Method for installing elevator doors
CA 1279466 C · Owner: Chapelain, Jean Claude · Inventors: Penicaut, Alain Marie Roger; Chapelain, Jean Claude
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method For Installing Elevator Hall Doors A method is disclosed for installing a hall door on a floor when the elevator rails or car are not installed. A template is placed at one terminal or end of the elevator shaft and is used to locate the position of a temporary bracket containing three holes which are spaced apart to correspond with three marks along the sill of the elevator door assembly. The holes are on a common line and are at a preestablished distance from the wall of the shaft. Once this bracket is installed in the shaft a plumb, line is extended from each of the holes to another bracket below. The plumb lines hang next to the floor on which a hall door is to be installed. This …
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 29, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 29, 2008.
- 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.