Torch alignment verification method and apparatus
CA 2044096 C · Owner: Gold, Raymond Dee · Inventors: Gold, Raymond Dee
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for checking the alignment of a torch on a robotic welder to assure that the torch is in the proper position before an automatic welding operation commences or continues. An alignment verification device which includes a plunger with a contact area of relatively small diameter is positioned at the workstation. The projecting wire tip of the robotic torch is automatically moved axially toward the plunger, and, if alignment is within the desired range, the tip will contact and depress the plunger. Upon depression of the plunger a cam-operated limit, switch is closed to send a signal to the robot that alignment is acceptable. If the torch is out of alignment for any …
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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
- Filed June 7, 1991 and granted November 1, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 7, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 7, 2013.
- 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.