Conveyor or crane beam of extruded aluminum alloy
CA 2186733 C · Owner: Taylor, Michael K. · Inventors: Taylor, Michael K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A beam (20) for a bridge crane or conveyor system is extruded from an aluminum alloy in a configuration that disposes thickened regions (21 24) at four, corners of the beam (20). One pair (21) of these is along opposite edges of a top flange (11), and another pair (24) is at opposite lower corners of a bottom channel (15). The thickened regions (21,24) are formed with alignment pin dowel grooves (22, 25) that can receive dowel pins (35) for aligning butt joints between beams. The thickened regions (21,24) also contribute to the strength-to-weight ratio of the beam (20).
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 March 20, 1995 and granted December 3, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 20, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 20, 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.