Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1980-05-19
1982-02-02
Lieberman, Allan
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 23, 260 4247, 260 4248, 26099813, 260 4249, C08K 322, C08L 6110
Patent
active
043138691
ABSTRACT:
A railroad brake shoe may include a friction element made by combining a number of materials so as to produce the required frictional characteristics for railroad braking. Heretofore, such friction elements commonly contained materials such as lead and asbestos. These two elements may have toxic characteristics under certain circumstances and therefore are suspect. To safely handle these suspect materials has thus become most difficult and expensive. By this invention, a composition friction element, which meets the requirements of the railroad industry, includes a substantially reduced suspect material content, yet is competitive in performance and cost with other known products.
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Amsted Industries Incorporated
Brosius Edward J.
Kostka Fred P.
Lieberman Allan
Schmitt John L.
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