Metering cap with integral pump-motor hand operated mixing facility
CA 2183884 C · Owner: Dubach, Werner Fritz · Inventors: Dubach, Werner Fritz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A first component of a flowable material is squeezed out of a cartridge (C) which can be emptied by means of a press (P). The main component flows through the feed line (8) to the outlet line (11) and in the process drives two rotors (31) seated in the metering chamber (9) in the housing (1). Gear wheels (34) are seated on the shafts (30) of the rotors (31) which mesh with each, other and in this way form a gear pump (24). The gear pump (24) conveys an admixing component from an integrated container (18) via a feed line into the outlet line (11). At least two components can be admixed in a metered manner in an extremely exact ratio to each other by means of the metering cap of the invention …
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 24, 1995 and granted February 1, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 24, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 24, 2017.
- 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.