Method and apparatus for container pressure testing
CA 1090205 A · Owner: Rheem International, Inc. · Inventors: Conrad, William A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Containers having top head openings are inserted axially without prealignment into a test chamber which houses a sealing member having a sealing surface radially continuous about the container insertion axis. The container interior and the extent of the test chamber encircling the container are commonly pressureized and the sealing device is displaced to seal the container openings. The encircling test chamber extent is then vented to atmospheric pressure and pressure change in the test chamber is monitored.
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 November 25, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 25, 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.