Lifting devices
CA 1194018 A · Owner: Snell, Thomas B. · Inventors: Kerton, Peter S.; Snell, Thomas B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improvements relating to lifting devices" A lifting device for animals, such as downer cows, has an inflatable bag (1) on a stabilising frame (2). When inflated, the bag has a valley (4) accentuated at one end, for the cow's belly and udder. A harness (3) is provided for strapping the cow to the bag. A cow can be rolled on to the deflated bag and strapped on, and as inflation proceeds she is raised up straddling the bag. This ultimately takes her entire weight while circulation is restored. The bag may be compartmented so that inflation can be progressive from one compartment to the next, assisting the lifting procedure.
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
- Granted September 24, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 24, 2002.
- 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.