3-methacryloxy- and 3-acryloxyisobutylalkoxysilanes of the general formula . The apparatus includes a processor for calculating elapsed time of movement of the runners and their finishing order from the reflected signals received by the detector. The product through channel comprises a rectilinear product, passage segment in which the valve seat is disposed and in which the valve and the valve rod extend axially and in full. The transmitter set this parameter based on the time data has spent in a transmit queue assigned to the constant bit rate connection at the transmitter.