Pressure-resistant tank
CA 1309669 C · Owner: Gerhard, Helmut · Inventors: Gerhard, Helmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pressure-resistant tank has a jacket composed of a plurality of parallel extending part-cylindrical shells (10) with any adjacent pair of shells (10) being interconnected by a tubular longitudinal bar (15) extending along the bead area formed between said adjacent shells. Opposite longitudinal bars (15) are interconnected by tubular tie rods (18) which traverse the interior of the tank. Reinforcing pipe sections (20) are inserted into the longitudinal bars (15) in the areas where the tie rods (18) are joined to the longitudinal bars (15).
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 3, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 3, 2009.
- 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.