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:
Oct. 14, 2014
Filed:
Jan. 09, 2008
Richard John Nighy, Stratford upon Avon, GB;
Daniel Peterson Godfrey, Cambridge, GB;
Lucy Ann Sheldon, Cambridge, GB;
Nicholas Martin Broadbent, Cambridge, GB;
Sam Gilbert Willis, Stamford, GB;
Richard John Nighy, Stratford upon Avon, GB;
Daniel Peterson Godfrey, Cambridge, GB;
Lucy Ann Sheldon, Cambridge, GB;
Nicholas Martin Broadbent, Cambridge, GB;
Sam Gilbert Willis, Stamford, GB;
Cornelius, Inc., St. Paul, MN (US);
Abstract
A pump driver, a disposable pump cartridge for use with the pump driver and a beverage dispenser employing the pump drive are disclosed. The disposable pump cartridge comprises at least one barrelhaving an inlet valveand an outlet valveassociated therewith. A pistonmovable within the barrelis retained in a minimum volume position during transit by a protrusionon the internal surface of the barrel. The pistonhas a piston shaftwith a hollow end arranged, in use, to releasably engage a piston driver to drive the pistonfrom its minimum volume position to an operative position, and to reciprocate the pistonwithin the barrelin its operative position to draw fluid into and pump fluid from the barrelvia the inlet valveand outlet valverespectively. Methods of engaging, disengaging and changing the disposable pump cartridge are also disclosed.