Thermally controlled valve
CA 1323344 C · Owner: Gestra Aktiengesellschaft · Inventors: Foller, Werner; Klann, Holm
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Known valves continuously carry off the resulting medium. The smallest quantities produce a great deal of erosive wear at the shut-off point. The new valve is to be resistant to wear, namely even with small quantities. In the valve the spring is designed as a catch spring and is disposed in such a way that it occupies a lift position located between the extremes of its force-lift characteristic curve when the valve is closed. The valve is thermally controlled and contains an expansion capsule for example bellows or diaphragm capsule.
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 October 19, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 19, 2010.
- 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.