Abstract: A process control scheme for use with an extruding apparatus for cooling and heating aerated or compressible compounds that are edible. Broadly, the process includes providing a mixture to an inlet of the extruding apparatus, monitoring the pressure profile across the extruding apparatus, moving the mixture through the extruding apparatus with at least one auger while subjecting the mixture to a thermo-dynamic process, automatically altering speed of the at least one auger if the pressure profile across the extruding apparatus is outside a predetermined range, and moving the mixture through an outlet of the extruding apparatus. The process may also include monitoring temperature of a thermodynamic liquid, monitoring the load of an auger motor, and automatically altering the temperature of the thermodynamic liquid and the load of the auger motor if one of either the temperature of the thermodynamic liquid and the load of the auger motor is outside a predetermined range.

Abstract: A process control scheme for use with an extruding apparatus for cooling and heating aerated or compressible compounds that are edible. Broadly, the process includes providing a mixture to an inlet of the extruding apparatus, monitoring the pressure profile across the extruding apparatus, moving the mixture through the extruding apparatus with at least one auger while subjecting the mixture to a thermo-dynamic process, automatically altering speed of the at least one auger if the pressure profile across the extruding apparatus is outside a predetermined range, and moving the mixture through an outlet of the extruding apparatus. The process may also include monitoring temperature of a thermodynamic liquid, monitoring the load of an auger motor, and automatically altering the temperature of the thermodynamic liquid and the load of the auger motor if one of either the temperature of the thermodynamic liquid and the load of the auger motor is outside a predetermined range.

Abstract: A light weight, bi-directional, computerized profilograph is disclosed. The bi-directional profilograph includes an odometer for measuring the horizontal movement of the profilograph in either a first direction or a second direction, and a road surface measuring device for measuring a road surface profile while the profilograph is traveling in either the first direction or the second direction. A computation device is also included for plotting the profile of the road surface versus the horizontal movement of the profilograph while the profilograph is traveling in either the first direction or the second direction.