Apparatus for bending rectangular tubes
CA 1309002 C · Owner: Trudell, Gerald R. · Inventors: Trudell, Gerald R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bending apparatus is provided for rectangular tubes. The apparatus comprises a bending die a wiper die, a clamp die, a pressure die and a mandrel. The clamp die and pressure die are provided with tongues which are engageable in corresponding grooves in the bending and wiper dies. The tongues and the clamping and pressure surfaces of the respective dies are dimensioned to enable the rectangular tube to be bent about either of its two axes by placing the tube on either of the opposed sides of the respective tongues. The tongue of the pressure die is movable to facilitate the tangential advancement of the pressure die under the action of a booster for urging the tubing into the bend. The …
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 20, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 20, 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.