Thread measurement tool
CA 1254032 A · Owner: Amf Incorporated · Inventors: Storace, Anthony; Yannella, Albert V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A portable, automatic thread inspection tool for measuring a plurality of parameters on a pipe thread and the like in situ irrespective of whether the thread is internal or external to the pipe. The tool comprises a frame adapted to be readily installed over the wall of a pipe from the pipe end. A first signal is generated and is representative of the thread height error. A second signal is generated and is representative of the thread lead error. A third signal is also generated and is related to the average taper of the thread. The first, second and third signals are received and treated to generate a display of the thread height error, thread lead error and average thread taper relating …
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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 May 16, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 16, 2006.
- 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.