Plunger locking mechanism
CA 2059359 A1 · Owner: Harris, Gerald A. · Inventors: Weber, Lorenz P.; Harris, Gerald A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A plunger restraining or locking device for preventing unwanted movement of a moveable body. The restraining device utilizes a plunger body carrying a rotatable key tumbler body which as a unit is axially slideably mounted in a main cylinder which is fixedly mounted in a stationary body. The slideable plunger-key tumbler, assembly is spring biased to a restraining or locking position protruding from the main cylinder. The plunger-key tumbler assembly is designed to be locked in either the protruding restraining or locking position or the withdrawn releasing or unlocked position by means of a transversley slideable detent actuated by an eccentric pin mounted on the key tumbler for moving the …
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 13, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 13, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 13, 2014.
- 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.