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:
May. 28, 1991
Filed:
Jan. 10, 1990
Warren E Gilson, Madison, WI (US);
Other;
Abstract
A continuously adjustable liquid mixing device for intermixing selectively adjustable volumes of several liquids comprises a body for holding a plurality of volumes of the liquids including a recess at an upper end. A mechanism is provided for drawing up the volumes of liquid into the body and thereafter expelling the same from a lower end. A volume adjusting selecting mechanism is provided for at least one of the volumes including a rotary element mounted in the recess and frictionally engaging a wall surface thereof for retaining a selected volume that is desired. A rotary drive system is provided for rotating the volume adjustment mechanism and is readily accessible externally of the body for convenient manipulation to select a desired volume. The drive system is movable between an outer operating position for easy manipulation and a retracted position when not in use.