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:
Dec. 05, 2000
Filed:
Aug. 23, 1999
Applicant:
Inventors:
Ming-Shinn Liou, Hsinchu, TW;
Tean-Mu Shen, Hsinchu, TW;
Cheng-Chan Tsai, Hsinchu, TW;
Jung-Chen Chien, Chupei, TW;
Tsung-Hsin Lin, Hsinchu, TW;
Assignee:
Industrial Technology Research Institute, Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05B / ; F04B / ; F04B / ;
U.S. Cl.
CPC ...
239556 ; 417313 ;
Abstract
A nozzle device for purging a vacuum pump includes a nozzle, the top portion of the nozzle is a tapered portion, two sides of the tapered portion are installed with nozzle holes for guiding the exhausted air sub-flow to be exhausted from the two sides of vent end.