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:
Apr. 03, 2012
Filed:
Nov. 10, 2009
Kuan-chou Chen, Hsinchu, TW;
Fu-ching Tung, Hsinchu, TW;
Chia-ming Chen, Changhua County, TW;
Pei-shan Wu, Taipei County, TW;
Tean-mu Shen, Hsinchu, TW;
Jung-chen Ho, Hsinchu, TW;
Kuan-Chou Chen, Hsinchu, TW;
Fu-Ching Tung, Hsinchu, TW;
Chia-Ming Chen, Changhua County, TW;
Pei-Shan Wu, Taipei County, TW;
Tean-Mu Shen, Hsinchu, TW;
Jung-Chen Ho, Hsinchu, TW;
Industrial Technology Research Institute, Hsin-Chu, TW;
Abstract
A vacuum apparatus of rotary motion entry is disclosed, which comprises: a shaft sleeve, disposed on a cavity wall of a vacuum system; a rotary shaft, ensheathed by the shaft sleeve; and a transmission set, connected to the rotary shaft for driving the same; wherein, the rotary shaft is disposed passing through a hole formed on the base of the shaft sleeve while there are a first bearing, a second bearing, a sealing ring and a shaft seal being arranged separately inside the hole. Moreover, the shaft seal has a flake-like lip flange formed extending toward the center of the hole, that is capable of being extended away from the vacuum system by the inserting of the rotary shaft into the hole, and thereby, enabling the lip flange to engage with the rotary shaft tightly by the atmospheric pressure and thus isolating the outside world from the vacuum system.