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.:

US 7934522 B1

PDF
Full Text
Expired
Date of Patent:
May. 03, 2011

Filed:

Dec. 12, 2006
Applicants:

Chian Hua Liao, Sindian, TW;

Yao Sin Liao, Sindian, TW;

Yao Chuan Liao, Sindian, TW;

Inventors:

Chian Hua Liao, Sindian, TW;

Yao Sin Liao, Sindian, TW;

Yao Chuan Liao, Sindian, TW;

Assignee:

Other;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B65B 3/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A multi-sectional airtight seal for continuous air-filling includes: an input passage; plural first sub-tubes aligned parallel to a lateral side of the input passage; plural first valve devices including a first filling passage and a second filling passage with the first filling passage connecting the first sub-tubes and the input passage; plural second sub-tubes serially connecting the first sub-tubes; and plural second valve devices for connecting the second sub-tubes and the second filling passages to allow through-linking between the second sub-tubes and the input passage. When external air in the input passage enters through the first filling passage of the first valve device to fill and expand the first sub-tubes, the second sub-tube is filled through the second filling passage and the second valve device to be expanded as well.


Find Patent Forward Citations

Liao, Chian. (2011). Multi-sectional airtight seal for continuous air-filling and air valve device thereof (U.S. Patent No. 7934522). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7934522

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