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:
Nov. 18, 2003
Filed:
Jul. 30, 2002
Applicant:
Inventors:
Barry L. Rauworth, Young America, MN (US);
John M. Hennan, Eden Prairie, MN (US);
Assignee:
Entegris, Inc., Chaska, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
B65D 8/300 ;
U.S. Cl.
CPC ...
B65D 8/300 ;
Abstract
In a preferred embodiment, a blow molded drum has a port including a neck with exterior buttress threads and a port opening having a shoulder. A snap-in down tube assembly seats with the shoulder and has an upwardly extending nipple. The dispense head has a first flow duct extending to a nipple and a second flow duct leading to an annular space around the nipple for a return fluid line or for providing air or a gas for displacing withdrawn fluid. In a preferred embodiment the threaded nut provides an axial removal force that disengages the nipple engaging portion with the nipple as the retainer nut is loosened.