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| Number | Title | Issue Date |
| 5980662 | Method for batch annealing of austenitic stainless steels Methods are provided for annealing coils of austenitic stainless steels through the use of a batch annealing process. The preferred methods involved selecting compositions of austenitic stainless steel alloys having a sufficiently low weight percentage of... | 11/09/1999 |
| 5904315 | Expansion sleeve Apparatus for increasing the diameter of an expansible reel. The apparatus includes an expansible sleeve member to be disposed over the reel and one or more elastic expansible members to maintain the sleeve member in contact with the reel, but which allow... | 05/18/1999 |
| 5894255 | Electromechanical relay The present disclosure is directed to a relay. The relay includes a frame and a header seal assembly base having contacts and a return spring. The relay also includes an armature assembly which engages the return spring. The armature assembly has at least... | 04/13/1999 |
| 5887645 | Method and apparatus for continuous casting with speed synchronization A method and apparatus are provided for direct casting of metal alloys from molten metal to continuous sheet or strip product while synchronizing the speeds of the casting surface and driven rolls by providing a master-slave relationship for controlling t... | 03/30/1999 |
| 5843246 | Process for producing dual phase ferritic stainless steel strip A method for producing a dual phase ferrite-martensite steel product from a cold rolled stainless steel. The method includes a step of rapidly heating the steel to annealing temperature in less than 30 seconds, followed by a step of cooling the heated ste... | 12/01/1998 |
| 5749140 | Ballistic resistant metal armor plate A method of producing steel armor plate having improved resistance to penetration by projectiles. The armor plate provides for intended inclusions, generally elliptically shaped, in the steel oriented substantially parallel to the plate surface. Those inc... | 05/12/1998 |
| 5716143 | Spherical plain bearing A spherical plain bearing is provided having improved wear resistance under heavy axial and radial loads of a rotating shaft. The bearing includes a pillow block having a concave inner surface, a split cylindrical protective sleeve for mating with and det... | 02/10/1998 |
| 5590559 | Method and apparatus for domain refining electrical steels by local mechanical deformation with multiple scribing rolls A method and apparatus are provided for refining the domain wall spacing of a grain-oriented silicon steel strip by mechanical scribing and by employing more than one row of staggered small diameter scribing rolls arranged to scribe a different portion of... | 01/07/1997 |
| 5588321 | Segmented scribing roller for refining the domain structure of electrical steels by local mechanical deformation A method and apparatus are provided for refining the domain wall spacing of a grain-oriented silicon steel sheet by mechanical scribing using a solid anvil roll and a scribing roller including scribing segments arranged side by side along an arbor. The ar... | 12/31/1996 |
| 5529644 | Stainless steel and carbon steel composite and method of producing the same A pressure-bonded composite material includes at least one layer of a stabilized low carbon steel core material and one layer of a stainless steel joined at an interface, wherein the stabilized carbon steel includes columbium (niobium) and at least one ot... | 06/25/1996 |
| 5490908 | Annealing and descaling method for stainless steel A method for processing stainless steel strip or sheet provides for cleaning the surface of the stainless steel with a solution selected from the group consisting of water and alkaline-based and acid-based compounds to reduce oxide scale formation and to ... | 02/13/1996 |
| 5484009 | Method and apparatus for direct casting of continuous metal strip A method and apparatus are provided for direct casting molten metal to continuous strip of crystalline material by controlling the supply of molten metal to a casting vessel substantially horizontal to an adjacent moving casting roll surface, the molten m... | 01/16/1996 |
| 5483811 | Segmented anvil roller for refining the domain structure of electrical steels A method and apparatus are provided for refining the domain wall spacing of a grain-oriented silicon steel sheet by mechanical scribing using a segmented anvil roller and a scribing roll. The segments of the anvil roll are arranged side by side along an a... | 01/16/1996 |
| 5463889 | Segmented scribing roller for refining the domain structure of electrical steels by local mechanical deformation A method and apparatus are provided for refining the domain wall spacing of a grain-oriented silicon steel sheet by mechanical scribing using a solid anvil roll and a scribing roller including scribing segments arranged side by side along an arbor. The ar... | 11/07/1995 |
| 5415382 | Apparatus for separating slag and nonmetallic particles during molten metal teeming operations A method and apparatus is provided for temporarily retaining slag and nonmetallic particles in a tundish while molten metal is being transferred through the tundish to other desired vessels. In particular, a meltable dam is placed into an opening between ... | 05/16/1995 |
| 5408856 | Apparatus for domain refining electrical steels by local mechanical deformation with multiple scribing rolls A method and apparatus are provided for refining the domain wall spacing of a grain-oriented silicon steel strip by mechanical scribing and by employing more than one row of staggered small diameter scribing rolls arranged to scribe a different portion of... | 04/25/1995 |
| 5405464 | Riders for the processing of steel and method for using Method and apparatus for supporting a steel slab and protecting the bottom surface of the slab as the slab is advanced over a skid bar system through a slab heating furnace and which includes at least a first member for supporting the weight of the steel ... | 04/11/1995 |
| 5397402 | Silicon steel strip having mechanically refined magnetic domain wall spacings and method for producing the same A grain oriented silicon steel strip and method are provided for producing the same wherein a chevron pattern of scribe lines mechanically refines the magnetic domain wall spacings. Multiple chevron patterns are formed to extend always transversely across... | 03/14/1995 |
| 5370946 | Stainless steel and carbon steel composite A pressure-bonded composite material includes at least one layer of a stabilized low carbon steel core material and one layer of a stainless steel joined at an interface, wherein the stabilized carbon steel includes columbium (niobium) and at least one ot... | 12/06/1994 |
| 5370749 | Amorphous metal alloy strip An amorphous metal alloy strip is disclosed having a width greater than about one inch and a thickness less than about 0.003 inch, this alloy consists essentially of 77 to 80 atomic percent iron, 12 to 16 atomic percent boron and 5 to 10 atomic percent si... | 12/06/1994 |
| 5352304 | High strength low alloy steel A high strength low alloy steel having a yield strength of at least 100 ksi and a Charpy V-notch impact strength of at least 35 ft-lbs. at minus 84° C. (minus 120° F.) at thickness of up to 6 inches is provided wherein the steel consists essentially of ... | 10/04/1994 |
| 5350464 | Silicon steel strip having mechanically refined magnetic domain wall spacings and method for producing the same A grain oriented silicon steel strip and method are provided for producing the same wherein a chevron pattern of scribe lines mechanically refines the magnetic domain wall spacings. Multiple chevron patterns are formed to extend always transversely across... | 09/27/1994 |
| 5332416 | Method for separating slag and nonmetallic particles during molten metal teeming operations using meltable dam A method and apparatus is provided for temporarily retaining slag and nonmetallic particles in a tundish while molten metal is being transferred through the tundish to other desired vessels. In particular, a meltable dam is placed into an opening between ... | 07/26/1994 |
| 5327083 | Method and apparatus using magnetic flux scanning to test grain structure of magnetic sheet material The grain structure of electrical steel strip is tested by inducing a magnetic flux field into the strip by pole pieces at opposite sides of a permanent magnet. A magnetic detector head between the pole pieces responds to the leakage of flux as the steel ... | 07/05/1994 |
| 5312496 | Skin pass rolling of mechanically scribed silicon steel A grain oriented silicon steel strip is flattened by a skin pass rolling to flatten undulations caused by scribe lines imparted to the strip for mechanically refining the magnetic domain wall spacings.... | 05/17/1994 |
| 5293926 | Method and apparatus for direct casting of continuous metal strip A method and apparatus are provided for direct casting molten metal to continuous strip of crystalline material by controlling the supply of molten metal to a casting vessel substantially horizontal to an adjacent moving casting roll surface, the molten m... | 03/15/1994 |
| 5286310 | Low nickel, copper containing chromium-nickel-manganese-copper-nitrogen austenitic stainless steel An low-nickel austenitic stainless alloy containing about 16.5 to about 17.5% by weight chromium; about 6.4 to about 8.0% by weight manganese; about 2.5 to about 5.0% by weight nickel; about 2.0 to less than about 3.0% by weight copper; less than about 0.... | 02/15/1994 |
| 5175026 | Method for hot-dip coating chromium-bearing steel A method of pretreating and hot-dip coating aluminum or aluminum alloys on a chromium-containing steel strip to provide an improved coating comprising annealing final gauge steel strip in an oxygen excess atmosphere to produce a chromium-rich oxide on the... | 12/29/1992 |
| 5162873 | Slab surface contour monitor A system for creating a image of the surface contours of a metal workpiece, such as a continuous cast slab, is provided including a sheet of single frequency, planar light is directed to strike a surface of the workpiece, and a video camera positioned to ... | 11/10/1992 |
| 5131573 | Method and device for shrouding a stream of molten metal A method and device are described for preventing the atmospheric contamination of molten metal during the transfer thereof from one vessel to another. The device includes a first metal ring releasably connected to a molten metal receiving vessel and secon... | 07/21/1992 |
| 5123977 | Method and apparatus for refining the domain structure of electrical steels by local hot deformation and product thereof A method is provided for improving the electrical characteristics of grain-oriented silicon steel sheet by heating the steel to temperatures above 1000° F. and then deforming grooves to refine the magnetic domains, optionally, post heat treating to form ... | 06/23/1992 |
| 5114501 | Method employing skin-pass rolling to enhance the quality of phosphorous-striped silicon steel An improvement in a method for improving the magnetic domain wall spacing of grain-oriented silicon steel sheet having an insulating coating thereof, wherein the sheet is subjected to metallic contaminants, particularly phosphorus and phosphorus compounds... | 05/19/1992 |
| 5103662 | Tandem rolling mill tension control with speed ratio error discrimination A method is provided for controlling interstand tension by roll gap adjustment to reduce gage variations caused by unplanned rolling velocity changes wherein a signal proportional to the tension changes produced by deviations from the desired speed ratio ... | 04/14/1992 |
| 5101652 | Insulating heat retention system and method An insulating heat re-radiation - retention and infiltration air free system and method is provided for processing heated articles, including upper and lower heat shields to form, in combination with spaced apart rollers employed to support the articles, ... | 04/07/1992 |
| 5101650 | Tandem mill feed forward gage control with speed ratio error compensation A method for controlling metal strip thickness in a multi-stand rolling mill is provided which employs feed forward control to adjust the main drive armature current at the upstream mill stand when strip thickness data arrives at the downstream mill stand... | 04/07/1992 |
| 5087167 | Lifting shoe assembly for use on sheet lifters An adjustable lifting shoe assembly for sheet or sheet package lifting devices is disclosed. The assembly enables a plurality of lifting shoes suspended from a reinforced back plate to be slid laterally along the back plate to stradle and/or be inserted b... | 02/11/1992 |
| 5083867 | Slab surface contour monitor A system for creating a image of the surface contours of a metal workpiece, such as a continuous cast slab, is provided including a sheet of single frequency, planar light is directed to strike a surface of the workpiece, and a video camera positioned to ... | 01/28/1992 |
| 5080326 | Method and apparatus for refining the domain structure of electrical steels by local hot deformation and product thereof A method is provided for improving the electrical characteristics of grain-oriented silicon steel sheet by heating the steel to temperatures above 1000° F. and then deforming grooves to refine the magnetic domains, optionally, post heat treating to form ... | 01/14/1992 |
| 5079939 | Rolling mill strip wipers A rolling mill strip wiper assembly is provided which includes an elongated strip wiper positionable transversely to the direction of travel of the moving strip, having a substantially rigid wiper body which supports on its exterior one or more layers of ... | 01/14/1992 |
| 5078811 | Method for magnetic domain refining of oriented silicon steel A method is provided to effect domain refinement of grain-oriented silicon steel sheets having a surface layer of forsterite by applying to the layer a phosphorus-rich flux-printing agent having a desired composition, and degree of fluidity in a sufficien... | 01/07/1992 |
