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. 15, 2005
Filed:
Mar. 12, 2003
Tooru Miwata, Narashino, JP;
Satoshi Okudera, Narashino, JP;
Yoshiyuki Sakaguchi, Narashino, JP;
Yasushi Maejima, Narashino, JP;
Tooru Miwata, Narashino, JP;
Satoshi Okudera, Narashino, JP;
Yoshiyuki Sakaguchi, Narashino, JP;
Yasushi Maejima, Narashino, JP;
BOC Edwards Technologies Limited, Narashino, JP;
Abstract
A turbo-molecular pump has a main body and a pump case for covering the main body. A first flange is integrally formed with the pump case for connection to a second flange integrally with a vacuum chamber. The flange of the pump case and the flange of the vacuum chamber are integrally connected together with fastening bolts. A clamping structure separately clamps the first and second flanges together by surrounding a portion of each of the first and second flanges.