X-ray or gamma ray systems or devices – Source – Electron tube
Reexamination Certificate
2008-01-29
2008-01-29
Kao, Chih-Cheng G (Department: 2882)
X-ray or gamma ray systems or devices
Source
Electron tube
C378S132000
Reexamination Certificate
active
07324629
ABSTRACT:
In a rotary anode type X-ray tube, a rotary anode and a rotary structure supporting the anode are arranged within the vacuum envelope. A stationary shaft has a middle section which is fitted into a cylindrical portion of the rotary structure, and a dynamic pressure type radial bearing is arranged between the cylindrical portion and the middle section. The stationary shaft also has a first section between one end of the middle section and one end of the stationary shaft, and a second section between the other end of the middle section and the other end of the stationary shaft, which are fixed to the vacuum envelope. A transverse stiffness of the second section is set to be larger than a transverse stiffness of the first section, and a center of gravity is positioned in the middle section.
REFERENCES:
patent: 3758801 (1973-09-01), Merritt
patent: 4644577 (1987-02-01), Gerkema et al.
patent: 5185774 (1993-02-01), Klostermann
patent: 5224142 (1993-06-01), Ono et al.
patent: 5822395 (1998-10-01), Schardt et al.
patent: 5838763 (1998-11-01), Hiller et al.
patent: 6314161 (2001-11-01), Anno
patent: 7012989 (2006-03-01), Holland et al.
patent: 2002/0085676 (2002-07-01), Snyder
patent: 3139873 (2000-12-01), None
patent: 2001-236908 (2001-08-01), None
patent: 2003-16980 (2003-01-01), None
Fukushima Harunobu
Hattori Hitoshi
Iwase Mitsuo
Kitade Koichi
Nakamuta Hironori
Kabushiki Kaisha Toshiba
Kao Chih-Cheng G
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
LandOfFree
Rotary anode type X-ray tube does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotary anode type X-ray tube, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary anode type X-ray tube will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2747804