MAAC's design heritage was born by the Chicago based Comet Industries. Started by Bob Kostur in the early 1950's, Comet developed and named what is known today as the standard thermoforming sequence techniques. Comet's thermoforming machines commanded 75% of the US market place up to 1970. Comet pioneered and wrote the design standards for motorized platens, gas & electric ovens, fully automatic sequencing, all aluminum clamp frame, pressure forming and twin sheet pressure forming.