Ratchet-type linear or circular locking device having self-locking and automatic unlocking features
CA 2046635 C · Owner: Panin, Fabio · Inventors: Panin, Fabio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Locking device (100) comprising an element (30) mobile between two extreme stop positions and a pivoting ratchet (10). The latter (10) is symmetrical in relation to a plane traversing its pivot axis (35) and comprises a first (15) and second (25) locking pawl for engaging with each in a stable manner and under the effect of a load (F) acting on the mobile element (30) one of the symmetrical notches (50a, 50b) provided in the mobile element. A spring (20) is fixed in a pretensioning state such that for a given elastic reaction (R1) of the latter the arm in relation to the pivot axis (35) of the ratchet (10) in either one of the two locking positions is such that the ratchet (10) is unlocked …
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 January 24, 1990 and granted August 24, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 24, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 24, 2012.
- 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.