Plug-in brush cartridge
CA 1047588 A · Owner: Milwaukee Electric Tool Corporation · Inventors: Lafferty, Gary S. (Sr.)
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cartridge on which is mounted two active carbon brush assemblies plugs into a specially designed opening in one side of a motor housing of a power operated tool. As the cartridge is inserted or removed electric terminals mounted on the cartridge connect with or disconnect from terminals fixed on the motor housing to automatically establish or disconnect the electrical connections for controlling the motor operation. A single non-metallic screw holds the cartridge with both active brush assemblies in operative position within the opening with the active carbon brushes in juxtaposition and engageable with the commutator of the motor at diametrically opposed positions. The opening in the …
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 January 30, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 30, 1996.
- 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.