United States Patent [19] [ii] Patent Number: 4,868,845
Koropp [45] Date of Patent: Sep. 19,1989
[54] X-RAY APPARATUS WITH A MOVABLE PART
[75] Inventor: Norbert Koropp, Reinbek, Fed. Rep. of Germany
[73] Assignee: U.S. Philips Corporation, New York, N.Y.
[21] Appl. No.: 43,017
[22] Filed: Apr. 27,1987
[30] Foreign Application Priority Data
Apr. 26, 1986 [DE] Fed. Rep. of Germany 3614295
[51] Int. CI.* G05B 11/01
[52] U.S. CI. 378/204; 378/208;
378/183; 378/197; 248/333
[58] Field of Search 378/193, 195, 196, 197,
378/198, 204, 205, 208, 209; 248/323, 327, 333,
325, 188.4
[56] References Cited
U.S. PATENT DOCUMENTS
3,556,455 1/1971 Storm 248/333
4,677,273 6/1987 Colegrove et al 248/333
FOREIGN PATENT DOCUMENTS
2104509 8/1972 Fed. Rep. of Germany .
2361985 6/1975 Fed. Rep. of Germany .
Primary Examiner—Craig E. Church
Assistant Examiner—Joseph A. Hynds
Attorney, Agent, or Firm—Thomas A. Briody; Jack E.
Haken; Jack D. Slobod
[57] ABSTRACT
The invention relates to an X-ray apparatus with a motor-driven movable part. The drive takes place via a shaft, which is mounted in a bearing, the bearing forces of which are measured by a measuring device.
8 Claims, 3 Drawing Sheets
