Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 8100610 | Indexable insert for milling tools An indexable insert for a milling tool that includes at least one mounting surface having a through bore for fixing the insert to a rotatable tool, a rounded cutting edge defined by at least one cutting face and a lateral surface, and the at least one cutting face b... | 01/24/2012 |
| 7407348 | Indexable cutting inserts and methods for producing the same A cutting insert has a body formed of a superhard material or a superhard material and a cemented carbide, and has a hole through said body and a preformed hole inlay in said hole to allow securing of the insert to a holder. The method of making same is also disclos... | 08/05/2008 |
| 7325471 | Toolholder and cutting insert for a toolholder assembly A toolholder and cutting insert for a toolholder assembly wherein the cutting insert has a tapered shank which provides a resilient interference fit with a tapered section of a bore extending within the toolholder. Additionally, a rearwardly facing face on the cutti... | 02/05/2008 |
| 7326006 | Cutting tool and cutting insert therefor A cutting tool in which a cutting insert is retained by a retaining screw. The cutting insert comprises a rear surface and a lower surface, both of which are generally V-shaped. ... | 02/05/2008 |
| 7322777 | Reamer with clamping arrangement for adjusting cutting insert and other cutting tools with clamping arrangements for adjusting cutting inserts A cutting tool with a cutting insert and a pivotable screw and nut combination for holding the cutting insert. The cutting tool also has a feed mechanism to adjust the position of at least one cutting edge of the cutting insert in the cutting tool. ... | 01/29/2008 |
| 7311478 | Toolholder A tool holder (20) comprises a body portion (32), a support member assembly (33) mounted to the body portion and an insert-receiving cartridge (36) removably received in the support member. The insert-receiving cartridge (36) inclu... | 12/25/2007 |
| 7311480 | Plate-shaped cutter insert for direct clamping attachment in a base body The invention describes a drill plate with a clamping attachment in a rotatably driven base body, which on one of its end faces forms a centering groove that is open towards the top. A clamping slot extending into the material of the base body is arranged at the bot... | 12/25/2007 |
| 7287937 | Multi-function milling cutter A multi-function miller cutter includes a shank with a receiving portion defined in the shank at an end of the shank. A threaded hole is defined in the receiving portion so as to secure a disposable cutter. An angle is defined between an axis of the shank and a cent... | 10/30/2007 |
| 7281884 | Throw-away insert and milling cutter using a throw-away insert A throw-away insert includes: an upper surface; a bottom surface; two side surfaces formed with upper side surfaces and lower side surfaces; two end surfaces; four nose sections formed at the corners of the upper surface; a main cutting section formed from a ridge l... | 10/16/2007 |
| 7278806 | Two edge deburring tool A rotating tool for simultaneously deburring two surfaces of a workpiece is disclosed including a rotatable shaft having a first end and a second end with a first deburr surface on the first end facing towards the second end and having a first angle. A second deburr... | 10/09/2007 |
| 7261497 | Throw-away insert and milling cutter using throw-away insert A throw-away insert includes: an upper and bottom surface; two side surfaces; two end surfaces; a main cutting section formed from a ridge line positioned at the intersection between the side surfaces and the upper surface; a secondary cutting section formed from a ... | 08/28/2007 |
| 7252460 | Indexable tip for beveling by means of a conical milling head Based on an indexable tip (1), which serves to bevel a cylindrical or conical milling head (12) and which has both ground cutting edges (7) as well as a bore hole (8) that extends from the free surface (2) to the supporting surface... | 08/07/2007 |
| 7246973 | Tangential cutting insert and milling cutter A tangential milling cutting insert has two identical opposing end surfaces with two identical opposing major side surfaces of a generally parallelogrammatic shape and two identical opposing minor side surfaces extending between them. An ambidextrous tangential cutt... | 07/24/2007 |
| 7234902 | Milling tool holder with camming plug A milling tool holder apparatus includes a tool holder having a male structure received in a female opening of a shank, and a camming plug received in a transverse plug-receiving opening in the shank and the tool holder. Turning the camming plug in one direction mov... | 06/26/2007 |
| 7226249 | Ball nose cutting insert and ball end mill thereof In this insert, in addition to the insert being formed so that the cutting edge is twisted at a helix angle within the range of 5° to 25° about the axis when the insert is attached to the insert mounting seat, the thickness of the insert body at the flank located ... | 06/05/2007 |
| 7213623 | Stump cutting device with load-distributing tooth sockets A cutting device includes a rotatable base defining a plurality of closed-sided, tooth sockets. A plurality of tooth assemblies are mounted within respective sockets. Each tooth assembly includes a tooth holder having a base-engaging portion adapted to fit into the ... | 05/08/2007 |
| 7204662 | Cutting tool with stress splitter A cutting tool includes a tool body having a plurality of insert receiving pockets and at least one cutting insert mounted in each pocket. Each pocket includes a pocket base wall, a side wall and a stress relief groove. The tool body also includes a top surface incl... | 04/17/2007 |
| 7192227 | Cutting tool with replaceable cutting inserts The present invention relates to a cutting tool and a cutting insert. The tool includes a toolholder and at least one insert adapted for mounting relative to the toolholder. The at least one insert includes at least one chip removal channel. ... | 03/20/2007 |
| 7189039 | Tool coupling for rotating tools A tool assembly includes first and second tool bodies, a tool coupling interconnecting the tool bodies, and a drawing member for drawing the tool bodies together along a common longitudinal axis. The tool coupling includes a male portion disposed on one of the tool ... | 03/13/2007 |
| 7168895 | Indexable cutting insert An indexable insert includes an insert body including a plurality of cutting edge portions and an insert hole arrangement for permitting the insert to be secured to a toolholder. The insert hole arrangement includes at least one securing screw-receiving hole. The in... | 01/30/2007 |
| 7168896 | Cutting tool with replaceable cutting inserts A cutting tool for, e.g., dressing electrode tips includes a toolholder having an opening extending through the toolholder from a top of the toolholder to a bottom of the toolholder along a central axis of the toolholder, and a plurality of insert mounting pockets d... | 01/30/2007 |
| 7150590 | Machining tool, especially a milling tool A machining tool, especially a milling tool, includes a shaft-like holder defining a longitudinal axis (13). A seat (9) is provided in the front face of the holder for a cutting plate that can be inserted into the holder. The cutting plate has a coupli... | 12/19/2006 |
| 7147407 | Cutting insert and cutting tool The present invention provides a cutting insert an indexable cutting insert, for use in a cutting tool for milling operations. The cutting insert is generally rhomboidal in shape having a peripheral side surface extending between and perpendicular to the two opposin... | 12/12/2006 |
| 7144205 | Insert retention screw and tool body and insert therewith An insert retention screw has a head with a radius that is a sufficient size to fit within a mounting hole of a cutting insert and seat within a seating plane within the mounting hole that is generally perpendicular to the axis of the insert when the screw is at an ... | 12/05/2006 |
| 7143673 | Method for tube end preparation and milling head therefore Tube ends such as those of boiler tube banks, are prepared utilizing any of various combinations of processes which include a step of micro-diameter tube film removal from a portion of a tube end, including an area below a beveled segment, or segment to be beveled. ... | 12/05/2006 |
| 7140407 | Configurations and designs for stump grinding teeth and corresponding holding brackets A new design and configuration for tree stump cutting tooth and its corresponding holding bracket. Notch(s) on the tooth and rib(s) on the bracket are used to allow fast installation of tooth without gauging, reduced the time needed for such necessary tasks. The not... | 11/28/2006 |
| 7125210 | Face milling cutter Face milling cutter with a shaft section and a tool section, whereby the front end of the tool section has at least one flat, arched, lower cutting edge, a rounded corner cutting edge, and a peripheral cutting edge, whereby the lower cutting edge has a radius r1 | 10/24/2006 |
| 7121769 | Rotary slot milling cutter and cutting insert therefor A rotary slot milling cutter has a plurality of cutting portions, each cutting portion having an insert pocket and a cutting insert removably mounted therein. The cutting insert includes a top face and a bottom face which has two spaced-apart abutments, with a ceili... | 10/17/2006 |
| 7118311 | Slotting cutter and cutting insert therefor A slotting cutter includes a circular disc having an outer periphery along which a plurality of chip channels are formed which define respective seats for receiving respective index able cutting inserts. Each insert includes a planar bottom side. Either the seat or ... | 10/10/2006 |
| 7112013 | Milling cutter A milling cutter with a disk like cutter body having radially directed slots and a central aperture. An exchangeable hub comprises two adapter members located on either side of the cutter body. One of the adapter members has a raised portion located in the central a... | 09/26/2006 |
| 7104735 | Tangential cutting insert and milling cutter A tangential milling cutting insert has two identical opposing end surfaces with two identical opposing major side surfaces of a generally parallelogrammatic shape and two identical opposing minor side surfaces extending between them. An ambidextrous tangential cutt... | 09/12/2006 |
| 7100649 | Rotary cutter for a wood planing machine A rotary cutter includes: an elongated shaft that defines a rotation axis and that has two opposite mounting ends, and at least one axially extending blade-mounting surface parallel to the rotation axis and extending between the mounting ends; a pair of blade-aligni... | 09/05/2006 |
| 7094007 | Tangential cutting insert and milling cutter A tangential milling cutting insert having two identical opposing end surfaces with two identical opposing major side surfaces of a generally parallelogrammatic shape and two identical opposing minor side surfaces extending between them. Each end surface has a perip... | 08/22/2006 |
| 7090443 | Cutting tool and cutting insert therefor A cutting tool in which a cutting insert is retained by a retaining screw. The cutting insert comprises a rear surface and a lower surface, both of which are generally V-shaped. ... | 08/15/2006 |
| 7073987 | Tangential cutting insert and insert holder A tangential indexable cutting insert can be used for metal cutting processes in general and for radial and axial turning of a stepped square shoulder in particular. The cutting insert exhibits 180° rotational symmetry about three mutually perpendicular axes. The c... | 07/11/2006 |
| 7063489 | Tangential cutting insert and milling cutter A tangential milling cutting insert having two identical opposing end surfaces with two identical opposing major side surfaces of a generally isosceles trapezoidal shape and two identical opposing minor side surfaces extending between them is disclosed. Each end sur... | 06/20/2006 |
| 7059811 | Cutting tool coated with diamond A cutting tool coated with diamond in which diamond is coated as a film on a substrate having a step 15 to 500 μm in height in the vicinity of a cutting edge on the rake surface and/or the flank surface. Only the diamond film in the vicinity of the cutting edge can... | 06/13/2006 |
| 7051776 | Rotary cutter for a wood planing machine A rotary cutter includes: an elongated polygonal shaft that defines a rotation axis, that has blade-mounting surfaces parallel to and surrounding the rotation axis, and that is formed with blade-aligning studs for aligning a blade, the blade-mounting surfaces being ... | 05/30/2006 |
| 7052214 | Cutting insert and tool holder A diagonal ledge (22) is machined into each of the sidewalls (20) of the holder (12) with the ledges (22) crossing one another at an intersection B and the holder (12) is characterized by the bottom (18) of the pocket separa... | 05/30/2006 |
| 7044695 | Milling tool A milling cutter having a pair of clamping components mounted on a tool holder to form a slot for receiving a cutting insert. One of the clamping components forms an integral extension of the tool holder's shank. The two clamping components are fastened together by ... | 05/16/2006 |
