ends and through the columns and varying the pressure of one or more of the liquids to vary the circumference and speed of the first column. Apparatus is provided to carry out the method.