Tivelli
Marco Mario Tivelli, Bergamo IT
Patent application number | Description | Published |
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20080314481 | High-Strength Steel for Seamless, Weldable Steel Pipes - A low-alloy steel containing, by weight percent, C 0.03-0.13%, Mn 0.90-1.80%, Si≦0.40%, P≦0.020%, S≦0.005%, Ni 0.10-1.00%, Cr 0.20-1.20%, Mo 0.15-0.80%, Ca≦0.040%, V≦0.10%, Nb≦0.040%, Ti≦0.020% and N≦0.011% for making high-strength, weldable steel seamless pipe, characterized in that the microstructure of the alloy steel is a mixture of bainite and martensite and the yield stress is at least 621 MPa (90 Ksi). | 12-25-2008 |
Sergio Tivelli, Cividate Al Piano (bg) IT
Patent application number | Description | Published |
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20110030825 | QUICK COUPLING WITH SAFETY CATCH DEVICE - A quick coupling ( | 02-10-2011 |
Sergio Tivelli, Cividate Al Piano IT
Patent application number | Description | Published |
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20090315325 | Female quick coupling fitting element for pipes - A female element ( | 12-24-2009 |