Mechanically operated dispensing device with means for increasing discharge pressure and dispensing time
CA 1079237 A · Owner: James D. Pauls Ltd. · Inventors: Antenore, Ronald L.; Capra, Nicholas G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A dispensing device for discharging material under pressure, includes at least one accumulating chamber for receiving and accumulating material to be dispensed and operable to discharge the material under pressure over a sustained period of time for use as desired and at least, one expansible chamber operable to incrementally move material from a container into the accumulating chamber for storage of the material under pressure whereby a prolonged, pressurized discharge of the material can be obtained. - 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 June 10, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 10, 1997.
- 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.