Patents Assigned to A. Finkl & Sons Co.
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Patent number: 6972058Abstract: A method of heat treating tool steel by using a high intensity infrared heating source, said source being tungsten halogen heat lamps which operate in air, non-air and/or vacuum environments, and a tool steel heat treat system which includes a furnace containing said tungsten halogen lamp means, a lining of a reflective metal and, preferably, support structure for the tool steel workpieces which are composed of ceramic or other high melting point material.Type: GrantFiled: December 16, 1997Date of Patent: December 6, 2005Assignee: A. Finkl & Sons Co.Inventor: Algirdas A. Underys
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Patent number: 6398885Abstract: A method and apparatus for tempering the shank portion only of die blocks which comprises subjecting the shank portion of a die block or other large metal part to electrical energy derived from induction heating or infrared heating to a controlled depth, preferably just sufficiently deep to temper the shank portion but not sufficiently deep to temper the hardened working portion of the part.Type: GrantFiled: September 25, 1998Date of Patent: June 4, 2002Assignee: A. Finkl & Sons Co.Inventors: Charles W. Finkl, Algirdas A. Underys
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Patent number: 6325203Abstract: A method and apparatus for forming a steady state stream of machine tool chips in a chip takeaway system which includes a hopper having finger-like projections which extend toward the center of the hopper at or above the level of auger means to relieve packing forces on chips beneath the projections, and a clockwise/counter-clockwise, rotate/pause method of auger operation which further reduces the tendency for chips to pack.Type: GrantFiled: October 6, 1999Date of Patent: December 4, 2001Assignee: A. Finkl & Sons Co.Inventor: John Guliana
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Patent number: 6110300Abstract: A tool for glass molding operations, particularly television tubes, having high oxidation resistance so that ice imperfections on a formed workpiece are eliminated or drastically reduced, said tool having the following approximate composition by weight percent: C 0.23-0.38, Mn 0.40-1.00, P 0.040 max, S 0.030 max, Si 0.00-1.20, Ni 1.0-3.0, Cr 14.0-20.0, Mo 0.25-1.00, V 0.10 max, Cu 0.50-1.50, Al 0.50-1.Type: GrantFiled: April 7, 1997Date of Patent: August 29, 2000Assignee: A. Finkl & Sons Co.Inventors: Guy A. Brada, Algirdas A. Underys, Jesse Adamson
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Patent number: 6019938Abstract: A die casting die and a Cr--Mo--V steel therefore having an ultimate strength of 190,000 psi, a yield strength of 160,000, a tempering response of 400 BHN at a tempering temperature of 1150.degree. F. and final gas contents of N--70 ppm, O--30 ppm and H--about 1.0 following a double vacuum melting process which includes vacuum arc degassing and vacuum arc remelt followed by annealing and heating in two stages to 1885.degree. F., soaking, rapid quenching, tempering twice and stress tempering.Type: GrantFiled: April 23, 1998Date of Patent: February 1, 2000Assignee: A. Finkl & Sons Co.Inventors: Algirdas A. Underys, Guy A. Brada
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Patent number: 5972130Abstract: A steel and tool made therefrom which in a tempered condition of 388 BHN or softer has high strength, high wear resistance together with excellent toughness in the range of 15% elongation and 35 ft-lbs. charpy and having the following composition:______________________________________ C .33-.39 Mn .50-.70 P .025 max. S .025 max. Si .40-.60 Ni 1.05-1.35 Cr 1.33-1.68 Mo .40-.60 Cu .60-.90 Al .010-.Type: GrantFiled: July 28, 1997Date of Patent: October 26, 1999Assignee: A. Finkl & Sons Co.Inventors: Algirdas A. Underys, Charles W. Finkl
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Patent number: 5888450Abstract: Fabricated components, such as plastic injection molds, forging tools and machine components formed from a fine grained, low phosphorus, high hardness, high wear resistance, high hardenability, good machineability and high polishability, low alloy steel which is suitable for applications at elevated temperatures and at room temperatures, and an alloy steel having the following composition,______________________________________ C .45-.60 Mn .75-.95 P .017 max S .025 max Si .15-.35 Ni .60-2.00 Cr .85-1.30 Mo .40-.85 V 0-.30 Al 0-.030 Ti .003-.020 N.sub.2 40-90 ppm ______________________________________the S, V and Al all being present in at least a small but effective amount, said steel and fabricated parts made therefrom being characterized by austenite grain boundaries being pinned with titanium nitrides.Type: GrantFiled: June 26, 1997Date of Patent: March 30, 1999Assignee: A. Finkl & Sons Co.Inventors: Charles W. Finkl, Algirdas A. Underys
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Patent number: 5827376Abstract: A plastic industry prototype mold and steel therefor having machining speed and weldability characteristics competitive with aluminum alloys, and a method of manufacture thereof, said composition containing C 0.05-0.35, Mn .50-1.50, P 0.025.times., S 0.100.times., Si 0.50.times., Ni 0.35-0.75, Mo 0.30-0.70, Cu 0.75-1.50, Al 0.20.times. and Fe bal.Type: GrantFiled: July 19, 1996Date of Patent: October 27, 1998Assignee: A. Finkl & Sons Co.Inventor: Algirdas A. Underys
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Patent number: 5720829Abstract: A maraging type magnetic hot work implement, such as a forging die, or a tool, such as a turbine blade, having Ni.sub.3 Mo, Ni.sub.3 Al and, preferably, Ni.sub.3 Ti strengthening precipitates dispersed uniformly, and being substantially Co free, said product having the following approximate composition by weight percent:______________________________________ C less than .20 Mn .80 max P .015 max S .010 max Si .15-.35 Ni 6.00-16.00 Cr 6.00-14.00 Mo 2.00-6.00 V 0.3-.15 Ti 0.00-4.00 Al .20-8.00 Fe balance together with incidental impurities and other elements not significantly adversely affecting performance ______________________________________and methods of manufacture thereof.Type: GrantFiled: February 2, 1996Date of Patent: February 24, 1998Assignee: A. Finkl & Sons Co.Inventors: Charles W. Finkl, Guy A. Brada, Algirdas A. Underys
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Patent number: 5496516Abstract: A dual purpose steel having high strength, high hardness, high wear resistance, high hardenability and easy machining and therefore being equally well suited for (a) elevated temperature closed die forging (b) room temperature machine part applications, such as gears, pinions, etc.Type: GrantFiled: April 4, 1994Date of Patent: March 5, 1996Assignee: A. Finkl & Sons Co.Inventors: Charles W. Finkl, Algirdas A. Underys
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Patent number: 5415834Abstract: A warm forging implement having high tensile strength, high abrasion resistance, high impact strength and high ductility and a composition within the following ranges:______________________________________ C .28-.36 Mn .40-1.00 P Usual S Usual Si up to .35 Ni 1.65-3.40 Cr .80-1.30 Mo .40-1.00 V .05-.15 ______________________________________and a method of manufacture thereof which includes either single or double vacuum treatment, the second vacuum treatment being vacuum arc remelting.Type: GrantFiled: January 19, 1994Date of Patent: May 16, 1995Assignee: A. Finkl & Sons Co.Inventors: Charles W. Finkl, Algirdas A. Underys
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Patent number: 5364588Abstract: A 12 percent stainless-type steel having high polishability characterized by high carbon, moderate Mo and a combination of V and Nb not to exceed about 0.1 percent, and a method of production which includes forming a vacuum arc remelt electrode by means of vacuum arc degassing treatment and protective pouring.Type: GrantFiled: October 26, 1992Date of Patent: November 15, 1994Assignee: A. Finkl & Sons Co.Inventors: Charles W. Finkl, Guy A. Brada, Algirdas A. Underys
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Patent number: 5252120Abstract: A method and apparatus for producing high quality steel having less than about 1 ppm H, 50 ppm N, 25 ppm O and 0.005 S which includes subjection to vacuum, gas purging, and alternating current heating arcs, followed by shrouded pouring into sealed ingot molds to form a VAR electrode which is subsequently remelted under a very low absolute vacuum and re-solidified.Type: GrantFiled: October 26, 1992Date of Patent: October 12, 1993Assignee: A. Finkl & Sons Co.Inventors: Charles W. Finkl, Guy A. Brada, Algirdas A. Underys
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Patent number: 5244626Abstract: A low alloy steel product having high hardenability and good machaniability in the presence of a relatively low S content, and utilizing minimal quantities of the currently expensive elements Ni and Mo is disclosed, the product having the following approximate composition:______________________________________ C from about .42 to about .52 Si from about .15 to about .35 Ni from about .65 to about .95 Cr from about 1.40 to about 1.60 Mo from about .30 to about .50 Mn from about .75 to about .95 V from about .04 to about .10 S from about .010 to about .025 Ti from about .003 to about .075 Al from about .015 to about .030 Ca about 15% of Al H 2.Type: GrantFiled: August 3, 1992Date of Patent: September 14, 1993Assignee: A. Finkl & Sons Co.Inventors: Charles W. Finkl, Nicholas Cerwin
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Patent number: 5232660Abstract: A low alloy steel having a medium carbon content, and less than about 5% and less than about 1% Mn, which has hardenability approaching unity derived from the presence of N in an amount of from about 100-400 ppm, and a method of manufacturing such a steel which preferably contains the processing step in the late stages of manufacture of bubbling nitrogen gas through the molten steel.Type: GrantFiled: September 8, 1992Date of Patent: August 3, 1993Assignee: A. Finkl & Sons Co.Inventors: Charles W. Finkl, Albert L. Lehman
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Patent number: 5180444Abstract: A series of controlled quenching of elevated temperature steel work pieces includes locating hot work pieces on a support at distances from one another sufficient to avoid slack quenching and subjecting the work pieces to a forced draft at a speed which results in consistent uniformity of hardness and uniformity of grain size of which about 10 MPH is exemplary, and an apparatus therefore which provides two pass cooling so that minimum horsepower is used and environmental degradation is avoided.Type: GrantFiled: September 21, 1988Date of Patent: January 19, 1993Assignee: A. Finkl & Sons Co.Inventors: Charles W. Finkl, Nicholas Cerwin
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Patent number: 5110379Abstract: A low alloy hot work implement which retains its fine grain size at elevated working temperatures up to the range of 2,200 degrees F. to 2,250 degrees F. characterized in having a substantial content of N in the range of 75-150 ppm and, preferably, Co in the range of 0.01 to 0.1 the implement being further characterized by relatively narrow ranges of C, Mn, Si, Ni, Cr, Mo, and V, and substantial contents of Al which furnishes the basis for a substantial presence of aluminum nitrides in the final product.Type: GrantFiled: April 18, 1991Date of Patent: May 5, 1992Assignee: A. Finkl & Sons Co.Inventor: Charles W. Finkl
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Patent number: 5094431Abstract: A movable car bottom furnace in which premature failure of the metallic components of the movable car bottom are avoided by moving a hinged lower portion of the side wall into engagement with the refractory portion of the car bottom whereby only a refractory to refractory contact is made between the walls and car bottom, with all said contact occurring at a level above the uppermost level of the metallic components of the car bottom.Type: GrantFiled: October 2, 1990Date of Patent: March 10, 1992Assignee: A. Finkl & Sons Co.Inventors: Bruce C. Liimatainen, Algirdas A. Underys
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Patent number: 5059389Abstract: A steel product, such as a medium carbon die block, having good impact, ductility, transverse and physical properties, and lower than normal sulphur contents yet having machinability equal or better than higher sulphur levels characterized by a lower than ordinary level of stringer-type inclusions, other inclusions being mainly of the non-deleterious globular type.Type: GrantFiled: April 18, 1990Date of Patent: October 22, 1991Assignee: A. Finkl & Sons Co.Inventors: Charles W. Finkl, Albert L. Lehman
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Patent number: 4950324Abstract: This invention relates to a new method for the post melting treatment of molten steel in all, or nearly all, of the post melting systems in use at this time to lower the oxygen, hydrogen, and, to some extent, the nitrogen content thereof, and carry out the other purposes for which such systems are used including temperature and chemical homogenization continuous casting, piggy backing and other post melting treatment systems in use at this time in a manner which is less capital intensive, easier to operate and simpler in construction and operation than any of the basic systems, and apparatus therefor.Type: GrantFiled: January 24, 1989Date of Patent: August 21, 1990Assignee: A. Finkl & Sons Co.Inventors: Charles W. Finkl, Bruce Liimatainen, Herbert S. Philbrick, Jr.