Quotables
"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 7992945 | Hollow pick shank In one aspect of the invention, a degradation pick comprises a bolster disposed intermediate a shank and an impact tip. The shank comprises an outer diameter and first and second ends. The shank is coupled to the bolster through the first end and the second end is a... | 08/09/2011 |
| 7946656 | Retention system A retention assembly, comprises a carbide bolster comprising a cavity formed in its base end. A shaft comprises an inserted end disposed within the cavity. The shaft is disposed within a hollow shank which comprises a first end contacting the bolster and a loaded en... | 05/24/2011 |
| 7717523 | Rotary cutting pick A cutting pick comprises an elongate shank and a cutting tip mounted to one end of the shank. The cutting tip has a leading end, a trailing end and a mounting portion for mounting to the shank. The tip has a shape such that it diverges outwardly in a direction from ... | 05/18/2010 |
| 7669938 | Carbide stem press fit into a steel body of a pick In one aspect of the present invention, a high impact resistant tool, having a super hard material is bonded to a cemented metal carbide substrate at a non-planar interface. The cemented metal carbide substrate is bonded to a front end of a cemented metal carbide se... | 03/02/2010 |
| 7637574 | Pick assembly A high impact resistant pick in a holder having a super hard material bonded to a cemented metal carbide substrate at a non-planar interface. The cemented metal carbide substrate is bonded to a front end of a cemented metal carbide bolster. A bore is formed in a bas... | 12/29/2009 |
| 7611210 | Cutting bit body and method for making the same A cutting bit body that is a part of a cutting bit that includes a hard insert that is affixed to the cutting bit body and wherein the cutting bit impinges earth strata. The cutting bit body is an elongate powder metallurgical body member. A method for making a powd... | 11/03/2009 |
| 7594703 | Pick with a reentrant In one aspect of the invention, a pick adapted to degrade man-made or natural formations has a steel body comprising a shank adapted for attachment to a driving mechanism. The pick also has a leading edge opposite the shank which has an inside edge. A bore is dispos... | 09/29/2009 |
| 7413258 | Hollow pick shank In one aspect of the invention, a degradation pick comprises a bolster disposed intermediate a shank and an impact tip. The shank comprises an outer diameter and first and second ends. The shank is coupled to the bolster through the first end and the second end is a... | 08/19/2008 |
| 7396086 | Press-fit pick In one aspect of the invention, a pick comprises a shank attached to a base of a steel body, a cemented metal carbide core press fit into the steel body opposite the shank, and an impact tip bonded to a first end of the core opposite the shank. The impact tip compri... | 07/08/2008 |
| 7384105 | Attack tool In one aspect of the invention, an attack tool is disclosed which has a wear-resistant base suitable for attachment to a driving mechanism, a first cemented metal carbide segment brazed to the base at a first interface, and a second metal carbide segment brazed to t... | 06/10/2008 |
| 7353893 | Tool with a large volume of a superhard material In one aspect of the invention, a tool has a wear-resistant base suitable for attachment to a driving mechanism and also a hard tip attached to an interfacial surface of the base. The tip has a first cemented metal carbide segment bonded to a superhard material at a... | 04/08/2008 |
| 7320505 | Attack tool In one aspect of the invention, an attack tool is disclosed which comprises a wear-resistant base suitable for attachment to a driving mechanism. The wear-resistant base has a shank and a metal segment. A cemented metal carbide segment is bonded to the metal segment... | 01/22/2008 |
| 7204560 | Rotary cutting bit with material-deflecting ledge A cutting bit includes a body having a front surface and a side surface, the side surface including a shoulder below the front surface and extending substantially perpendicular to a central axis of the body, and a ring that is harder than the body attached to the bo... | 04/17/2007 |
| 7179018 | Apparatus and method for working asphalt pavement A method and apparatus for working asphalt pavement, comprising one or both of a mechanical, hydraulic, electric, or pneumatic means for providing high-speed rotation; a rotary tool comprising a first end comprising a working surface and a second end adapted for con... | 02/20/2007 |
| 6986552 | Hardened rotary cutting tip An insert for a cutting tool has a conical cutting tip, and axially behind the cutting tip is a mid-section. Behind the mid-section is a cylindrical base. Where the insert is for use on a tool of a milling machine, the base has a diameter of at least 0.800 inch so a... | 01/17/2006 |
| 6908688 | Graded composite hardmetals A multiple-region hardmetal tool piece. The tool piece includes a hardmetal body including a hard particle component and a binder; an additional body, the additional body including a hardmetal body having a hard particle component and a binder; a metal body or a cer... | 06/21/2005 |
| 6846045 | Reverse taper cutting tip with a collar A cutting tool has tool body with a seat at a forward end thereof. A hard cutting insert is bonded into the seat. The insert is made of a hard material and Ahas an elongate central portion having a maximum upper diameter and a maximum lower diameter that is less tha... | 01/25/2005 |
| 6758530 | Hardened tip for cutting tools A cutting tool has a tool body with a seat at the forward end thereof and a cutting insert in the seat. The insert has a central portion made of a hardened material, and surrounding the central portion is a softer metal sleeve. Surrounding the metal sleeve is a coll... | 07/06/2004 |
| 6739327 | Cutting tool with hardened tip having a tapered base A cutting tool has a centrally located tungsten carbide insert brazed into a seat at the forward end of the tool. The seat has a circular mouth and rearward of the mouth is a frustoconical inner wall. At the bottom of the seat is a transverse surface. A tungsten car... | 05/25/2004 |
| 6733087 | Pick for disintegrating natural and man-made materials An attack tool for working natural and man-made materials that is made up of one or more segments, including a steel alloy base segment, an intermediate carbide wear protector segment, and a penetrator segment comprising a carbide substrate that is coated with a sup... | 05/11/2004 |
| 6709065 | Rotary cutting bit with material-deflecting ledge A cutting bit includes a steel body on which a carbide cutting tip is brazed. Disposed rearwardly of a rearwardmost end of the tip, on a tapered side surface of a head of the bit body is an annular ledge which extends laterally outwardly sufficiently far to deflect ... | 03/23/2004 |
| 6663186 | Cutting bit A cutting bit has a bit body, and a cutting element formed as a trihedron with three faces which form three rock destructing blades, so that the cutting bits can be turned to orient alternatively a respective one of the rock destructing blades in a cuttin... | 12/16/2003 |
| 6607249 | Conical bit penetrator pocket protector for earth displacement equipment A conical bit penetrator pocket protector for earth displacement equipment for maximizing penetration into hard rock during trenching, drilling, mining, or boring operations. The bit penetrator pocket protector for earth displacement equipment includes a ... | 08/19/2003 |
| 6601620 | Stump grinding bit and tip therefor A stump cutter includes a rotary drum, holders mounted on the drum, and cutting bits mounted in respective bores of each holder for rotation relative thereto. Each cutting bit includes a shank having a pocket formed in a front end thereof in which the cut... | 08/05/2003 |
| 6554369 | Cutting tool with hardened insert A cutting tool has a tool body with a hardened insert brazed into a cylindrical seat having a given diameter at the forward end of the tool body. The insert has a cutting tip portion, a generally cylindrical base portion positioned behind the tip, and a f... | 04/29/2003 |
| 6508318 | Percussive rock drill bit and buttons therefor and method for manufacturing drill bit A percussive rock drill bit includes a head portion with a forward surface surrounded by a peripheral surface. The peripheral surface supports a wreath of peripheral buttons. Front buttons are mounted to the forward surface inside the wreath of peripheral... | 01/21/2003 |
| 6478383 | Rotatable cutting tool-tool holder assembly An assembly that includes a rotatable cutting tool and a tool holder. The rotatable cutting tool has an integral enlarged dimension portion mediate which has a periphery and a rearwardly facing surface which defines a generally planar shoulder. The tool h... | 11/12/2002 |
| 6428111 | Round-shaft cutter A round-shaft cutter with a cutter head and a cutter shaft, wherein the cutter head has a cutter tip which is inserted with a base element into a receiver of the cutter head and is there fixed in place. To increase the wear resistance of the round-shaft c... | 08/06/2002 |
| 6375272 | Rotatable cutting tool insert A rotatable cutting tool for impinging the earth strata wherein the cutting tool has a tool body with an axial forward end and an axial rearward end. A hard insert is at the axial forward end and a retainer is carried by a shank portion near the axial rea... | 04/23/2002 |
| 6354771 | Cutting or breaking tool as well as cutting insert for the latter A cutting insert for a cutting or breaking tool, which can be mounted in a tool holder that can be rotated about its longitudinal axis, especially for a lathe chisel, has an essentially conical tip, a transition region and a foot for connecting to a tool ... | 03/12/2002 |
| 6283844 | Tool component A tool component is provided which has particular application in mining picks and drag bits. The component comprises an abrasive compact having a flat working surface presenting a cutting edge around its periphery, and an opposite surface bonded to a ceme... | 09/04/2001 |
| 6270165 | Cutting tool for breaking hard material, and a cutting cap therefor A rotatable tool for breaking hard material includes an elongated tool body and a cutting cap mounted on the tool body. The cutting cap includes a generally conical front tip having a maximum first diameter (d), and a rear base portion having an outer per... | 08/07/2001 |
| 6199451 | Tool having a tungsten carbide insert An excavating tool has a tungsten carbide insert which is more wear resistant and not subject to breakage because of bring too brittle. The insert has a semispherical tip, a divergent midsection and a base with a conical rear surface. The insert is made w... | 03/13/2001 |
| 6199956 | Round-shank bit for a coal cutting machine A round-shank bit for a coal cutting machine or the like, having a bit head and a bit shank, wherein the bit head has a bit tip, maintained by a base element in a receptacle of the bit head. Starting at the base element, the bit tip tapers in a direction ... | 03/13/2001 |
| 6196636 | Cutting bit insert configured in a polygonal pyramid shape and having a ring mounted in surrounding relationship with the insert A cutting tool configuration includes a cutting bit insert configured in the shape of an octagonal pyramid. The cutting bit insert includes a number of portions, each of which has faces which slope at different angles with respect to the longitudinal axis... | 03/06/2001 |
| 6102486 | Frustum cutting bit arrangement A frustum cutting insert having a cutting end and a shank end and the cutting end having a cutting edge and inner walls defining a conical tapered surface. First walls in the insert define a cavity at the inner end of the inner walls and second walls defi... | 08/15/2000 |
| 6051079 | Diamond coated cutting tool insert A wear resistant, diamond enhanced cutting tool for excavating is disclosed. The cutting tool includes a cutting insert having a diamond coated cutting tip brazed to the cutting insert. The cutting tool is formed by brazing the insert to a tool body with ... | 04/18/2000 |
| 6019434 | Point attack bit A point attack bit has an enlarged head, an integral and coaxial shank extending from the base of the head, and a tip extending from the other end of the head and having a generally frustoconical end with an odd number of side faces disposed between the e... | 02/01/2000 |
| 6003623 | Cutters and bits for terrestrial boring Drill bit cutters and drill bits equipped with the cutters. The cutter is mounted on a bit to present the formation with a radiused, curving, side wall cutting face that is concave in one dimension and convex in another dimension. In a preferred form, the... | 12/21/1999 |
| 5873423 | Frustum cutting bit arrangement A frustum cutting bit arrangement, including a shank portion for mounting in, and to be retained by, a rotary cutting tool body, the shank portion having an axis, an inner axial end, and an outer axial end. A head portion has an axis coincident with the s... | 02/23/1999 |
