Ratchet assembly for winding a counterbalancing mechanism of a door, door assembly including the same and kit for assembling the ratchet assembly
CA 2435362 A1 · Owner: Savard, Normand · Inventors: Savard, Normand
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A ratchet-like assembly for winding a counterbalancing mechanism of a door. The ratchet-like assembly includes at least one plate at least one , ridge, an, actuator, and at least one pawling element. Each plate is operatively mounted onto a fixed structure and includes an orifice through which extends a shaft of the, counterbalancing mechanism and about which the shaft is rotatable along opposite first and second directions of rotation. Each ridge is provided about an, outer edge of the corresponding orifice. The actuator is operatively connected to, each plate and is operable between a locked configuration and an unlocked configuration. Each pawling element is mounted onto the actuator …
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 17, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 17, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 17, 2025.
- 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.