Device for testing the surface quality of a vessel mouth
CA 1083247 A · Owner: Emhart Zurich S.A. · Inventors: Munz, Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for testing the mouth profile of glass or similar vessels by testing for the leakage around the mouth of gas injected into the bottle is improved by using a spring-shift sealing member on the test head to prevent imperfections being masked by the sealing member adapting to them and a subassembly, of the head carrying the sealing member is permitted a controlled amount of pivotal motion to allow it to adapt to vessel mouths having only a permissible tilt whilst detecting those having excessive tilt.
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 August 5, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 5, 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.