Patent ID: 8382187

Claim:
A gas cap actuator system ( 10 , 10 ′) which actuates automatic dosing and opening of a gas cap ( 26 , 26 ′, 26 ″, 74 ) on a filling tube ( 34 , 52 ), the system having: a. a gas cap ( 26 , 26 ′, 26 ″, 74 ); and b. a cap actuator ( 16 , 20 , 48 , 48 ′, 72 ) actuated by a non-manual power source ( 12 , 12 ′) and which interfaces with the gas cap ( 26 , 26 ′, 26 ″, 74 ) via an interface ( 39 , 76 ) in a manner so as to be able to impart relative rotation between the gas cap and a fixing element ( 20 , 78 ), so as to draw the cap into engagement with the filling tube ( 34 , 52 ), the interface and the gas cap being manually disengageable so as to permit manual use at the will of the operator.