Warning device for a compressed air breathing apparatus
CA 2379697 A1 · Owner: Hanisch, Thomas · Inventors: Hanisch, Thomas; Kling, Peter; Haase, Torsten
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a warning device for a compressed air breathing apparatus comprising a mechanical manometer (3) and a pressures sensor (4) fixed in the compressed air line, said sensor being connected to a microprocessor (6) by means of a signal processing part (5). The microprocessor is connected to a movement indicator (9) a temperature sensor , (8) and a real-time clock (10) and is also connected to a sound emitter (12) and a display (7). The pressure sensor activates the electronic system of the apparatus independently of the user and triggers an alarm when a given minimal pressure has been reached or calculates and displays regardless of the size , of the tank, 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
- Filed July 18, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 18, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 18, 2022.
- 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.