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. 08, 2002
Filed:
Oct. 28, 1999
I-Chung Ho, Rancho Palos Verdes, CA (US);
Other;
Abstract
An improved spill-resistant liquid bottle having a curved passageway and a vent passageway on the side in a curved neck having the shape of the number “7”, the letter “Z” or the letter “S” incorporated into the design of its mouth opening. This improved spill-resistant design allows a full bottle of liquid to be partially turned over with liquid level inside the bottle higher than the liquid level at the mouth opening, yet allowing no liquid to flow out from the bottle. Liquid will start to flow out only after the, bottle is turned further and the tilting angle reaches the predetermined start-to-pour angle. The start-to-pour angle is the tilting angle of the bottle when outside air starts to enter the bottle and liquid inside the bottle starts to flow out. This design makes pouring liquid from a full bottle much less likely to spill. The curved passageway creates additional flow restriction in comparison to ordinary bottles without such design. This added flow restriction results in longer filling time and more “glugging” while pouring. The separate vent passageway of this disclosure is an improvement to overcome the additional flow restriction in the curved passageway. This vent passageway provides a separate route for the release of inside air during filling process and allows ambient air to enter the bottle during pouring. Therefore, it improves the filling time and eliminates or greatly reduces the “glugging” of pouring.