X-ray or gamma ray systems or devices – Beam control
Reexamination Certificate
2007-04-17
2007-04-17
Ho, Allen C. (Department: 2882)
X-ray or gamma ray systems or devices
Beam control
C378S150000, C378S154000, C378S155000
Reexamination Certificate
active
10512394
ABSTRACT:
A device for the adjustment of the anti-scattering grid (G) of a radiological equipment to the different focal lengths that said equipment can provide includes a pair of pressing members (P) mobile in the direction transverse with respect to the plane of the grid (G), which is arranged and restrained between said pressing members (P) and a pair of corresponding underlying contrast members (C), the convex/concave profile of each pair of members (P, C) being obtained as locus of the local deformations, calculated point by point with a suitable spatial resolution, necessary to adjust the orientation of the segments of the grid (G) when going from one reference focal length to a second focal length.
REFERENCES:
patent: 3919559 (1975-11-01), Stevens
patent: 5291539 (1994-03-01), Thumann et al.
patent: 6415017 (2002-07-01), Kohda
patent: 6594878 (2003-07-01), Kohda
patent: 43 05 475 (1993-02-01), None
Patent Abstracts of Japan,Koda Katsuhiro, Scattered-Beam Eliminating Grid, Grid Apparatus, and Manufacture of Scattered-Beam Eliminating Grid, Application No. 11018561, Application Date Jan. 27, 1999, Publication No. 2000217813, published on Aug. 8, 2000.
Ho Allen C.
Lucas & Mercanti LLP
Mecal S.R.I.
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