Bi-planar cable cross reeving system
CA 2108290 C · Owner: Mi-Jack Products, Inc. · Inventors: Wisniewski, Michael Anthony; Baumann, James Arthur
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A crane and lift apparatus for controlling the lifting and lowering of large cargo containers. A trolley assembly includes a hoist drum from which is suspended a system of cable or rope reevings connected to material securing assembly. The apparatus is effective to unload containers stacked one above another from one location to an alternate location, The system of cable reevings permits the raising and lowering of containers in planes defined by X, Y, and Z axes. The cables are deployed from the hoist drum on the trolley assembly to sheaves disposed at the four corners of the material securing assembly and then returned to anchor assemblies secured to an undercarriage of the trolley …
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 13, 1993 and granted April 27, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 13, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 13, 2015.
- 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.