Movable apparatus adhering to the surface of a wall
CA 1051490 A · Owner: Sanko Co. Ltd. · Inventors: Urakami, Fukashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A movable apparatus adhering to the surface of a wall which is capable of moving continuously and smoothly on the hull of a ship or the wall of a modern architectural structure such as a sky-scraper without the danger of falling. The apparatus comprises a body which is capable of moving along the wall, a plurality of wall-adhering members mounted on that body, each adhering member being moved in the same direction as that of the body, and a device capable of adhering and separating each wall-adhering member from the wall. The apparatus performs a series of operations comprising a first operation to separate each wall-adhering member, a second operation to change the position of each member …
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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
- Granted March 27, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 27, 1996.
- 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.