Manual control device
CA 2427358 A1 · Owner: Cooper Cameron Corporation · Inventors: Biester, Klaus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a manual control device (1) for controlling a device (3) that is subjected to the action of force in a direction counter to the control direction (2), particularly for use in the domain of crude oil or natural gas extraction, such as a blowout preventer (BOP) a valve, an , actuator, a throttle or the like. Said manual control device is equipped with a rotating spindle (5) that can be connected to a displacing element (4) of the device (3), said displacing element being displaceable in the control direction (2), and with a manually controllable adjusting device (7) that is drive-connected to said rotating spindle via at least one gearing mechanism (6). 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 October 30, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 30, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 30, 2023.
- 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.