Tool changing device for robot
CA 2046207 A1 · Owner: Kabushiki Kaisha Yaskawa Denki Seisakusho · Inventors: Nakako, Toru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
According to the present invention there is, provided a tool changing device for a robot comprising a piston reciprocating in a cylinder, a supporting block provided at the distal end of a piston rod a pair of, links interconnecting the supporting block to a pair of cramp members cramping a tool mounting plate. Even in a case where the supply of a pressurized fluid is interrupted during the cramped state and, outside uncramping force is applied to the cramp members a side surface of each cramp member abuts against a side surface of the supporting block, and the cramping members are thereby held in the cramping state.
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
- Filed July 4, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 4, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 4, 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.