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. 15, 2021
Filed:
Mar. 29, 2017
Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu, TW;
Wei-Chang Cheng, Taichung, TW;
Chi-Hung Liao, Taipei, TW;
Chien-Hung Wang, Miaoli County, TW;
Guan-Yu Lin, Taichung, TW;
Yung-Yao Lee, Hsinchu County, TW;
TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD., Hsinchu, TW;
Abstract
A drainage device includes a tank, a pipe and an air duct. The tank has a base plate and at least one first wall. The first wall is disposed on the base plate. The base plate and the first wall define a space. The pipe defines a channel. The pipe connects with the base plate. The channel communicates with the space. The air duct is disposed partially in the space and partially in the channel. There exists at least one gap between an outer surface of the air duct and an inner surface of the pipe.