ace ▁in ▁the ▁world . ▁▁ ▁Sch ack ▁hab il itated ▁in ▁ 1 9 5 1 ▁at ▁the ▁Techn ische ▁Hoch schule ▁( Te chn ical ▁University ) ▁in ▁A achen ▁and ▁worked ▁there ▁as ▁a ▁lect urer ▁for ▁over ▁ 1 5 ▁years . ▁In ▁ 1 9 5 9 , ▁he ▁was ▁appointed ▁as ▁ext rac urr icular ▁professor . ▁▁ ▁In ▁ 1 9 7 0 , ▁Alfred ▁Sch ack ▁designated ▁his ▁son ▁Kur tre iner ▁Sch ack ▁as ▁sole ▁man aging ▁director ▁of ▁his ▁company . ▁In ▁ 1 9 9 5 , ▁Re ku per ator ▁K G , ▁Dr .- In g . ▁Sch ack ▁& ▁Co . ▁merged ▁with ▁Schmidt ’ sche ▁He iss d ampf - G es ellschaft ▁m b H ▁into ▁SH G ▁Sch ack ▁GmbH . ▁Today , ▁the ▁company ▁is ▁world wide ▁operating ▁under ▁the ▁name ▁S CH M ID TS CH E ▁S CH ACK ▁| ▁AR V OS . ▁ ▁Books ▁▁ ▁Re ku per ator ▁K G : ▁ 5 0 ▁Jahre ▁Re ku per ator ▁K G , ▁Dr . ▁Ing ▁Sch ack ▁& ▁Co ., ▁Düsseldorf ▁ 1 9 8 1 ▁ ▁References ▁ ▁External ▁links ▁▁ ▁Kraft - ▁und ▁D ampf mas ch inen ▁ ▁Fir men ver zeichnis ▁Chem ie ▁ ▁E intrag ▁Alfred ▁Sch ack , ▁im ▁Al ma ▁M ater ▁Aqu ensis , ▁Son der band ▁ 1 8 7 0 – 1 9 9 5 , ▁S . ▁ 7