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. 12, 2024
Filed:
Jul. 22, 2020
Zhengzhou Tobacco Research Institute of Cntc, Zhengzhou, CN;
Bin Li, Zhengzhou, CN;
Yue Sun, Zhengzhou, CN;
Le Wang, Zhengzhou, CN;
Guangyang Qiu, Zhengzhou, CN;
Mingjian Zhang, Zhengzhou, CN;
Ran Chen, Zhengzhou, CN;
Ke Zhang, Zhengzhou, CN;
Nan Deng, Zhengzhou, CN;
ZHENGZHOU TOBACCO RESEARCH INSTITUTE OF CNTC, Zhengzhou, CN;
Abstract
The application proposes a non-destructive testing method for the sealing degree of the small cigarette box packaging, which includes placing the small cigarette box to be tested in an airtight chamber, using a balance cabin to quickly form a stable negative pressure in the airtight chamber; The pressure change of the sealed chamber is continuously measured until equilibrium, and the data model is analyzed and established by using Darcy's law, Fick's diffusion law and the physical process of molecular kinetic theory. Through the non-destructive testing method for the sealing degree of the small cigarette box packaging of the present invention, the traditional destructive measurement (damaged small box packaging) for measuring the sealing degree of cigarette small box is changed into non-destructive testing; The test results have specific physical meaning; The test time of a single sample is reduced to ⅕ of the time of destructive test.