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Planetary Gear Transmission Systems Or Components > Fluid Drive Or Control Of Planetary Gearing > Fluid Controlled Mechanical Clutch Or Brake > Speed Responsive Control > Safety Device Safety DeviceSafety Device patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.01/25/07 - 20070021261 - Hydraulic control apparatus and hydraulic control method of vehicular automatic transmission A hydraulic control apparatus of a vehicular automatic transmission has a plurality of hydraulic friction engagement devices that are selectively engaged and released to establish a plurality of forward speed change stages of different speed change ratios. The forward speed change stages are achieved through engagement of predetermined friction engagement ... 01/25/07 - 20070021260 - Control apparatus of vehicular automatic transmission At the time of a failure in the second group of engagement devices, the manner of input of oil pressures to a fail-safe valve group is changed via a priority degree switching valve on the basis of the state of engagement of engagement devices of the first group in such ... 02/09/06 - 20060030446 - Vehicle automatic transmission control apparatus with fail-safe arrangement A control apparatus for controlling a vehicle automatic transmission including (i) a first coupling device to be engaged for establishing an emergency gear position and (ii) a second coupling device to be released for establishing the emergency gear position. The control apparatus includes: (a) first and second controller valves for ... ### FreshPatents.com Support |