Permanent magnet dc motor with magnets recessed into motor frame
CA 1196367 A · Owner: Powertron Division Of Contraves Goerz Corporation · Inventors: Lordo, Robert E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract A motor frame and stator assembly (20) (27), for a, permanent magnet direct current motor is shown which is characterized by accommodating a larger and more powerful armature (12) relative to the interior and exterior dimensions of the frame (20). The assembly (20) (27), includes a metal frame (20) having a pre-determined length and continuous walls the inner surface of which define a void (24). A plurality of arcuate recessed, seats (25) is formed into the inner walls of the frame (20) in spaced-apart intervals around and extending along at least a part of the length of the frame (20). The walls of the frame (20) along the extent of the seats (25) are of reduced cross-sectional …
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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 November 5, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 5, 2002.
- 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.