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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 8091459 | Method and apparatus for making a rotary tool for chip removing machining A method for manufacturing a rotary tool for chip removing machining with at least one chip flute that extends in the longitudinal direction of the tool. The method involves preparing a mixture of a cemented carbide, cermet or ceramics powder and a carrier, such as ... | 01/10/2012 |
| 8053710 | Method of making a heating element of the molybdenum silicide type and a heating element A molybdenum silicide type-heating element and a method of manufacturing a heating element of the molybdenum silicide type. The heating element contains substantially Mo(Si1-x Alx)2 and Al2O3 and is prepared by ... | 11/08/2011 |
| RE41647 | Method of making a cemented carbide body with increased wear resistance The present invention relates to a method of making a cemented carbide body with a bimodal grain size distribution by powder metallurgical methods including wet mixing, without milling, of WC-powders with different grain size distributions with binder metal and pres... | 09/07/2010 |
| RE41646 | Cemented carbide body with increased wear resistance As there is disclosed a cemented carbide body comprising WC with an average grain size of | 09/07/2010 |
| 7708936 | Cemented carbide tool and method of making the same A cemented carbide tool comprising hard constituents in a binder phase of Co and/or Ni and at least one surface portion and an interior portion in which surface portion the grain size is smaller than in the interior portion is disclosed. The surface portion with the... | 05/04/2010 |
| 7700186 | Cemented carbide body According to the present invention there is now provided a body cemented carbide provided with at least one wear resistant layer, which body contains a toughness increasing surface zone. Increase in toughness is obtained due to the presence of a surface zone having ... | 04/20/2010 |
| 7678327 | Cemented carbide tools for mining and construction applications and method of making same A cemented carbide cutting tool insert/button for mining and construction comprising hard constituents in a binder phase of Co and/or Ni and at least one surface portion and an interior portion in which surface portion the grain size is smaller than in the interior ... | 03/16/2010 |
| 7645316 | Ti(C,N)-(Ti,Nb,W)(C,N)-Co alloy for finishing and semifinishing turning cutting tool applications A titanium based carbonitride alloy contains Ti, Nb, W, C, N and Co. The alloy also contains, in addition to Ti, Co with only impurity levels of Ni and Fe, 4-7 at % Nb, 3-8 at % W and has a C/(C+N) ratio of 0.50-0.75. The Co content is 9- | 01/12/2010 |
| RE40962 | Cemented carbide insert Methods of making a coated cemented carbide body include: forming a powder mixture having WC, 5-12 wt % Co, 3-11% cubic carbides of Ta and Ti with a ratio of Ta/Ti is 1.0-4.0; adding N in an amount of 0.6-2.0% of the weight of Ta and Ti; milling and spray-drying the... | 11/10/2009 |
| 7597510 | Indexable cutting insert and a cutting tool having such a cutting insert An indexable cutting insert has at least first and second cutting edges and first and second edge-location surfaces associated with the first and second cutting edges, respectively. The insert-manufacturing procedure includes forming the first edge-location surface ... | 10/06/2009 |
| 7588621 | Ti(C,N)-(Ti,Nb,W)(C,N)-co alloy for milling cutting tool applications A titanium based carbonitride alloy containing Ti, Nb, W, C, N and Co. The alloy also contains, in addition to Ti, 9-14 at % Co with only impurity levels of Ni and Fe, 1- | 09/15/2009 |
| RE40873 | Method of making grooving or parting insert A method of making a cutting tool, the cutting tool having a WC—Co based cemented carbide body and a multi-layer coating, the method including: applying a first innermost bonding layer TiN to the body; applying a second layer in the form of a mutlilayered structur... | 08/18/2009 |
| 7571779 | Drill rod and method of manufacture thereof A drill rod for percussive rock drilling includes a first rod part and an additional second rod part. The first rod part includes first and second ends, an inner duct, and an external thread disposed adjacent the first end, wherein the external thread is at least pa... | 08/11/2009 |
| 7549825 | Cutting insert and associated milling cutter A cutting insert used for cutting metal, especially for milling camshafts. The insert comprises at least one cutting edge that is formed by the intersection of a face with a flank. The cutting edges extend at an angle deviating from 90 degrees relative to the cuttin... | 06/23/2009 |
| 7549358 | Cutting tool and parts therefor, as well as a method for the manufacture of such a cutting tool A cutting tool includes first and second parts interconnected by respective connecting surfaces. Each connecting surface includes a serrated connecting surface having alternating ridges and grooves. Each groove is formed by two flanks of respective adjacent ridges a... | 06/23/2009 |
| RE40785 | Method of making a submicron cemented carbide with increased toughness The present invention relates to a method of making a cemented carbide comprising WC, 6-12 wt. % Co and 0.1-0.7 wt. % Cr, wherein the WC-grains are coated with Cr prior to mixing and no milling takes place during the mixing step. As a result a cemented carbide with ... | 06/23/2009 |
| 7531214 | Method for manufacturing an oxide coated cutting tool A method of depositing a crystalline α-Al2O3 layer onto a cutting tool insert by Chemical Vapor Deposition at a temperature of from about 625 to about 800° C. includes the following steps: depositing a from about 0.1 to about 1.5 μm layer of... | 05/12/2009 |
| 7514061 | Method of making submicron cemented carbide The present invention relates to a method of making tungsten carbide powder by dissolving at least one organic or inorganic metal salt or compound of at least one of the groups IV, V, and VI of the periodic system preferably Cr, V, Mo and W in at least one polar sol... | 04/07/2009 |
| 7449043 | Cemented carbide tool and method of making the same A cemented carbide tool comprising hard constituents in a binder phase of Co and/or Ni and at least one surface portion and an interior portion in which surface portion the grain size is smaller than in the interior portion is disclosed. The surface portion with the... | 11/11/2008 |
| 7422805 | Cutting tool for bimetal machining Coated cemented carbide cutting tool inserts for bimetal machining under wet conditions at moderate cutting speeds, and in particular, cutting tool inserts for face milling of engine blocks formed from alloys of cast iron and aluminium and/or magnesium. The inserts ... | 09/09/2008 |
