Ballast weight for washing machines
CA 2481439 A1 · Owner: Wirthwein, Udo · Inventors: Kreuziger, Ute; Kaulbersch, Otto; Wirthwein, Udo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a washing machine comprising parts that are mounted in a manner that permits them to oscillate particularly washing machine tubs, on which ballast bodies are fixed. The ballast body (1) is approximately shaped like a ring or ring segment with a selectable cross-sectional thickness and comprises, on at least one circular arc a number of recesses (11, 11', 11'', 15) and/or openings whose surfaces on points of contact are complementary to corresponding outer contours (232 242) of fixing elements , (23, 24) on the part. The ballast body (1) is preferably made of plastic and ferrous material, which is shaped by injection molding a thermoplastic material, which …
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 April 3, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 3, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 3, 2025.
- 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.