Ụlọ ọrụ na-emepụta ihe ndị dị ọcha

E guzobere Standard Sanitary mbụ mgbe James West Arrott nke ụlọ ọrụ James West Arrot Insurance na Pittsburgh, Pennsylvania weghaara ụlọ ọrụ hooper dara ogbenye nke na-enweghị ike ịkwụ ụgwọ ịnshọransị ha. Ya na Francis Torrance (ha nwere ndị ikwu ka ha lụrụ ụmụnne nwanyị Waddell) ha mụtara banyere enamelization nke porcelain na Europe ma weta usoro ahụ na America site na ibu uzọ ọhụrụ nwa na-emetụ ememe ncheta ihe nkiri nri ụtụtụ mee bathtub na mgbe ahụ ụlọ mposi na sinks. Ọ bụ na ngwụcha afọ 1890 ka e jikọtara Standard Sanitary na ndị na-emepụta paịpụ mmiri ndị ọzọ iji guzobe Standard Sanitory Manufacturing Company.

Standard Sanitary Manufacturing Company bụ onye America na-emepụta ihe eji ngwa soro na eme ụlọ ịsa ahụ. E guzobere ya na 1875 site na njikọta nke Ahrens na Ott Manufacturing Company, Standard Manufacturing Company. Ọ nọ n'ọkwa a, na ndị ọzọ, ruo 1934.

N'afọ 1929, ụlọ ọrụ ahụ jikọtara ya na American Radiator Company iji guzobe American Radiator na Standard Sanitary Corporation.