Fluid handling – Convertible – Unit orientable in a single location between plural positions
Patent
1990-11-06
1991-10-15
Cohan, Alan
Fluid handling
Convertible
Unit orientable in a single location between plural positions
137489, 137488, G05D 1606
Patent
active
050565508
ABSTRACT:
A pilot regulator has a main housing with a sensing chamber and a separate receiving chamber. The sensing chamber connects to the system for sensing. The receiving chamber is adapted to connect its inlet to the system upstream of the pilot and to the load line of the valve to be controlled and to connect its outlet downstream thereof, a cartridge containing a complete valve is removably received in the receiving chamber in position to control flow therethrough between the inlet and outlet. And a mechanism is disclosed for opening and closing the valve in response to sensing chamber pressure changes. The cartridge with its valve are removable as a unit for repair, mode change or replacement without disturbing connections to system.
REFERENCES:
patent: 3561468 (1971-02-01), Sugden
patent: 3572359 (1971-03-01), Weise
patent: 3878859 (1971-04-01), Grob
Cohan Alan
Finch Robert R.
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