Hanger mechanism
CA 1194409 A · Owner: Hughes Tool Company · Inventors: Baugh, John L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A universal liner hanger apparatus is shown for hanging a liner in a well bore which has a universal body having upper and lower connecting ends. A hanger mechanism including a plurality of gripping slips and slip expanders are carried on the tubular body for engaging the well bore casing. Interchangeable setting mechanisms can be connected to a selected one of the upper and lower connecting ends and are actuable to engage the gripping slips with the slip expanders responsive to each of mechanical manipulation and fluid pressure. A single universal body is used with each of the different setting mechanisms to make-up the universal liner hanger apparatus. The hanger mechanism shown includes …
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 October 1, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 1, 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.