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:
Mar. 20, 2012
Filed:
Apr. 20, 2007
Taizou Kamishita, Osaka, JP;
Taizou Kamishita, Osaka, JP;
Toko Yakuhin Kogyo Kabushiki Kaisha, Osaka, JP;
Shinko Chemical Co., Ltd., Ishikawa, JP;
Abstract
A fluid container according to the present invention includes a container body having upper and lower openings, and further having a shoulder member and a side wall which extend between the upper and lower openings. The fluid container also includes a spacer abutting on the shoulder member of the container body, and a slidable valve slidably moving along an inner surface of the side wall of the container body in a hermetically sealed manner. The slidable valve defines a container space for holding fluid, in conjunction with the side wall of the container body. Further, a bottom cover is provided for covering across the lower opening of the container body. The spacer and the slidable valve include a spacer surface and a valve surface, respectively, which oppose to each other and are inclined at tilt angles between 5 and 30 degrees relative to a horizontal surface. Therefore, an airless fluid dispensing system using the fluid container securely prevents a small air bubble from being trapped in the container body when filled in with the fluid, thereby to dispense a constant dosage without requiring undesired pumping actions prior to actual use.