Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 8109701 | Cutting head of a reamer A cutting head of a reamer has a cutting head forward end, a cutting head rear end distal the cutting head forward end, and a peripheral surface therebetween. The peripheral surface has at least two wiping pads that extend rearwardly from the cutting head forward en... | 02/07/2012 |
| 7887269 | Spade bit with improved cutting geometry A spade bit includes a shaft defining an axis, and a blade attached to the shaft and having a first blade portion and a second blade portion. The first blade portion defines a first leading face portion, and the second blade portion defines a second leading face por... | 02/15/2011 |
| 7665935 | Carbide drill bit for composite materials A drill bit for producing holes in composite materials is disclosed. The drill bit includes an elongate drill bit body having a drill bit diameter. The drill bit also includes at least two helical flutes. The helical flutes have a reverse helix angle and a primary c... | 02/23/2010 |
| 7665936 | Wood drill bit The invention concerns a wood drill bit with a cylindrical drilling head. The drilling head has at its end a centering tip which is disposed on the longitudinal axis of the drill bit and which projects in the drilling direction for centering the wood drill bit, at l... | 02/23/2010 |
| 7648316 | Forstner drill bit A drill bit has a cylindrical drill head (1) having two essentially diametrically situated primary cutting edges (2) and chip channels (3) associated therewith. The outer surface (5) of the drill head is formed by curved sections (6 | 01/19/2010 |
| 7625161 | Rotary cutting tool assembly and cutting insert and tool shank therefor A tool shank and a replaceable cutting insert are provided for a rotary cutting tool assembly. The tool shank has a drive surface including a central portion, a first portion of generally planar shape extending away from the central portion and a second portion of g... | 12/01/2009 |
| 7441991 | Chamfering tool A circular truncated cone-shaped cutting section (3) of a chamfering tool (1) is formed with a first blade section (31) which is tilted so that a chip is discharged to a side of a shank section (2), and a second blade section (32) ... | 10/28/2008 |
| 7418756 | Fastener thread cleaning apparatus A fastener thread cleaning apparatus includes a first arm and a second arm each having a first end and a second end. The first and second arms are pivotally coupled together adjacent to the first ends to define a pair of jaws. An abutting side of each of the of the ... | 09/02/2008 |
| 7393163 | Drill with improved cutting insert formation A drill includes a tip-forming front end having at least two straight cutting edges and at least two chip flutes extending from the tip end towards a rear end. Each cutting edge includes an inner portion disposed near a center line of the drill, and an outer portion... | 07/01/2008 |
| 7371035 | Drill insert geometry having V-notched web The present invention relates to a V-notched web formed on a drill insert of a drill tool assembly. The V-notched web allows greater stability and feed rates, while decreasing the heat generated at the insert tip. The present invention is provided by a drill insert ... | 05/13/2008 |
| 7364390 | Drilling tool Disclosed is a drilling tool comprising a first drill bit (2) that is provided with at least two forward cutting edges (4, 5) and a second drill bit (3) which encompasses at least two rear cutting edges (6, 7). A cutting groove (8, 9 | 04/29/2008 |
| 7354229 | Drill A drill including a chisel edge provided at a tip end portion, a spiral first chip discharging groove and a spiral second chip discharging groove, land portions provided between the first chip discharging groove and the second chip discharging groove, and a cut blad... | 04/08/2008 |
| 7351017 | Solid drill bit for machine tools A solid drill bit for machine tools has a drill bit body and two indexable inserts arranged at a radial distance from one another in respective insert seats. The inserts have an essentially quadratic contour. Their front-end main cutting edges project axially beyond... | 04/01/2008 |
| 7338237 | Drill and drill tip for chip removing machining The present invention relates to a drill and a drill tip for chip removing machining. The drill has a drill body, a drill tip and a shank portion. The drill tip comprises at least one cutting edge and at least one peripherally arranged guide member. The drill has a ... | 03/04/2008 |
| 7329073 | Cutting tool and tool head The present invention relates to a tool head preferably for milling. The tool head is connectable to a toolholder. The tool head includes a cutting portion and a mounting portion. The mounting portion includes an axial stop surface and a radial stop surface. Dimensi... | 02/12/2008 |
| 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 |
| 7326009 | Edge-carrying drill body having an internal chip-removal channel An edge-carrying drill body intended for deep hole drilling, is rotatable around a central geometric axis and comprises a through-channel arranged for internal chip evacuation. The channel mouths in front and rear ends of the drill body. A front channel mouth is bri... | 02/05/2008 |
| 7320565 | Edge-carrying drill, method for the manufacture of the drill, and drilling tool comprising such a drill In a first aspect, the invention relates to an edge-carrying drill body (1) of the type that is intended for deep hole drilling, and which is rotatable around a geometric axis (C) as well as comprises a through channel (2) arranged for internal chip ev... | 01/22/2008 |
| 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 |
| 7309196 | Modular drill A drill having a replaceable cutting head, modified to eliminate forces which would distort the pocket of the drill shank and otherwise concentrate stresses which would cause failure of the drill. The cutting head has a frustoconical depending connecting member rece... | 12/18/2007 |
| 7306411 | Drill with groove width variation along the drill and double margin with a thinning section at the tip In a drill in which a chip discharge groove twisted in the shape of a spiral relative to an axis is formed in the outer periphery of the tip section of a roughly cylindrical drill body that rotates around the axis, and a cutting edge is formed on the intersecting ri... | 12/11/2007 |
| 7296954 | Drilling tool for cutting cast materials A drill for hard materials, comprising webs that are subdivided by means of cutting grooves, and at least one principal cutting edge, each of which is provided with a cutting corner and a transition to a chisel edge. At least some sections of the principal cutting e... | 11/20/2007 |
| 7293945 | Non-rotary cutting tool and process of machining scroll member by using the same A non-rotary cutting tool which is to be moved relative to a workpiece in a predetermined direction for cutting the workpiece, with its rake face being held substantially perpendicular to the predetermined direction. The cutting tool includes (a) a generally cylindr... | 11/13/2007 |
| 7275896 | Grooving cutting insert having a circular cutting edge provided with relief recesses A cutting insert for grooving operations includes an elongated clamping portion and a cutting portion. The cutting portion has a chip rake surface and a relief surface meeting at a cutting edge. The relief surface has a plurality of recesses extending to the chip ra... | 10/02/2007 |
| 7270504 | Cutting tool for metal working as well as method in the production of cutting tools A cutting tool and a method for the production of cutting tools for metalworking characterized in that the holder body of the tool first is submitted to a surface hardening that results in the formation of compressive stresses in the surface and then submitted to a ... | 09/18/2007 |
| 7267513 | Spade drill bit A spade drill bit (202) comprises a shaft (204) having one end (205) configured to be engaged to a driving tool and a cutting head (206) attached at an opposite end of said shaft (204). The cutting head (206) includes a cent... | 09/11/2007 |
| 7252465 | Drill for chip removing machining A drill for chip removing machining, including a front tip including at least one cutting edge and a chip flute. The chip flute is countersunk in an envelope surface of a body of the drill and extends rearwardly from the cutting edge. The chip flute is generally def... | 08/07/2007 |
| 7246976 | Spade bit An embodiment of a spade bit has straight grooves at a lead angle of 4 to 8 degrees placed on flat edges of the spade bit. In an alternative embodiment, a spade bit has two steps of straight grooves at a lead angle of 4 to 8 degrees placed on flat edges of the spade... | 07/24/2007 |
| 7244081 | Drill adapter for drill having central and lateral cutting inserts A drill adapter has a resilient insert retaining portion at one end, a drive stem at the second end, and an adapter seating portion between the two. The insert retaining portion includes first and second resilient clamping members which are rotationally 180° apart.... | 07/17/2007 |
| 7241089 | Drill insert having curved cutting edges A spade drill insert and drilling tool assembly is provided wherein the spade drill insert body comprises curved cutting edges and a lip groove having a trough substantially parallel to a plane formed through each adjacent curved cutting edge, which provides a signi... | 07/10/2007 |
| 7237985 | Cutting plate for rotating tools A cutting plate for rotating tools includes a major cutting edge connected to a minor cutting edge in a radial extension thereof over a cutting corner. A common face joins a longitudinal side of the major cutting edge and the minor cutting edge, while a major flank ... | 07/03/2007 |
| 7237992 | Process of machining scroll member by using non-rotary cutting tool A process of machining a scroll member of a scroll compressor by using a non-rotary cutting tool. The non-rotary cutting tool is moved relative to a workpiece in a predetermined direction for cutting the workpiece, with its rake face being held substantially perpend... | 07/03/2007 |
| 7237986 | High speed metal drill bit A metal cutting drill bit has a shank portion, a flute portion defining a helix angle and a tip. The tip has a primary cutting edge extending to an outer periphery of the drill bit. The primary cutting edge has a rake face defining a rake angle. The rake angle is di... | 07/03/2007 |
| 7226250 | Tool and method for forming a lug hole A single tool that provides multiple machining operations for forming a lug hole through a vehicle wheel hub includes an end portion having a first diameter and a mid-portion having a second diameter that is greater than the first diameter. A spade drill bit is moun... | 06/05/2007 |
| 7207755 | Tool arrangement and tool for chip removal In a cutting tool arrangement and a tool for chip removing machining, the cutting tool arrangement comprises a tool, fastening arrangement, and a shank. The tool is a one-piece unit. The axial channel is of non-circular cross-section to provide a key grip. An end of... | 04/24/2007 |
| 7207752 | Reamer and method for reaming The present invention discloses a reamer (20) and a method for reaming, for enlarging a pre-existing hole in a workpiece by rotational and axial cutting. The reamer (20) includes a body (24) extending from a shank (22). The body (24 | 04/24/2007 |
| 7201542 | Solid drill bit for machine tools A solid drill bit for machine tools. has a bit body and two movable inserts located a radial distance apart in insert seats of the bit body. The inserts have a rectangular or quadratic contour, project axially over the bit body with their major cutting edges and ove... | 04/10/2007 |
| 7201543 | Twist drill and method for producing a twist drill which method includes forming a flute of a twist drill A twist drill and method for producing is provided. The cutting edge structure has a first portion at the drill tip portion and a second portion disposed away from the drill tip portion. The flute wall extends further into the land structure at the second portion of... | 04/10/2007 |
| 7192224 | Drilling tool A double or multiple-edged drilling tool has a base body rotatable about a drilling axis, and at least two plate seats arranged on the front face for accommodating identical interchangeable cutting plates. The cutting plates each have a machining face, and a clearan... | 03/20/2007 |
| 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 |
