connected to a pressure source or a pressure pump other than a vacuum source by controlling the pressure supplied to the convey line path 100 via the valves 16 and 18 the same objective can be achieved for example a pressure is applied to both valves 16 and 18 to accelerate the product and draw the product into the conveyor line path 100 initially again the initial pressure is sufficiently high to avoid any dropout of the product after a steady flow of the product is obtained the pressure applied to the valve 18 is reduced terminated or supplied in an inverse direction such that a dead air space is formed in the terminal end of the conveyor line path 100 consequently the terminal velocity of the product is reduced while a sufficient inertia and velocity is maintained for the product to flow from the source container 12 to the terminal end in addition the pressure supplied via the valve 16 can also be adjusted while the pressure supplied via the valve 18 is altered alternatively only one valve is installed on the conveyor line path instead of incorporating two valves an initial pressure is supplied to the conveyor line path via the valve until a steady state flow of the product is obtained the initial pressure is sufficiently to avoid any dropout of the product while reaching a steady state flow of the product the pressure supplied via the valve is adjusted to a magnitude allowing a pressure gradient formed in a terminal end of the conveyor line path indeed each of the features and embodiments described herein can be used by itself or in combination.