A method for the exact setting down or taking up of cargo from aircraft
CA 2230292 A1 · Owner: Schafer, Ingolf · Inventors: Schafer, Ingolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
When setting down personnel or cargo from airships without the airship landing, precise setting down is either impossible or possible only with difficulty, particularly in poor weather. The aim of the invention is to provide a method by which a load can be set down or picked up with high or spot-on precision, even when the ambient conditions do not permit the airship to be kept still. The position of the load is clearly fixed by a threedimensional network of ropes spanned from the airship and the load is lowered , down to, or taken up from the ground, without the airship being required to remain still. During this time, the airship remains at a suitable height above the load. 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 June 24, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 24, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 24, 2019.
- 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.