Variable speed universal drilling, tapping, and reaming machine
CA 2266186 A1 · Owner: Halder, Achyuta N. · Inventors: Halder, Achyuta N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
One of two arms is mounted adjacent one end thereof for rotation and axial adjustment on a cylindrical column which projects vertically upwardly from a generally flat rigid base. The second arm is rotatably connected adjacent one end to the opposite end of the first arm, and has mounted in its opposite end a rotatable spindle which is connected at its upper end to the drive shaft of a reversible electric motor that is secured on the second arm, and which is disposed to have a tool bit secured releasably to its lower end. The first arm is manually adjustable vertically on the column, and each arm can be releasably locked against rotation. The direction of rotation of the motor can be …
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 19, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 19, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 19, 2021.
- 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.