Mechanism for feeding welding wire
CA 1094171 A · Owner: Chemetron Corporation · Inventors: Schmerling, Donald W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wire-feeding mechanism comprises a rotatably mounted pulley formed on its edge with a continuous circumferential groove and plural rollers arranged to hold an endless flexible belt against a segment of the edge of the pulley. One of the rollers drives the belt which in turn drives another of the rollers. A third roller is mounted to maintain the belt in continuous tension. The rollers are toothed to interengage with lugs on the rollers to allow precise control of the movement of the belt without slippage.
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 January 20, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 20, 1998.
- 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.