Process and apparatus for testing a hollow body
CA 1340901 C · Owner: Wilco Ag · Inventors: Lehmann, Martin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is directed to a test method and test apparatus for testing hollow bodies. The method comprises loading a predetermined reference volume with a predetermined pressure of a gas; connecting the predetermined reference volume loaded with tine predetermined pressure to a volume of the hollow body to form a composite volume; and measuring a pressure resulting in the composite volume as a measure of the volume of the hollow body. The test apparatus comprises a compartment, a pressure source connected to the compartment a, pressure source arrangement to apply pressure dependent on the volume of the body to the chamber, a reference chamber controllably connected to the test …
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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 February 15, 2000. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 15, 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.