Method and apparatus for rating hits on targets
CA 1195000 A · Owner: Alfons Kempf · Inventors: Huscher, Georg
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
Apparatus for rating hits on a target comprises two photoelectric detector systems . One of said systems is held in position adjacent to the path of travel of a target and is used to measure the distance from an entry hole to the center of the bull's eye of the target in the direction in which the target travels through the apparatus. The other system is mounted on a cross slide , which is movable at right angles to the direction of travel of the target and measures the distance from the center of the entry hole to the center of the bull's eye in that transverse direction. The two distance vectors are vectorially summed up by a vector computer and are multiplied with a calibration factor. …
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 October 8, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 8, 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.