Pneumatic devices with noise dampening
CA 1184851 A · Owner: Honeywell Inc. · Inventors: Haugen, Richard D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pneumatic device having a housing defining at least, two chambers with one of the chambers having a nozzle located therein, a diaphragm separating the two chambers main pressure, connected to one of the chambers an output line connected to one, of the chambers for providing an output signal having a value dependent upon the interaction between the nozzle and the diaphragm, and a dampening apparatus located within one of the chambers and touching the housing, the dampening apparatus being flexible for permitting movement of the diaphragm to control the output pressure in the output line and to dampen noise.
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 April 2, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 2, 2002.
- 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.