Liquid measuring devices
CA 1190411 A · Owner: Interag · Inventors: Phillips, Douglad S.M.; Millar, Thomas D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for measuring flow and/or volume of a liquid preferably milk in which the milk is passed from a passageway through a gap which is long vertically hut narrow in width so that a pool is formed in the passageway the, height of milk in the pool being a measure of the rate of flow of the milk. The levels maintained over predetermined intervals of time are integrated to give volume measurements. Measurements of levels are made by providing a resistor in the passageway so that the impedance is changed according to the liquid level and measuring such impedance. - 1 -
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 July 16, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 16, 2002.
- 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.