Dual drum drive unit
CA 2080885 A1 · Owner: Werlberger, Josef · Inventors: Werlberger, Josef
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dual drum drive unit in particular for a ropeway, with, at least one motor includes a transmission unit for dividing the motor power to the drums in order to attain a high efficiency. The transmission unit includes a first gearing which is operatively connected to the motor and has an output and a second gearing which is operatively connected to the first gearing and has two outputs which are respectively connected to the drums, with the output of the first gearing being selectively connectable with the two outputs of the second gearing.
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 19, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 19, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 19, 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.