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:
Feb. 28, 2017
Filed:
Jun. 19, 2015
Air Products and Chemicals, Inc., Allentown, PA (US);
Charles Michael Birtcher, Valley Center, CA (US);
Gildardo Vivanco, San Diego, CA (US);
William Jon Sheehy, Valley Center, CA (US);
AIR PRODUCTS AND CHEMICALS, INC., Allentown, PA (US);
Abstract
In one respect, the invention is an improved diptube design for a container for containing and dispensing a liquid chemical, the diptube generating a spring force when compressed that acts to maintain a bottom end of the diptube in contact with a bottom interior surface of the container and a notch located at a bottom edge of the bottom end of the diptube that creates a flow communication between the diptube and the interior volume of the base portion of the container. In another respect, the invention is a method of constructing a container having these limitations.