Gate assembly
CA 1300951 C · Owner: Cysewski, Jerome · Inventors: Cysewski, Jerome
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A counterbalancing assembly for use with a gate vertically rotatable about an axle carried by a support structure. The counterbalancing assembly utilizes a coil spring having one end attached to the support structure and having its other end attached to one end of a cable. The other end of the cable is attached to the gate at a point spaced apart from the axle. This cable, intermediate its ends, is trained around a pulley. The pulley is positioned so that as the gate is lifted the spring, provides a resilient force assisting in the opening of the gate and, as the center of gravity of the gate crosses over the axle and the gate starts to fall on the other side of the axle the, spring …
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 May 19, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 19, 2009.
- 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.