Hand-driven wood splitter
CA 2200860 C · Owner: Abrahamsson, Clas · Inventors: Abrahamsson, Clas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a hand-operated wood-splitter with striking weight (1) movable along a rod (2) connected at its lower end to an axe or splitting wedge (5). The invention is characterized in that the rod (2) for the striking weight (1) is provided at its upper end with a stop nut or other stop means (12). The axe, etc. is secured to a swinging arm (8) movable along a second rod (7) and rotatable around this. This latter rod is secured to a stump (10) or a stand. At the lower end of the rod for the striking weight is a nut or ring which is movable to a limited extent in vertical direction in order to reduce the stresses.
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 September 25, 1995 and granted January 4, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 25, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 25, 2017.
- 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.