Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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LAVARDON RAYMOND
Original Assignee
LAVARDON RAYMOND
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Filing date
Publication date
Application filed by LAVARDON RAYMONDfiledCriticalLAVARDON RAYMOND
Priority to FR7208906ApriorityCriticalpatent/FR2176217A6/fr
Application grantedgrantedCritical
Publication of FR2176217A6publicationCriticalpatent/FR2176217A6/fr
G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
G05D16/00—Control of fluid pressure
G05D16/04—Control of fluid pressure without auxiliary power
G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
G05D16/109—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger with two or more pistons acting as a single pressure controller that move together over range of motion during normal operations