Abstract: A dental device is disclosed comprising a dental handpiece, a controller including a microcontroller and a foot control pressure sensor, and a foot pedal. The foot pedal is in communication with the controller and controls the dental handpiece. The dental device is arranged to configure between at least two of a speed limiting mode, a feathering mode, and a standard mode. In the speed limiting mode, the controller proportions air flow so as to limit the speed of the dental handpiece to a specified speed. In the feathering mode, the foot pedal proportions air to the controller which then transmits the air to the dental handpiece such that the foot pedal controls the speed of the dental handpiece. In the standard mode, the speed of the dental handpiece is set without limiting by the controller and without feathering by the foot pedal.

Abstract: A system for use in a gasoline station for automatic enablement of fuel dispensing means from the fuel island by a customer credit card comprising credit card reader means, customer operable keyboard means, display means, output channel means, and first processor control means, together with attendant control means for use by the attendant of the gas station, the attendant control means being manually operable by the attendant for enabling a selected fuel dispensing means, thereby providing an indication to the attendant of the value of dispensed fuel made by the customer.