Abstract: The invention relates to a device for the detection of an obstacle (43) in relation to a controlled-movement panel (3), including: deformable tubular means or a flexible tube (31) for the propagation of low-frequency dynamic pressure waves; means for transmitting (40a) and receiving (40b) the low-frequency dynamic pressure waves; and means for processing (9) said dynamic pressure waves, which, upon detection of an obstacle, are designed to allow the panel (3) to be moved in relation to the obstacle (43), the panel being stopped, lowered or re-opened.

Abstract: The invention relates to a device for the detection of an obstacle (43) in relation to a controlled-movement panel (3), including: deformable tubular means or a flexible tube (31) for the propagation of low-frequency dynamic pressure waves; means for transmitting (40a) and receiving (40b) the low-frequency dynamic pressure waves; and means for processing (9) said dynamic pressure waves, which, upon detection of an obstacle, are designed to allow the panel (3) to be moved in relation to the obstacle (43), the panel being stopped, lowered or re-opened.

Abstract: An electronic refueling transaction receipt is generated at a fuel dispenser position. The electronic receipt can be wirelessly communicated to a user device associated with the refueling customer. The electronic receipt can also be communicated to a remote location such as a network address or e-mail account. For this purpose, the user device communicates to the fuel dispenser a destination address specifying the location where the dispenser should transmit the virtual receipt, such as an e-mail address. The user device can direct the execution of remote management functions involving the fuel dispenser. The communication exchange to facilitate the management operations includes the use of a wireless link between the dispenser and user device. The remote management tasks include diagnostics and calibration.

Abstract: The present invention relates to an apparatus and method for measuring the volume of a flowing media. The apparatus includes a pulse sensor and a temperature sensor wherein the temperature sensor and the pulse sensor are utilized to provide data for calculating the volume of the flowing media.