Motorized valve actuating device
CA 2356525 A1 · Owner: Honeywell International, Inc. · Inventors: Castle, Robert W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A valve actuating device (20) for opening and closing a valve (22) is disclosed. The valve has a valve housing (28) a valve stem (48) attached to a , valve member (50) the valve member being biased to an open position. The valve actuating device includes a bidirectional motor mounted on a housing (54), a pinion gear (66) and a rack (62) including a body having an end portion (74) which is engageable with the valve stem of the valve to maintain the valve stem in the closed position.
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 21, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 21, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 21, 2022.
- 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.