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:
Apr. 19, 1983
Filed:
Jun. 19, 1980
James W Cutter, Hollister, CA (US);
The Machlett Laboratories, Incorporated, Stamford, CT (US);
Abstract
An X-ray collimator comprising an X-ray shielded enclosure having aligned entrance and exit apertures for permitting passage of an X-ray beam, the exit aperture having a generally rectangular configuration defined by edges of two orthogonally disposed pairs of opposing rotatable exit shutter elements. Each of the exit shutter elements has a generally semi-cylindrical configuration and is concentrically disposed about a respective axis of rotation. Each pair of semi-cylindrical exit shutter elements is mounted for opposing rotatable movement within the other pair of semi-cylindrical exit shutter elements. The entrace aperture of the housing may be defined by two orthogonally disposed pairs of opposing shutter plates, one pair thereof being directly linked to an associated pair of semi-cylindrical exit shutter elements for corresponding movement therewith.