Motors: expansible chamber type – Fluid supply through diverse paths to single expansible chamber – Second path activated in response to pressure or flow in...
Patent
1980-12-01
1983-09-06
Nilson, Robert G.
Motors: expansible chamber type
Fluid supply through diverse paths to single expansible chamber
Second path activated in response to pressure or flow in...
91 31, 91446, 137110, F15B 1304
Patent
active
044022549
ABSTRACT:
A progressive pneumatic starter device delivers at its outlet an increasing pressure of low flow rate, then a working pressure at a high flow rate. The starter device is provided with a distributor member adapted to connect, in parallel with a calibrated bore, a channel of large section, when a pressure which is greater than a predetermined threshold and which is not derived from the outlet is applied to the distributor member. The starter device is advantageously placed upstream of a pneumatic switch to which it is directly associated for the purpose of shortening its channels for transfer of fluid.
REFERENCES:
patent: 2524114 (1950-10-01), Millat
patent: 3089512 (1963-05-01), Julien
patent: 3572363 (1971-03-01), Roach
patent: 3834621 (1974-09-01), Pacht
patent: 4011883 (1977-03-01), Petrimaux
patent: 4075928 (1978-02-01), Bitonti
patent: 4294113 (1981-10-01), Sprott
Boutielle Daniel
Nicolas Michel
Petrimaux Eric
Prudhomme Pierre
Drucker William A.
La Telemecanique Electrique
Nilson Robert G.
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