Laser measurement system, virtual detector probe and carriage yaw compensator
CA 1189316 A · Owner: Hamar, Martin R. · Inventors: Hamar, Martin R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A technique for measuring the distance between two points on an object along a laser beam axis along with devices, and methods of reducing measurement errors in such laser measurement systems are disclosed. The laser measurement system includes a source laser, a rotatable penta-prism for reflecting the source through 90° and for generating a plane perpendicular to the source upon rotation thereof, and a carriage upon which the penta-prism is mounted to allow the penta-prism to be moved parallel to the source. The position of the penta-prism along the source is adjusted until alignment with the two points on the object is detected, at which time the positions of the penta-prism which produce …
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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 June 25, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 25, 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
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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.