Rotor nozzle for a high-pressure cleaning device
CA 2080696 C · Owner: Dellert, Gerhard · Inventors: Dellert, Gerhard; Wesch, Johann G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In order to reduce the undesired rotation of the nozzle body about its own longitudinal axis in a rotor nozzle for a high-pressure cleaning device comprising a casing having in a front wall a pot-shaped recess with a central opening therein, a nozzle body with a bore extending through it the nozzle, body being supported at a spherical end in the pot-shaped recess extending, in the longitudinal direction over part of the casing and having an outside diameter which is smaller than the inside diameter of the casing and an inlet, for a liquid opening tangentially into the casing and causing the liquid to rotate about the longitudinal axis in the casing so that the nozzle body rotates together …
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 15, 1991 and granted August 18, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 15, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 15, 2013.
- 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.