Compact x-ray collimator
CA 1181536 A · Owner: Machlett Laboratories, Incorporated (The) · Inventors: Cutter, James W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
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 entrance aperture of the housing may be defined by two orthogonally disposed pairs …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted January 22, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 22, 2002.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.