Diameter measuring system for cylindrical objects
CA 1085605 A · Owner: Exxon Nuclear Company, Inc. · Inventors: Ryden, Joseph, Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for the rapid and accurate measurement of the diameter of cylindrical objects and the like, such as nuclear reactor fuel pellets. The system essentially operates on the principle that when an infrared emitter and receiver are aligned in diametrically opposed relationship such that the beam from the emitter impinges on the receiver the, output of the receiver is proportional to the amount of energy received by it. Measurement of cylindrical objects such as pellets is accomplished by passing the object to be measured between the emitter and the receiver. The beam initially is arranged so that as the object passes between the two elements, it partially blocks the beam. Those objects …
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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 September 16, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 16, 1997.
- 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.