Frictional joints
CA 1301561 C · Owner: Sutcliffe, Frank · Inventors: Sutcliffe, Frank
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A frictional joint between a first member and a second member is dismantled by means of a hydraulic nut fitted onto an external screw thread of the first member. The hydraulic nut acts on a separation ring having an external screw thread engaged with an internal screw thread in a co-axial recess provided in the second member.
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 May 26, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 26, 2009.
- 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.