X-ray or gamma ray systems or devices – Source – Electron tube
Reexamination Certificate
2007-05-22
2007-05-22
Glick, Edward J. (Department: 2882)
X-ray or gamma ray systems or devices
Source
Electron tube
C378S199000, C378S200000, C165S104320
Reexamination Certificate
active
11298031
ABSTRACT:
In an expansion device for an x-ray apparatus, in particular with a rotary piston x-ray tube with a sealed coolant and/or insulation volume under a minimum pressure and pressing with this minimum pressure against an elastic pressure element, an elastic pressure element with a linear force-displacement characteristic curve (in particular in the form of a gas pressure spring with a linear elastic characteristic curve) is provided to prevent an excessive pressure load given a temperature rise.
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Heidrich Günter
Kutschera Wolfgang
Seufert Matthias
Glick Edward J.
Midkiff Anastasia S.
Schiff & Hardin LLP
Siemens Aktiengesellschaft
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