Nipple chuck
CA 1288936 C · Owner: Rutkowski, Michael J. · Inventors: Rutkowski, Michael J.; Babb, Larry F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A nipple chuck for holding a pipe nipple blank in a power driven threading machine is comprised of three arcuate sleeve segments engaged between the jaws of the threading machine chuck. The segments are internally threaded at the front ends thereof and are pivotally supported adjacent the rear ends thereof such that the internally threaded front ends are manually pivotal radially of the nipple chuck axis. In use, the segments are closed about the threaded end of the nipple blank which is then securely grasped by radial engagement of the machine chuck jaws with the segments. Following threading of the unthreaded end of the nipple blank the nipple chuck is removed, …
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, and the Claude kit works from them.
Why it's free to use
- Granted September 17, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 17, 2008.
- 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.