§
Luxuse
Patent Intelligence
Sign In
← Back to Patent Explorer
US5202087A Expired / Lapsed US ⏱️ 0.0 years remaining

Cement cooler grate alloy

Assignee: Carondelet Foundry Co
•
Filing: 1992-07-31
•
Granted: 1993-04-13
•
Expires: 2012-07-31
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Alloys are provided which consist essentially of: ______________________________________ CHROMIUM 11-20% By Weight NICKEL 3-10.5% MOLYBDENUM 1-4% CARBON 2-4.5% NITROGEN Up to about 0.25% SILICON 2.7-4% COPPER Up to about 4% COBALT Up to about 4% MANGANESE Up to about 4% ALUMINUM Up to about 0.2% Maximum COPPER + COBALT Up to 4% Total COPPER + COBALT + MANGANESE Up to 8% Total IRON & IMPURITIES Essentially Balance provided that NICKEL + 6-12.5% COPPER + COBALT is and further provided that NICKEL + COPPER + 6-15% COBALT + MANGANESE is ______________________________________

Inventors

  • 👤 John H. Culling

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 19:52
CPC Classifications
C; C22; C22C; C22C37/00; C22C37/06; C22C37/08

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 179 words
An aluminum-free heat resistant alloy having good high temperature hardness, consisting essentially of: ______________________________________ CHROMIUM 11-20% By Weight NICKEL 3-10.5% MOLYBDENUM 1-4% CARBON 2-4.5% NITROGEN Up to about 0.25% SILICON 2.7-4% COPPER Up to about 4% COBALT Up to about 4% MANGANESE Up to about 4% ALUMINUM Up to about 0.2% Maximum COPPER + COBALT Up to 4% Total COPPER + COBALT + Up to 8% Total MANGANESE IRON & IMPURITIES Essentially Balance provided that NICKEL + COPPER + COBALT is 6-12.5% and further provided that NICKEL + COPPER + COBALT + MANGANESE is 6-15% ______________________________________ ______________________________________ CHROMIUM 11-20% By Weight NICKEL 3-10.5% MOLYBDENUM 1-4% CARBON 2-4.5% NITROGEN Up to about 0.25% SILICON 2.7-4% COPPER Up to about 4% COBALT Up to about 4% MANGANESE Up to about 4% ALUMINUM Up to about 0.2% Maximum COPPER + COBALT Up to 4% Total COPPER + COBALT + MANGANESE Up to 8% Total IRON & IMPURITIES Essentially Balance provided that NICKEL + 6-12.5% COPPER + COBALT is and further provided that NICKEL + COPPER + 6-15% COBALT + MANGANESE is ______________________________________
Claim 2
Dependent Claim 179 words
An aluminum-free heat resistant alloy having good high temperature hardness, consisting essentially of: ______________________________________ CHROMIUM 11-20% By Weight NICKEL 3-10.5% MOLYBDENUM 1-4% CARBON 2-4.5% NITROGEN Up to about 0.25% SILICON 2.7-4% COPPER Up to about 4% COBALT Up to about 4% MANGANESE Up to about 4% ALUMINUM Up to about 0.2% Maximum COPPER + COBALT Up to 4% Total COPPER + COBALT + Up to 8% Total MANGANESE IRON & IMPURITIES Essentially Balance provided that NICKEL + COPPER + COBALT is 6-12.5% and further provided that NICKEL + COPPER + COBALT + MANGANESE is 6-15% ______________________________________ ______________________________________ CHROMIUM 11-20% By Weight NICKEL 3-10.5% MOLYBDENUM 1-4% CARBON 2-4.5% NITROGEN Up to about 0.25% SILICON 2.7-4% COPPER Up to about 4% COBALT Up to about 4% MANGANESE Up to about 4% ALUMINUM Up to about 0.2% Maximum COPPER + COBALT Up to 4% Total COPPER + COBALT + MANGANESE Up to 8% Total IRON & IMPURITIES Essentially Balance provided that NICKEL + 6-12.5% COPPER + COBALT is and further provided that NICKEL + COPPER + 6-15% COBALT + MANGANESE is ______________________________________
Claim 3
Dependent Claim 96 words
An alloy of claim 1 where: ______________________________________ CHROMIUM 11-18% By Weight NICKEL 4-10.5% MOLYBDENUM 2-3% CARBON 3-4% NITROGEN Up to about 0.25% SILICON 2.7-3.7% COPPER 1-4% COBALT Up to about 3% MANGANESE Up to about 3.5% ALUMINUM 0.2% Max COPPER + COBALT Up to about 4% COPPER + COBALT + Up to about 8% MANGANESE IRON - IMPURITIES Essentially Balance provided that when Manganese is less than about 1% NICKEL + COPPER + COBALT is 6-12.5% and further provided that when Manganese is greater than about 1% NICKEL + COPPER + 8.5-15% COBALT + MANGANESE ______________________________________
Claim 4
Dependent Claim 29 words
An alloy of claim 2 where copper is 1-4%, copper + cobalt is 1-4%, copper + cobalt + manganese is 1.5-5% + copper + cobalt + manganese is 9.5-13%.
Claim 5
Dependent Claim 26 words
An alloy of claim 2 where: ______________________________________ CARBON 3.19% By Weight SILICON 3.27% NICKEL 4.73% CHROMIUM 11.2% MOLYBDENUM 2.22% MANGANESE 3.75% COPPER 1.02% NITROGEN 0.04% ______________________________________
Claim 6
Dependent Claim 24 words
An alloy of claim 2 wherein: ______________________________________ CARBON 3.97% By Weight SILICON 2.88% NICKEL 8.92% CHROMIUM 14.4% MOLYBDENUM 3.02% MANGANESE 2.20% COPPER 2.05% ______________________________________
Claim 7
Dependent Claim 26 words
An alloy of claim 1 where: ______________________________________ CARBON 3.43% By Weight SILICON 3.58% NICKEL 9.61% CHROMIUM 13.1% MOLYBDENUM 2.98% MANGANESE .58% COPPER 2.30% NITROGEN .19% ______________________________________
Claim 8
Dependent Claim 24 words
An alloy of claim 2 where: ______________________________________ CARBON 3.04% By Weight SILICON 3.12% NICKEL 8.89% CHROMIUM 15.2% MOLYBDENUM 2.88% MANGANESE 2.28% COPPER .06% ______________________________________
Claim 9
Dependent Claim 24 words
An alloy of claim 2 where: ______________________________________ CARBON 3.54% By Weight SILICON 2.66% NICKEL 6.22% CHROMIUM 14.6% MOLYBDENUM 2.02% MANGANESE 1.28% NITROGEN .12% ______________________________________

References Cited (Backward Citations)

US2422948A Cited
SU779427A1 Cited
JPS58193343A Cited
US5106577A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1996-04-12 1996-10-12 1997-04-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2000-04-12 2000-10-12 2001-04-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2004-04-12 2004-10-12 2005-04-13 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag