Patent ID: 6095207
Filing Date: 2000-08-01
Classification: B60K

Abstract:
Sealing device for a filling opening of a tank, suitable for sealing the opening against the escape of fuel fumes when filling a stationary or mobile tank, the filling opening connecting via a filling tube to the tank, comprising:a seal located in the vicinity of the filling opening and being positioned in the filling tube between the filling opening and the tank, the seal having a sealing position wherein the seal abuts an object, including a filling device inserted into the filling opening;a first sensor of a position of the filling device between the filling opening and the seal, a second sensor of a position of the filling device between the seal and the tank; anda control unit for automatically controlling the seal between an inactive resting position in response to a signal of the first sensor and an active sealing position in response to a signal of the second sensor, wherein, in the active sealing position, the seal enlarges to contact the filling device and, in the inactive sealing position, the seal retracts to clear the filling tube.