Converter valve
CA 1053749 A · Owner: Siemens Aktiengesellschaft · Inventors: Schraudolph, Manfred; Weber, Jurgen; Schilling, Kurt
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A converter valve which is constructed from modular elements is disclosed. Each of these modular elements comprises a group of thyristors arranged in side-by-side relationship and the drive means and circuit component group associated with such thyristor group. A metallic shield surrounds the thyristor group and its associated drive means and a portion of its associated component group. The shield in turn, is supported, within a metallic pressure tube which has both its ends closed off by bulkheads and is adapted to receive SF6 gas. The aforesaid bulkheads may be separate connecting members which, in addition may also be designed, as nodal elements and mechanical support points. The …
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 May 1, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 1, 1996.
- 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.