Hilti Aktiengesellschaft

Gerald Felder

Rainer Batliner

Carmen Bier

Werner Sch&ouml;rghofer

A fastening element has a core zone () formed of a relatively hard carbon steel, a skin zone () located outwardly of the core zone () and formed of a first low-carbon austenitic steel alloyed with a first alloy metal, and an intermediate zone () provided between the core zone () and the skin zone () and formed of a second low-carbon steel having a smaller hardness than the steel the core zone () is formed of.

Fastening element

A method of coating of mass-produced bulk goods ( ) including loading the bulk goods ( ) into a rotatable drum ( ) through an opening ( ) formed in a side surface of the drum ( ), heating a coating material in coating apparatus ( ), having a spray gun ( ) and provided outside of the rotatable drum ( ); and thereafter, applying the heated coating material to the bulk goods ( ) with the spray gun ( ) through the drum opening ( ).

Growing community of inventors

Feldkirch, Austria

Gerald Felder