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:
May. 30, 2023
Filed:
Nov. 10, 2021
Applicant:
Beijing University of Technology, Beijing, CN;
Inventors:
Assignee:
Beijing University of Technology, Beijing, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B 11/00 (2006.01); B29C 33/38 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
B25B 11/005 (2013.01); B29C 33/3842 (2013.01); B29L 2031/756 (2013.01);
Abstract
Disclosed are a negative pressure driven sucking apparatus and a preparation method thereof. The sucking apparatus comprises a sucking disc body, wherein a negative pressure cavity is formed in the middle of the sucking disc body, and the negative pressure cavity is connected with a vacuum line, and the bottom of the negative pressure cavity having a flexible section, and an annular wedge-shaped microstructure is formed at the bottom of the body surrounding the flexible section. Stable loading and release processes of the annular wedge-shaped microstructure are realized.