U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Dual energy power supply

Patent 5661774 Issued on August 26, 1997. Estimated Expiration Date: Icon_subject June 27, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

X-ray diagnostic apparatus
Patent #: 4670893
Issued on: 06/02/1987
Inventor: Tsuchiya

Baggage inspection system
Patent #: 4759047
Issued on: 07/19/1988
Inventor: Donges ,   et al.

X-ray scanner for detecting plastic articles
Patent #: 4884289
Issued on: 11/28/1989
Inventor: Glockmann, et al.

Radiographic image processing method and photographic imaging apparatus therefor
Patent #: 5132998
Issued on: 07/21/1992
Inventor: Tsutsui, et al.

Automatic concealed object detection system having a pre-scan stage
Patent #: 5182764
Issued on: 01/26/1993
Inventor: Peschmann, et al.

Luggage inspection device
Patent #: 5247561
Issued on: 09/21/1993
Inventor: Kotowski

Dynamic volume scanning for CT scanners
Patent #: 5262946
Issued on: 11/16/1993
Inventor: Heuscher

Device and method for inspection of baggage and other objects
Patent #: 5319547
Issued on: 06/07/1994
Inventor: Krug, et al.

Automatic concealed object detection system having a pre-scan stage
Patent #: 5367552
Issued on: 11/22/1994
Inventor: Peschmann

Apparatus for and method of measuring geometric, positional and kinematic parameters of a rotating device having a plurality of interval markers
Patent #: 5432339
Issued on: 07/11/1995
Inventor: Gordon, et al.

More ...

Inventors

Assignee

Application

No. 671202 filed on 06/27/1996

US Classes:

378/101, X-ray source power supply378/105, High frequency378/145BEAM CONTROL

Examiners

Primary: Wong, Don

Attorney, Agent or Firm

Foreign Patent References

  • 31 50 306 A1 DE. 06/13/1983

International Class

H05G 001/10

Abstract

The disclosed dual energy baggage scanning assembly includes a CT scanning system, and a conveyor belt for transporting items through the CT scanning system, and an improved power supply for the X-ray source of the CT scanner so that a dual energy beam is provided. The power supply alternately powers the X-ray tube of the scanning system at high and low voltage levels at a predetermined rate and comprises at least one high voltage DC power supply for providing a stable, high DC voltage the X-ray tube; means, including at least one waveform generator, for providing a periodic time varying waveform; and coupling means, including a transformer, for coupling the waveform generator to said DC voltage supply so that the total voltage across the cathode and anode of the tube is periodically changed between the high and low voltage levels at the predetermined rate in response to the periodic time varying waveform provided by the waveform generator.

Other References

  • Alvarez, Robin et al., "Energy-selective Reconstructions in X-ray Computerized Tomography", Phys. Med. Biol. 1976, vol. 21, No. 5, 733-74
PatentsPlus Images
Enhanced PDF formats
loading...
PatentsPlus: add to cart
PatentsPlus: add to cartSearch-enhanced full patent PDF image
$9.95more info
PatentsPlus: add to cart
PatentsPlus: add to cartIntelligent turbocharged patent PDFs with marked up images
$18.95more info
 
Sign InRegister
Username  
Password   
forgot password?