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. 01, 2022
Filed:
Dec. 21, 2018
Illinois Tool Works Inc., Glenview, IL (US);
Jianwei Bai, Shanghai, CN;
Yifan Wang, Shanghai, CN;
Illinois Tool Works Inc., Glenview, IL (US);
Abstract
A door lock assembly includes a housing having a hollow structure, a lifting shaft provided inside the housing, a driving spring, and a buffering device. A top end of the lifting shaft is configured for assembling a refueling or charging port flap, the lifting shaft being slidably engaged with the housing along a first portion and threadably engaged with the housing along a second portion. One end of the driving spring is fixed and the other end abuts against the lifting shaft for driving the lifting shaft to move relative to the housing. The buffering device provides a buffering function in the when the lifting shaft is threadably engaged with the housing.