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:
Dec. 08, 2020
Filed:
Oct. 12, 2017
Boe Technology Group Co., Ltd., Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
The present disclosure discloses a vacuum adsorption unit and a vacuum adsorption carrier, wherein the vacuum adsorption unit comprises: a housing defining an air path through-hole therein, the air path through-hole provided with an upper abutting surface and a lower abutting surface; a piston movable provided in the air path through-hole and is located between the upper abutting surface and the lower abutting surface; an outer peripheral wall of the piston is slidably matched with an inner peripheral wall of the air path through-hole; an elastic member having both ends that respectively abut against the housing and the piston, to constantly drive the piston to abut on the upper abutting surface; and a pressure relief passage communicated with the air path through-hole, and is configured to be closed only when the piston moves to abut against the lower abutting surface.