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. 13, 2006
Filed:
Oct. 15, 2003
Yoshiyuki Sakaguchi, Narashino, JP;
Satoshi Okudera, Narashino, JP;
Hirotaka Namiki, Narashino, JP;
Takashi Kabasawa, Narashino, JP;
Togru Miwata, Narashino, JP;
Yoshiyuki Sakaguchi, Narashino, JP;
Satoshi Okudera, Narashino, JP;
Hirotaka Namiki, Narashino, JP;
Takashi Kabasawa, Narashino, JP;
Togru Miwata, Narashino, JP;
BOC Edwards Technologies Limited, Narashino-Shi, JP;
Abstract
A molecular pump has a casing having a gas inlet port and a gas discharge port, a stator disposed within the casing, a shaft disposed in the casing concentrically with the stator, a bearing rotatably supporting the shaft for undergoing rotation relative to the stator in a preselected direction of rotation, a rotor mounted on the shaft for rotation therewith in the preselected direction of rotation, and a motor for rotationally driving the shaft. A flange is connected to the casing at the gas inlet port. The flange has at least one mounting hole for receiving a fastener, a first elongated through-hole disposed in communication with the mounting hole, and a second elongated through-hole spaced apart from the first elongated through-hole in a direction toward a direction of rotation opposite to the preselected direction of rotation to define between the first and second elongated through-holes a deformable thin-wall portion for undergoing deformation due to a shock resulting from a torque acting on the casing in the preselected direction of rotation.