The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 07, 2004
Filed:
Dec. 19, 2001
Applicant:
Inventors:
Jean-Pierre Saladin, Bagneux, FR;
Serge Louis Muller, Guyancourt, FR;
Luc Gabriel Miotti, Vanves, FR;
Assignee:
GE Medical Systems Global Technology Company LLC, Waukesha, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G21K 1/04 ;
U.S. Cl.
CPC ...
G21K 1/04 ;
Abstract
A collimator for X-ray apparatus has an aperture defined by the edges of four movable flexible shutters. Each shutter can be moved independently of the other shutters; thus, the position and the size of the aperture can be adjusted at will. The shutters are moved by winding them onto drums; each drum is driven by a stepping motor. Springs bias the shutters towards the closed position of the collimator.