Patents by Inventor Terry A. DeBold
Terry A. DeBold has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5601664Abstract: A ferritic, stainless steel alloy containing in weight percent about 0.05% max. C, 2.0% max. Mn, 0.70-1.5% Si, 0.1-0.5% S, 15-20% Or, 0.80-3.00% Mo, 0.10-1.0% Nb, 0.06% max. N, and the balance iron and impurities, provides a unique combination of magnetic properties, corrosion resistance, and machinability.Type: GrantFiled: November 8, 1995Date of Patent: February 11, 1997Assignee: CRS Holdings, Inc.Inventors: Theodore Kosa, Stephen M. Lukes, Douglas W. Dietrich, Terry A. DeBold
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Patent number: 5556594Abstract: An age hardenable nickel base chromium, molybdenum, alloy as well as intermediate products and articles made therefrom are disclosed which, in the solution treated and age hardened condition, have a 0.2% yield strength greater than 100 ksi combined with resistance to pitting and crevice corrosion and to stress corrosion cracking in chloride and sulfide environments at elevated temperatures up to about 500.degree. F. without requiring working below the recrystallization temperature of the alloy. Broad and preferred ranges are disclosed as follows:______________________________________ Broad (w/o) Preferred (w/o) ______________________________________ C 0.1 Max. 0.03 Max. Mn 5 Max. 2 Max. Si 1 Max. 0.5 Max. P 0.03 Max. 0.015 Max. S 0.03 Max. 0.010 Max. Cr 16-24 18-22 Mo 7-12 7.5-11 W 4 Max. -- Nb 2-6 2.75-4.25 Ti 0.50-2.5 0.75-1.5 Al Trace-1 0.05-0.35 B 0.02 Max. 0.001-0.006 Zr 0.50 Max. 0.08 Max. Co 5 Max. -- Cu 0-3 0.5 Max. N 0.04 Max. 0.01 Max. Fe 20 Max.Type: GrantFiled: May 30, 1986Date of Patent: September 17, 1996Assignee: CRS Holdings, Inc.Inventors: Richard B. Frank, Terry A. DeBold, Sunil Widge, James W. Martin
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Patent number: 5091024Abstract: A ferritic alloy, having an improved combination of magnetic properties and corrosion resistance, contains, in weight percent, about______________________________________ % ______________________________________ Carbon 0.03 max. Manganese 0.5 max. Silicon 0.5 max. Phosphorus 0.03 max. Sulfur 0-0.5 Chromium 10-13.0 Molybdenum 0-1.5 Nitrogen 0.05 max. Titanium 0.01 max. Aluminum 0.01 max. ______________________________________and the balance is essentially iron. The alloy, and articles made therefrom, provide higher saturation induction than known corrosion resistant, magnetic alloys.Type: GrantFiled: June 27, 1990Date of Patent: February 25, 1992Assignee: Carpenter Technology CorporationInventors: Terry A. DeBold, Theodore Kosa, Millard S. Masteller
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Patent number: 4994122Abstract: A ferritic alloy, having an improved combination of magnetic properties and corrosion resistance, contains, in weight percent, about______________________________________ % ______________________________________ Carbon 0.03 max. Manganese 0.5 max. Silicon 0.5 max. Sulfur 0-0.5 Chromium 2-13.0 Molybdenum 0-1.5 Nitrogen 0.05 max. ______________________________________and the balance is essentially iron. The alloy, and articles made therefrom, provide higher saturation induction than known corrosion resistant, magnetic alloys.Type: GrantFiled: July 13, 1989Date of Patent: February 19, 1991Assignee: Carpenter Technology CorporationInventors: Terry A. DeBold, Theodore Kosa, Millard S. Masteller
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Patent number: 4832765Abstract: A stainless duplex ferritic-austenitic steel with improved corrosion resistance. The steel consists essentially of about: 0.03 w/o Max. carbon, 3.0 w/o Max. manganese, 1.0 w/o Max. silicon, 26.0 to 29.0 w/o chromium, 3.5 to 5.2 w/o nickel, 3.5 w/o Max. molybdenum, 0.15 w/o Min. nitrogen and the balance essentially iron. The steel preferably contains about 0.17 to 0.35 w/o nitrogen for improved pitting resistance and for increased austenite content. Welds of the steel preferably contain at least about 17% austenite in the as-welded condition for improved pitting and intergranular corrosion resistance.Type: GrantFiled: February 17, 1987Date of Patent: May 23, 1989Assignee: Carpenter Technology CorporationInventors: Terry A. DeBold, David A. Englehart, James W. Martin
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Patent number: 4818484Abstract: A large, austenitic, non-magnetic, stainless steel, alloy article which has been significantly warm worked between about 1500 F. and 1650 F. but not subsequently annealed, which has a 0.2% yield strength of at least about 90 ksi, and which, when formed into a U-bend, does not undergo stress corrosion cracking within about 700 hours in boiling saturated aqueous sodium chloride containing 2 weight percent (w/o) ammonium bisulfite. The alloy of the article consists essentially of about:______________________________________ Elements w/o ______________________________________ C 0.1 Max. Mn 1-11 Si 0.6 Max. Cr 18-23 Ni 14-25 Mo 2.5-6.5 Cu 2 Max. B .01 Max. N 0.15 Min. C + N .gtoreq. ##STR1## ______________________________________and the balance is essentially iron. A preferred alloy for this article contains about: ______________________________________ Elements w/o ______________________________________ C .02 Max. Mn 3.0-9.0 Si 0.5 Max. Cr 18-23 Ni 15-22 Mo 2.5-6.5 N 0.20 Min. 3 Mo + Cr .gtoreq. 29.Type: GrantFiled: November 26, 1986Date of Patent: April 4, 1989Assignee: Carpenter Technology CorporationInventors: Terry A. DeBold, John H. Magee, Jr., Norman B. Schmidt
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Patent number: 4554028Abstract: A large, austenitic, non-magnetic, stainless steel, alloy article which has been significantly warm worked between about 1500.degree. F. and 1650.degree. F. but not subsequently annealed, which has a 0.2% yield strength of at least about 90 ksi, and which, when formed into a U-bend, does not undergo stress corrosion cracking within about 700 hours in boiling saturated aqueous sodium chloride containing 2 weight percent (w/o) ammonium bisulfite. The alloy of the article consists essentially of about:______________________________________ Elements w/o ______________________________________ C 0.1 Max. Mn 1-11 Si 0.6 Max. Cr 18-23 Ni 14-25 Mo 2.5-6.5 Cu 2 Max. B .01 Max. N 0.15 Min. C + N .gtoreq. ##STR1## ______________________________________and the balance is essentially iron. a preferred alloy for this article contains about: ______________________________________ Elements w/o ______________________________________ C .02 Max. Mn 3.0-9.0 Si 0.5 Max. Cr 18-23 Ni 15-22 Mo 2.5-6.5 N 0.20 Min. 3Mo + Cr .gtoreq.Type: GrantFiled: December 13, 1983Date of Patent: November 19, 1985Assignee: Carpenter Technology CorporationInventors: Terry A. DeBold, John H. Magee, Jr., Norman B. Schmidt
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Patent number: 4487744Abstract: An austenitic stainless corrosion resistant alloy and articles made therefrom having good resistance to pitting and crevice corrosion in oxidizing chloride-bearing media combined with resistance to general corrosion and to intergranular corrosion in oxidizing media, containing in weight percent about______________________________________ w/o ______________________________________ C 0.06 Max. Mn 1.4 Max. Si 0.9 Max. P 0.035 Max. S 0.035 Max. Cr 20-26 Ni 34-44 Mo 3-<5.1 Cu 0.1-<3.1 N 0.4 Max. B 0.005 Max. Ce + La 0.4 Max. Added Nb 1 Max. Ti 0.5 Max. ______________________________________and the balance iron. The amount of nitrogen is not greater than that which can be retained in solution. When present niobium plus titanium ranges upward from a minimum which is sufficient to combine stoichiometrically with the amount of carbon present in excess of 0.025 w/o. In this composition the elements chromium, nickel, molybdenum and copper are balanced so that the value of Correlation I is equal to or less than 1.Type: GrantFiled: July 28, 1982Date of Patent: December 11, 1984Assignee: Carpenter Technology CorporationInventors: Terry A. DeBold, Douglas G. Frick, John S. Kutzamanis
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Patent number: 4371394Abstract: A corrosion resistant austenitic stainless steel alloy and articles made therefrom consisting essentially in weight percent of______________________________________ (w/o) ______________________________________ C 0.03-0.1 Mn 4-11 Si 0.6 Max. Cr 20-23 Ni 14-18 Mo 4.8-5.6 B 0.01 Max. Ce + La 0.4 Max. Al 0.1 Max. C + N 0.23 Min. ______________________________________in which nitrogen ranges from a minimum of 0.15 w/o to no more than the amount that can be retained in solid solution, the balance being essentially iron, and the elements being balanced so that cold rolled annealed specimens prepared with a crevice and tested in accordance with ASTM G48-76 in 10 w/o FeCl.sub.3 .multidot.6H.sub.2 O at 50.degree. C. for 72 hours have a weight loss of less than 0.3 gram. An embodiment that is particularly well suited for making autogeneously welded articles, e.g.Type: GrantFiled: November 21, 1980Date of Patent: February 1, 1983Assignee: Carpenter Technology CorporationInventors: Michael Henthorne, Robert J. Yinger, Terry A. DeBold
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Patent number: 4201575Abstract: An austenitic stainless corrosion resistant alloy consisting essentially in weight percent (w/o) of______________________________________ Broad-(w/o) Preferred-(w/o) ______________________________________ C 0.06 Max. 0.015-0.025 Mn 1.00 Max. 0.50 Max. Si 0.50 Max. 0.40 Max. P 0.03 Max. 0.03 Max. S 0.03 Max. 0.005 Max. Cr 22-26 23.5-24.5 Ni 32.5-37 32.5-34.5 Mo 5-6.7 5.5-6.2 Cu 1.0-4 3.0-3.5 B 0.005 Max. 0.0015-0.0035 Nb 1 Max. 0.15-0.25 N 0.4 Max.* 0.05 Max. Ce + La 0.4 Max.** 0.3 Max.** ______________________________________ *OR the limit of solubility. **Amount added as misch metal.The balance is iron and incidental impurities. The alloy is useful for the production of parts requiring good resistance to corrosion. It has good resistance to pitting and stress corrosion when exposed to chlorides and has good resistance to oxidizing media. The alloy is particularly useful as parts for fume scrubbers and in phosphoric acid plants.Type: GrantFiled: May 18, 1979Date of Patent: May 6, 1980Assignee: Carpenter Technology CorporationInventors: Michael Henthorne, Terry DeBold