Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 7566192 | Axial seating pin An axial seating pin contacting and supporting an insert attached to a cutting tool body. The axial seating pin eliminates the need for forming an axial wall on the body of the cutting tool and contributes to the life of the cutting tool by providing a replaceable a... | 07/28/2009 |
| 7410330 | Cutter assembly The cutter assembly contains an axle having a number of parallel, equally spaced troughs along the axial direction, and a number of circular blade discs, each having a center hole threaded through by the axle. Each blade disc has a number of teeth along the circumfe... | 08/12/2008 |
| 7399146 | Rotary cutting tool having irregular insert orientation A rotary cutting tool such as a helical end mill, having pockets arranged to overcome harmonic vibrations. The tool has at least two and in one embodiment all three of three spacing irregularities. In the first irregularity, columns of pockets, typically associated ... | 07/15/2008 |
| 7373707 | Milling apparatus The milling apparatus (10) is arranged in such a manner that the deep groove cutter (21) is attached to the milling cutter (20) and the rotational drive shaft (23a) is approximately orthogonal to a spine (16a) of a sh... | 05/20/2008 |
| 7367753 | Milling cutter 12. A rotationally drivable milling cutter has a cylindrical carrier body (10), which is equipped on its circumference with a plurality of cutting bodies (12) comprising a cutting material that is harder than hard metal. The cutting bodies (1... | 05/06/2008 |
| 7299727 | Liquid transport cavity saw blade A saw blade has a saw body and a cutting edge for cutting during movement of the saw blade. A lubricating guide support has a bearing surface disposed immediately adjacent the saw body for proper alignment of the saw blade during cutting. The guide support contains ... | 11/27/2007 |
| 7204663 | Multi-purpose end-mill A multi-purpose end-mill to be used for different machining purposes, in particularly useful for closed or open contours machining. The end-mill comprises a cylindrical shank portion connected to a first cutting portion provided with a plurality of spaced-apart cutt... | 04/17/2007 |
| 7201544 | Deep hole boring drill A drill for producing a deep hole that does not produce a bend of the hole during cutting. A drill body is spirally provided with a pair of cutting edges. The cutting edges are spaced at about 180 degrees apart around a core of the drill and the edge line of a tip s... | 04/10/2007 |
| 7188661 | Process for joining members of a heat transfer assembly and assembly formed thereby A method and assembly that makes use of an adhesive to form a joint structure between two members, such as two heat transfer components. A first member has a slot in a surface thereof, while the second member has an edge received in the slot of the first member. One... | 03/13/2007 |
| 7168893 | Throw-away tipped drill, throw-away tip, and drill main body In a throw-away tipped drill, a slit is formed at the bottom surface of a tip attachment seat which faces towards the end of its axial line direction, with this slit extending towards the rear of the axial line direction. Furthermore, when seen from the end of the a... | 01/30/2007 |
| 7134811 | Helical end mill type cutter configured to compensate for radial runout An end mill type rotary cutting tool and associated cutting inserts that collectively compensate for radial pocket runout, thereby eliminating overlap marks in a machined work piece. The tool has pockets arrayed in helical flutes such that after one insert has abrad... | 11/14/2006 |
| 7036539 | Air cooled router bit A cutter bit includes a body formed integrally with a mounting shank. The body defines a pair of chip boxes with two planar surfaces and a cutting knife mounted to one of the planar surfaces of each chip box. The body defines holes from the chip boxes to the outer s... | 05/02/2006 |
| 7014394 | Cutting tool Rotary cutting tools for cutting various types of sheet material are known. However, when cutting non-ferrous materials, damage known as fluttering is caused to both surfaces of the sheet material being cut. The requirement for the cutting of larger and larger sheet... | 03/21/2006 |
| 7001113 | Variable helix cutting tools Tools, including end mills, include a flute having a helix which varies along the length of the tool. The invention is not limited in terms of the number of flutes, whether odd or even; helix change(s) within a flute or between flutes; or indexing between cutting ed... | 02/21/2006 |
| 6984093 | Shaft tool with fixedly disposed winglike inserts A shank-end tool is described that is simple and economical to manufacture, with permanently attached wing-like inserts for the milling-type machining of chipless materials that remains functional with unavoidable frictional wear and with increasing erosion. The sha... | 01/10/2006 |
| 6976810 | Rotatable cutting wheel A rotatable cutter wheel for machining structural members is provided. The cutter wheel includes a disk, typically formed of carbide, defining a first side, a second side opposite to the first side, and a plurality of radial blades. At least one of the first and sec... | 12/20/2005 |
| 6976811 | Milling cutter A cutting tool for cutting a workpiece comprising a tool body having an outer surface thereon and a central axis therein and including at least a first and second spiraling flute in the outer surface, each flute including a plurality of inserts secured therein to de... | 12/20/2005 |
| 6939093 | Chamfer hob and method of use thereof A chamfer hob for and a method of providing a chamfered end and having an identical chamfer angle at both a front face and a back face of a gear including a shaft, a plurality of helical cutting vanes extending radially outwardly from the shaft, such that the radial... | 09/06/2005 |
| 6899494 | Rotary metal cutting tool A rotary end-mill is disclosed having a deferential flute construction with all individual flutes being unequally spaced about the circumference of the cylindrical tool body at different helix angles. The cutting edges of these flutes also face in the direction of t... | 05/31/2005 |
| 6887017 | Self-guided trim tool and method A rotary trim tool (11) and method for trimming workpieces of various materials. The rotary trim tool comprises a shank (12), a trim guide (13), a cutting member (14), and a trim-depth guide (15). For use, the tool (11) is m... | 05/03/2005 |
| 6877934 | Milling head for thread whirling A milling head for thread whirling, the milling head includes a plurality of cutting elements evenly disposed around a center hole, each cutting element in the plurality of cutting elements includes at least two cutting surfaces formed thereon. Any one of the at lea... | 04/12/2005 |
| 6764254 | Throwaway insert and pin mirror cutter using the same A throwaway insert for a pin mirror cutter in which eight corners can be used and which the cutting performance and machining accuracy can be increased by making positive the axial rake angle of the peripheral cutting edge. Side faces of a negative insert of a paral... | 07/20/2004 |
| 6709318 | Dual-grinding method for bar blades and grinding disc for carrying out said method A grinding wheel and a method for grinding bar blade for the production of spiral gear teeth are described. For economical grinding of such bar blades the grinding wheel has a conical grinding surface (Pp) widening from a small diameter (d1) to a large diamet... | 03/23/2004 |
| 6568442 | Router bit for floorboard The invention is for a method for removing at least a portion of a floorboard from a plurality of floorboards installed on a surface base. The method comprises isolating the floorboard or portion thereof for removal and removing a central portion of the i... | 05/27/2003 |
| 6439811 | End-mill tool with high and low flutes and related method for rough cutting and finishing a workpiece An improved rotary cutting tool overcomes the disadvantages and limitations of known constructions through the use of least one primary flute defining a low-angle cutting surface, and at least one secondary flute defining a high-angle cutting surface. The... | 08/27/2002 |
| 6413021 | Rotating cutting tool A cutting tool for high-speed machining has at least one cutting insert that is interchangeably mounted to a main body of the tool. At least parts of the supporting surface of the cutting insert and of the receiving surface of the main body of the tool, w... | 07/02/2002 |
| 6374712 | Disk milling cutter and suitable indexable insert A side milling cutter with cutting inserts, by which side milling cutter a crank pin can be cut with a single feed motion. The plate-shaped cutting inserts are arranged on the periphery of the side milling cutter alternating between the left and right sid... | 04/23/2002 |
| 6183170 | Cylindrical cutting device A chisel holder is connected exchangeably in a fixed manner to at least one base mount disposed on a surface of a cylindrical cutting device, such as a cutting machine or a line milling machine, in a manner obviating use of a threaded setscrew. A borehole... | 02/06/2001 |
| 6179528 | End-mill tool with high and low helical flutes and related method for rough cutting and finishing a workpiece An end-mill tool has at least one low helix angle flute, or primary flute) and at least two low helix angle flutes, or secondary flutes. The primary and secondary flutes intersect to define a plurality of compound helical cutting surfaces. Each of the com... | 01/30/2001 |
| 6132146 | Rotary cutting tool A rotary cutting tool with a longitudinal axis of rotation, has a cutting head formed with at least two chip evacuation flutes and at least two body portions therebetween. The body portions bear, at a front face of the cutting head, a plurality of cutting... | 10/17/2000 |
| 6077016 | Method and apparatus for roughening a book block spine formed of compressed printed sheets An apparatus for roughening a surface of a book block spine formed of a plurality of individual printed sheets clamped together. The apparatus includes a roughening tool which has a tool bit holder having a rotary axis and a radial face; a plurality of cu... | 06/20/2000 |
| 6056485 | Ramp plunge and feed milling cutter A ramp, plunge and feed milling cutter having a cylindrical body with cutting ribs protruding beyond the length of the cylindrical body to define a cavity. The integral single-piece construction of the milling cutter permits the fabrication of small diame... | 05/02/2000 |
| 6053672 | Milling cutting insert and milling toolholder therefor A milling cutting insert including a substantially prismatic body portion having an upper surface, a lower surface and at least two pairs of adjacent side surfaces; a pair of spaced apart co-planar abutment surfaces formed along a first side of a first of... | 04/25/2000 |
| 6042308 | Thread milling cutter with positioned tooth flanks A thread milling cutter including a shank and a milling region adjoining the shank at a front end of the shank and including at least two rows of teeth and extending parallel to each other, with the teeth of both rows having the same height and forming ea... | 03/28/2000 |
| 6007276 | End-mill tool with high and low helical flutes and related method for rough cutting and finishing a workpiece An end-mill tool has at least one low helix angle flute, or primary flute) and at least two low helix angle flutes, or secondary flutes. The primary and secondary flutes intersect to define a plurality of compound helical cutting surfaces. Each of the com... | 12/28/1999 |
| 5919008 | Milling cutter A milling cutter for performing milling work on a work comprises a cutter body having a ring-shaped structure. A plurality of first tips are disposed on an inner peripheral surface of the cutter body along the circumferential direction thereof with a dist... | 07/06/1999 |
| 5762452 | Long cutting length milling cutter The present invention pertains to a long cutting length milling cutter with inserts with hole with cutting edge inserts which are arranged on various levels in the axial direction from a front end of the said milling cutter body. The inserts of the variou... | 06/09/1998 |
| 5692860 | On-edge end milling cutter and insert A small diameter endmill and cutting insert therefor especially adapted to endmills of small diameter, e.g., three inches or less, by virtue of a cylindrically convex flank surface of radius of curvature preferably greater than the radius of the cutting p... | 12/02/1997 |
| 5669744 | Rotary chisel A high-speed carbide rotary cutting tool designed for use in the carving, cutting and shaping of most materials including, but not limited to, wood, ferrous and non-ferrous metals, bone, stone, plastics and composites. It is designed for use in high-speed... | 09/23/1997 |
| 5662435 | Cutter bit A cutter bit includes a body integrally formed with a mounting shank. The body is formed with a pair of chip boxes having an arcuate surface and a planar surface with a cutting knife mounted to each planar surface. A plurality of equally spaced recesses a... | 09/02/1997 |
