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:
Apr. 01, 2014
Filed:
Mar. 24, 2011
Applicant:
Jiang Wang, Nantong, CN;
Inventor:
Jiang Wang, Nantong, CN;
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F 2/44 (2006.01); B23P 11/00 (2006.01); B29C 65/48 (2006.01);
U.S. Cl.
CPC ...
Abstract
An expansion band includes a first layer, a second layer, a shrinking layer for shrinking said first layer and said second layer, a bond line for sealing said first layer and said second layer to form an inner space therein and dividing said inner space into a plurality of air passages which can communicate with each other, a plurality of air passages formed between said first layer and said second layer, and an air nozzle communicate with said air passage.