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:
Nov. 18, 2025
Filed:
Feb. 21, 2023
Korea Fuel-tech Corporation, Anseong-si, KR;
KOREA FUEL-TECH CORPORATION, Anseong-si, KR;
Abstract
The shaft assembly according to an embodiment of the present disclosure includes: a shaft connected to a blind sheet; a pair of end caps each being coupled to one side and the other side of the shaft to perform the rotational movement together with the shaft; a gear unit connected to either one of the pair of end caps and has a plurality of gears to interlock with the rotational movement of the shaft; and an elastic unit connected to any one of the plurality of gears of the gear unit and providing an elastic force so that the gear unit provides a rotational driving force to the shaft between a deployed position and a retracted position of the blind sheet.