Droop compensated direct acting pressure regulator
CA 1302202 C · Owner: Fisher Controls International, Inc. · Inventors: Rice, Donald Duane; Hood, Mark Erby
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A self-operated droop compensated regulator includes a spring casing and a lower casing sandwiching a diaphragm. The lower casing has axially aligned inlet and outlet ports. A one piece cam stem and relief seat is mounted for movement with the diaphragm and includes a first cam surface for directly engaging a movable disk holder. The disk holder is movable in a straight line within an orifice tube that supports the valve seat. The cam surface moves the disk holder at a nonlinear rate with respect to the diaphragm. The orifice tube has an extension for providing a boost action to the diaphragm. A pressure relief mechanism is incorporated within the upper portion of the diaphragm. A bias …
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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 June 2, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 2009.
- 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.