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:
Feb. 18, 2020
Filed:
Jun. 28, 2017
Hongfujin Precision Electronics (Tianjin) Co., Ltd., Tianjin, CN;
Chuang-Wei Tseng, New Taipei, TW;
Yu-Ching Chien, New Taipei, TW;
Che-Hsun Chen, New Taipei, TW;
Chi-Ming Huang, New Taipei, TW;
HONGFUJIN PRECISION ELECTRONICS (TIANJIN) CO., LTD., Tianjin, CN;
Abstract
A self-propelled warning device used for road safety includes a bracket, a warning sign mounted to an upper side of the bracket, and at least one driving mechanism. The driving mechanism includes a supporting leg, a driving unit, and a wheel. The supporting leg includes a receiving portion, the receiving portion defines an accommodating space. The driving unit is accommodated in the accommodating space. The wheel is mounted on the receiving portion and is drivingly connected to the driving unit. The wheel is driven by friction of the driving unit. The driving mechanism is also disclosed.