Metering pump
CA 1260761 A · Owner: Aktiebolaget Tetra Pak · Inventors: Berlin, Bo; Nedstedt, Gert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An arrangement for the volume-controlled feed of a medium e.g. a liquid,in an outer flow system, comprising a movable pump piston and a metering chamber in connection or, connectable, to the flow system via a valve-controlled inlet and outlet for the intake and discharge respectively of the medium in time with the working cycles of the pump piston . To make possible the change between different desired feed volumes of the medium the arrangement has a wall element delimiting the volume of the metering chamber which is movable inside the metering chamber for the adjustment of the desired metering chamber volume.
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 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
- 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.