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:
Mar. 23, 2022
Zhengzhou Wanmayun Electronic Technology Co., Ltd., Zhengzhou, CN;
Hongfujin Precision Electronics (Zhengzhou) Co., Ltd., Zhengzhou, CN;
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Hong Liu, Zhengzhou, CN;
Xi-Juan Luo, Zhengzhou, CN;
Zhengzhou Wanmayun Electronic Technology CO., Ltd., Zhengzhou, CN;
HONGFUJIN PRECISION ELECTRONICS (ZHENGZHOU) CO., LTD., Zhengzhou, CN;
HON HAI PRECISION INDUSTRY CO., LTD., New Taipei, TW;
Abstract
A monitor for monitoring the conditions of and around and under a manhole cover senses current conditions of the manhole cover and enables wireless self-reporting of such conditions at intervals and upon certain emergency situations arising. The monitor of the manhole cover includes a shell, a cover plate, and a base. The cover plate is detachably assembled with the shell. The base connects the shell with the manhole cover. The base includes a magnet to which the manhole cover is strongly attracted. The monitor is held to the manhole cover by the magnet. A mounting operation of the monitor requires only placement by hand.