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:
Aug. 16, 1977
Filed:
Nov. 21, 1975
Vladimir J Drbal, Miramar, FL (US);
Coulter Electronics, Inc., Hialeah, FL (US);
Abstract
A diluting apparatus or pump having first and second chambers coaxially formed in a single pivotally mounted block. A first piston is reciprocally disposed in the first chamber and a second piston is coaxially mounted on the first piston and reciprocally disposed in the second chamber, substantially eliminating any transverse thrusts on the pistons. A spool valve is pivotally mounted on an eccentric pin mounted on a rotating crank to drive the pistons. The valve reciprocates within a valve body to couple the first chamber to a fluid supply line on a return stroke and to couple the first chamber to an output line on a delivery stroke. The second chamber is coupled to the output line on both strokes to draw in a second fluid on the return stroke and discharge it with the fluid from the first chamber on the delivery stroke thus mixing the two fluids.