Portable align boring machine
CA 1290959 C · Owner: Dubois, Gerald Joseph · Inventors: Dubois, Gerald Joseph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A self-centering and aligning attachment assembly for attaching a portable align boring machine to a workpiece or associated support for machining a bore in the workpiece includes first and second attachment sub-assemblies. The a first attachment sub-assembly has a first tubular member through which the boring bar can pass and which is securable to the boring machine. The first tubular member has a first inner bearing member with an inner bearing surface to slidably and rotatably receive the boring bar, and an outer bearing member with an outwardly curved and an outwardly facing bearing surface. A collar member surrounds the first tubular member and has an inwardly facing curved bearing …
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 October 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 2008.
- 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.