Conveyors: power-driven – Conveyor section – Endless conveyor
Reexamination Certificate
2006-03-10
2009-02-17
Bidwell, James R (Department: 3651)
Conveyors: power-driven
Conveyor section
Endless conveyor
C198S850000, C059S004000, C059S005000, C148S319000
Reexamination Certificate
active
07490715
ABSTRACT:
Link chain with improved wear resistance as well as method of manufacturing such a link chain. For manufacturing of a link chain, several chain links (39; 40) comprising link pins (41) or plates provided with coatings being applied by means of a PVD process are assembled. The coatings consist of hard material layers and/or slide material layers. It is possible that no PVD coating is provided on a transition zone (1a;4) of elements (41; 42) used for the manufacturing of the chain links predetermined for connection with another element (42; 41).
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Girg Helmut
Jörgensen Gerald
Kohn Martin
Pintoiu Stefan
Schachtner Bernhard
Baker & Botts L.L.P.
Bidwell James R
Joh. Winklhofer & Soehne GmbH & Co. KG
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