Vacuum penetration for magnetic assist bearing
AssigneeVarex Imaging Corporation
InventorsVance Scott Robinson, Kasey Otho Greenland, Neil Bostrom, Jonathan Miller
Life of this patent
Estimating the term…
Abstract
In one example, a lift assembly may exert a force on a rotatable anode of an X-ray source. The lift assembly may include a lift shaft and a lift electromagnet. The lift shaft may be coupled to an anode and configured to rotate around an axis of rotation of the anode. The lift electromagnet may be configured to apply a magnetic force to the lift shaft in a radial direction. The lift electromagnet may include a coupling portion extending between an interior of a vacuum envelope and an exterior of the vacuum envelope and a winding portion coupled to the coupling portion. Windings may at least partially surround the winding portion.
Claims20
A lift assembly configured to exert a force on a rotatable anode of an X-ray source, the lift assembly comprising:
- a lift shaft coupled to an anode and configured to rotate around an axis of rotation of the anode;
- and
- a lift electromagnet configured to apply a magnetic force to the lift shaft in a radial direction, the lift electromagnet comprising:
- a coupling portion extending between an interior of a vacuum envelope and an exterior of the vacuum envelope;
- a winding portion coupled to the coupling portion;
- and
- windings at least partially surrounding the winding portion.
A method of manufacturing a lift assembly configured to exert a force on a rotatable anode of an X-ray source, the method comprising:
- positioning a coupling portion to extend between an interior of a vacuum envelope an exterior of the vacuum envelope;
- and
- positioning a winding portion against the coupling portion to form at least one pole of a lift electromagnet, the lift electromagnet configured to exert a force on the anode.
A lift assembly configured to exert a force on a rotatable anode of the anode assembly, comprising:
- a lifting shaft means coupled to an anode and configured to rotate around an axis of rotation of the anode;
- a lift electromagnetic means for apply a magnetic force to the lift shaft in a radial direction;
- a coupling means for extending between an interior of a vacuum envelope and an exterior of the vacuum envelope;
- a winding means for coupling to the coupling means and receiving windings at least partially surrounding the winding means.
Dependencies are inferred from the claim text.