Process for producing crankshafts
CA 1303877 C · Owner: Frielingsdorf, Herbert · Inventors: Frielingsdorf, Herbert; Swars, Helmut; Grewe, Heribert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an assembled crank-shaft at least consisting of basic journals or main bearingjournals, carnk-webs and displacement or crank-journals and connecting rod bearing-journals respectively. It comprises a connection, produced by plastic deformation between crank-webs and bearing-journals with the ends of the bearing-journals for connecting purposes being, inserted into apertures in the crank-webs. Such a crankshaft is produced cost-effectively and with simple means in such a way taht at the basic journals and/or crankjournals there are formed externally smooth tubular portions as connecting regions which are inserted into straight, axis-parallel or equi-axial …
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 June 23, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 23, 2009.
- 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.