Rotary kinetic fluid motors or pumps – Including destructible – fusible – or deformable non-reusable...
Reexamination Certificate
2006-06-13
2006-06-13
Look, Edward K. (Department: 3745)
Rotary kinetic fluid motors or pumps
Including destructible, fusible, or deformable non-reusable...
C415S090000, C415S213100, C417S423400
Reexamination Certificate
active
07059823
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.
REFERENCES:
patent: 4086012 (1978-04-01), Buckley et al.
patent: 6485254 (2002-11-01), Davis
patent: 2002/0172589 (2002-11-01), Yamashita et al.
patent: 1258634 (2002-11-01), None
patent: 1312804 (2003-05-01), None
patent: 1314892 (2003-05-01), None
PATENT ABSTRACTS of JAPAN, vol. 1996, No. 09, Sep. 30, 1996, publication No. 08114196, publication date May 7, 1996.
Kabasawa Takashi
Miwata Togru
Namiki Hirotaka
Okudera Satoshi
Sakaguchi Yoshiyuki
Adams & Wilks
BOC Edwards Technologies Limited
Edgar Richard A.
Look Edward K.
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