US PATENT SUBCLASS 378 / 21
.~ Tomography

Current as of: June, 1999
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378 /   HD   X-RAY OR GAMMA RAY SYSTEMS OR DEVICES

1  DF  SPECIFIC APPLICATION {14}
21.~ Tomography {5}
22  DF  .~.~> With nonphotographic detector
23  DF  .~.~> Dynamic tomography
24  DF  .~.~> Transverse tomography
25  DF  .~.~> Planar tomography {1}
27  DF  .~.~> Nonplanar tomography

DEFINITION

Classification: 378/21

Tomography:

(under subclass 1) Subject matter including means which produces an image of a cross section of an object.

(1) Note. The devices found herein usually include some mechanism which allows relative movement between the source or detector of X-rays and the object being examined. In conventional tomography, the tomos:graphic movement is

typically produced by holding the object stationary and moving the X-ray source and the recording medium simultaneously in opposite directions about a pivot point lying in a plane through the object.

(2) Note. Tomography is commonly referenced in the art by the equivalent terms laminography, planiography, sectional radiography.

SEE OR SEARCH THIS CLASS, SUBCLASS:

4+, for computerized tomography.