Spray gun with regulated pressure feed paint cup
CA 2060541 C · Owner: Ransburg Corporation · Inventors: Grime, Thomas E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved paint spray gun with a regulated pressure feed paint cup. High pressure air is supplied through a hose and a fitting to the spray gun handle. The air pressure is reduced to a low pressure high volume flow within the gun for atomizing the paint. The inlet of a pressure regulator is connected through a quick connect fitting directly to the gun handle for receiving high pressure air. The regulator outlet is connected through a flexible hose to a barbed fitting on a check valve on a paint cup lid for applying a controlled paint feed pressure to the cup. The location of the regulator does not adversely affect the maneuverability or balance of the gun during use and the regulator can …
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 February 3, 1992 and granted December 22, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 3, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 3, 2014.
- 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.