Scraping device for floor and surface cleaning machines
CA 1307375 C · Owner: Zoni, Sergio · Inventors: Zoni, Sergio
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 scraping device for floor and surface cleaning machines, and comprises: a first upright bell-shaped element (2) fixed against rotation and having an edge (6a) adapted to bear directly on a surface to be cleaned a second inverted bell-shaped element (9) engaged coaxially and rotatably inside the first element (2) to define a substantially closed chamber (10) therewith, spindles (13) rotatably through-penetrating the second element (9) scraping brushes (14), having metal bristles and being engaged rotatively with the second element (9), outside the chamber (10), and rotatively rigid with the spindles, and drive members (15,16,17) for transmitting the rotary motion …
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 September 15, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 15, 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.