Orifice device with safety shut-off for pressure regulators
CA 1105353 A · Owner: Singer Company (The) · Inventors: Bailey, James E.; Kanerva, Robert A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pressure regulator of the spring loaded diaphragm type having a chamber on one side of the diaphragm and provided with an inlet and an outlet separated by a transverse wall into which an orifice device is mounted for stopping the flow of gas through the regulator during excess flow or low outlet pressure conditions. During normal operation the valve element actuated by the diaphragm will co-act with the valve seat of the orifice device to regulate the thruput flow while, engaging a valve stem of the orifice device to hold the same open. The orifice device has a body through which the valve stem extends. A helical spring interconnects the body and the valve stem by being separately …
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 July 21, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 21, 1998.
- 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.