Invention Grant
- Patent Title: Expansion band with unilateral strain and manufacturing method thereof
- Patent Title (中): 单向应变膨胀带及其制造方法
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Application No.: US13065622Application Date: 2011-03-24
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Publication No.: US08685193B2Publication Date: 2014-04-01
- Inventor: Jiang Wang
- Applicant: Jiang Wang
- Agency: David and Raymond Patent Firm
- Agent Raymond Y. Chan
- Priority: CN201110006961 20110111
- Main IPC: A61F2/44
- IPC: A61F2/44 ; B23P11/00 ; B29C65/48
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.
Public/Granted literature
- US20120179257A1 Expansion band with unilateral strain and manufacturing method thereof Public/Granted day:2012-07-12
Information query
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