Target screen assembly with synchronised movement
CA 1060688 A · Owner: Rfd Systems Engineering Limited · Inventors: Edwards, Michael J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
A screen assembly particularly suitable for use as part of gunnery training equipment is disclosed. The screen assembly comprises first feed and take-up rollers for moving a first sheet of material across a screen area, in a first plane, and second feed and take-up rollers for passing a second sheet of material across the screen area in a plane parallel to the first plane. This forms a screen of two overlapping layers over the screen area. The two sheets are moveable in different directions to alter the respective areas of the sheets in mutually overlapping relation. So as to obliterate holes produced by previous shots.
Read the whole patent
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.
Why it's free to use
- Granted August 21, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 21, 1996.
- 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.