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:
Jun. 30, 2020
Filed:
Oct. 11, 2017
Applicant:
Korea Airports Corporation, Seoul, KR;
Inventors:
Assignee:
Korea Airports Corporation, Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64F 1/305 (2006.01);
U.S. Cl.
CPC ...
B64F 1/305 (2013.01);
Abstract
A height adjustment device for adjusting a rotunda of a boarding bridge includes an external column fixed to the ground and having an inner space formed therein; an internal column which fixes a rotunda, and which is coupled so as to be slidable in the inner space such that rising and lowering is enabled; a driving unit which makes the internal column move vertically with respect to external column, and is disposed between the to the outside of the external column and the internal column; and a power unit for controlling the driving unit. The rotunda height adjustment device can be inspected, repaired for a defect thereof, and easily replaced.