| Patent Number |
Title Of Patent |
Date Issued |
| RE35538 |
Sintered body for chip forming machine |
June 17, 1997 |
| The present invention relates to a sintered body for chip forming machining containing at least one hard constituent comprising a carbide, nitride and/or carbonitride of a metal of group IVB, VB or VIB in the periodical system and a binder metal based upon Co, No and/or Fe, in which the |
| RE34167 |
Drill bit and roller cutter for said drill bit |
January 26, 1993 |
| A drill bit has a plurality of roller cutters mounted on a front face of the drill bit. The roller cutters are mounted in pairs which are equidistantly spaced from an axis of rotation of the drill bit. Each roller cutter is rotatably mounted in a saddle affixed on the front face. The |
| 5161859 |
Excavating tool cutting insert |
November 10, 1992 |
| The invention relates to a tool for breaking or excavating of hard material, such as asphalt. The tool comprises a cutting insert (11) secured to a tool body (10). For purposes maintaining the required cutting force low while ensuring that the risk is low that the cutting insert (11) |
| 5032174 |
Powder particles for fine-grained hard material alloys and a process for the preparation of powd |
July 16, 1991 |
| The present invention relates to powder particles consisting of hard principles and binder metal for the manufacture of superior, uniquely fine-grained hard material alloys and to a procedure for the preparation of said particles.The preparation is performed in an economical way because |
| 5004380 |
Cutting insert |
April 2, 1991 |
| A cutting insert for a slot milling tool is provided with recesses in the cutting corners behind each second cutting edge in the flank wear direction of the cutting insert. A shank of the recess and the second cutting edge form a narrow flange which limits the surface exposed to flan |
| 4938538 |
Excavating tool cutting insert |
July 3, 1990 |
| The invention relates to a tool for breaking or excavating hard material, such as asphalt. The tool comprises a cutting insert (11) secured to a tool body (10). For purposes of maintaining the required cutting force low while ensuring that the risk is low that the cutting insert (11) wil |
| 4908071 |
Method of manufacturing tubes of zirconium alloys with improved corrosion resistance for thermal |
March 13, 1990 |
| The invention relates to a method of making tubes of Zirconium alloys containing 1-5 percent by weight of alloying elements such as Sn, Fe, Cr and Ni. According to the invention an improved corrosion resistance can be reached by means of annealing after extrusion and between cold rolling |
| 4894090 |
Powder particles for fine-grained hard material alloys |
January 16, 1990 |
| The present invention relates to powder particles consisting of hard principles and binder metal for the manufacture of superior, uniquely fine-grained hard material alloys and to a procedure for the preparation of said particles.The preparation is performed in an economical way because |
| 4849300 |
Tool in the form of a compound body and method of producing the same |
July 18, 1989 |
| Tools for machining etc can according to the invention be made better and cheaper by being composed of a compound material forming core and cover resp of the tool. The core consists thereby of a material which is situated in the gap between cemented carbide and high speed steel regar |
| 4843039 |
Sintered body for chip forming machining |
June 27, 1989 |
| The present invention relates to a sintered body for chip forming machining containing at least one hard constituent comprising a carbide, nitride and/or carbonitride of a metal of group IVB, VB or VIB in the periodical system and a binder metal based upon Co, No and/or Fe, in which the |
| 4832136 |
Drill bit and roller cutter for said drill bit |
May 23, 1989 |
| A drill bit has a plurality of roller cutters mounted on a front face of the drill bit. The roller cutters are mounted in pairs which are equidistantly spaced from an axis of rotation of the drill bit. Each roller cutter is rotatably mounted in a saddle affixed on the front face. The |
| 4820482 |
Cemented carbide body with a binder phase gradient and method of making the same |
April 11, 1989 |
| The present invention relates to a cemented carbide body, preferably for rock drilling, mineral cutting and wear parts, in which the content of binder phase in the surface is lower and in the center higher than the nominal content. In the center there is a zone having a uniform content o |
| 4818153 |
Cutting insert having means for detecting wear |
April 4, 1989 |
| Cutting insert for chip-removing machining comprising an upper face (11), a lower face (12) and, connecting those, edge surfaces (13). Lines of intersection between the edge surfaces and the upper face form cutting edges. The insert (10) has a substrate (14) comprising a metal and a |
| 4805705 |
Drill bit |
February 21, 1989 |
| A drill bit for use in a drill string comprising a set of a plurality of central rod members and a set of a plurality of tubular members surrounding said rod members. The drill bit is provided with a longitudinally extending flushing channel which communicates with an annular space b |
| 4801224 |
Tool and insert for chip removal |
January 31, 1989 |
| The invention relates to a tool for chip removal comprising a cutting insert mechanically clampable within a slot of a holder. The insert is clamped by the resilient force arising during deflection of a clamping arm provided in the holder. The insert and the clamping arm are engageable a |
| 4798635 |
Ferritic-austenitic stainless steel |
January 17, 1989 |
| The present invention presents a ferritic-austenitic Cr-Ni-N-Steel alloy with a stable austenite phase, high corrosion resistance and good weldability, said steel alloy consisting essentially of the following elements by weight; max 0.06% C, 21-24.5% Cr, 2-5.5% Ni, 0.05-0.3% N, max 1 |
| 4776413 |
Button insert for rock drill bits |
October 11, 1988 |
| A button insert (10) for rock drill bits comprising a base portion (11) intended to be secured in the body of the drill bit and a cutting tip (12) being integral with the base portion (11). The cutting tip (12) comprises a portion (13) that is concave in an arbitrary longitudinal section |
| 4772339 |
Method of treating cemented carbide bodies regarding their compositions and structures |
September 20, 1988 |
| The present invention relates to a unique and advantageous method making possible a superior technical and economical separation of cemented carbide bodies based upon their compositions and structures.The critical point of the method is, that after formation of a melt by melting of the b |
| 4770259 |
Drill tool |
September 13, 1988 |
| A drill tool for rotary and/or percussion drilling includes a drill string and a cutting apparatus connected to a lower end of the drill string. The cutting apparatus has an intermediate portion which is rotatable with the drill string and includes an outer surface, a reamer is mounted |
| 4765953 |
High nitrogen containing duplex stainless steel having high corrosion resistance and good struct |
August 23, 1988 |
| According to the invention there is a high nitrogen containing duplex stainless steel with high corrosion resistance and good structure stability. Characteristic is the analysis of the alloy being in % by weight max 0.05% C, 23-27% Cr, 5.5-9.0% Ni, 0.25-0.40% N, max 0.8% Si, max 1.2% |
| 4760887 |
Drill element for percussion drilling |
August 2, 1988 |
| The invention relates to a drill element for percussion drilling, the element having a cylindrical screw thread having one single entry. The screw thread, that is intended for thread diameters of less than 30 mm, has a pitch of less than 12 mm, a shoulder angle of less than 69.degree., |
| 4755085 |
Indexable cutting insert |
July 5, 1988 |
| The invention relates to an indexable cutting insert for recessing. The insert (10) has a triangular basic shape and comprises three cutting edges. Each cutting edge is arranged at a projection (16) which at least partly is asymmetrically arranged relative to a line parallel with the |
| 4749051 |
Drill steel |
June 7, 1988 |
| A drill steel for percussion drilling has four longitudinally extending grooves for removal of cuttings. The grooves are shaped such that, in comparison with a hexagonal drill steel, there is obtained an enlarged space for cuttings and a less consumption of material with maintenance of |
| 4744704 |
Drill |
May 17, 1988 |
| A drill comprising a drill body (11) and a drill tip (22). The drill tip is detachably secured in a slot in the drill body. The drill tip (22) consists of a tip body and cutting portions. The drill body (11) and the tip body comprise cooperating surfaces in order to receive the radial an |
| 4743515 |
Cemented carbide body used preferably for rock drilling and mineral cutting |
May 10, 1988 |
| The present invention relates to cemented carbide bodies preferably for rock drilling and mineral cutting. By having the bodies comprising a core of cemented carbide containing eta-phase surrounded by a surface zone of cemented carbide free of eta-phase and having a low content of cobalt |
| 4734339 |
Body with superhard coating |
March 29, 1988 |
| The present invention relates to a compound body consisting of a substrate with a surface coating of one or more dense, finegrained diamond layers, where the diamond grains are directly bonded to each other. Extreme hardness makes the compound body suitable for wear parts- and tools |
| 4733915 |
Device for supplying fluid at tools for breaking solid material |
March 29, 1988 |
| A device for supplying fluid at a socket for axial not displaceably mounted tools for breaking of solid material, fluid is arranged to be supplied to a nozzle adjacent to the tool when a working tool is subjected to a counteracting force. |
| 4725173 |
Tool coupling device |
February 16, 1988 |
| The present invention relates to a tool coupling device comprising a coupling element (10) attachable to a machine tool and a tool adapter (11) intended to clamp a tool for chip forming machining. A plug (18) on the adapter (11) is related to a contact surface (30;38) that is intended to |
| 4714384 |
Tool and insert, preferably for turning |
December 22, 1987 |
| The invention relates to a tool preferably for turning, and an insert therefor. The tool comprises a shank (11) upon which a loop-shaped outer disc (12) is secured. An inner disc (13) is displaceably arranged between the arms of the outer disc (12). A screw (15) is arranged to push the |
| 4712952 |
Drill for generating of holes in a work piece |
December 15, 1987 |
| The invention relates to a drill for generating of holes in a work piece, preferably in a composite material. The drill comprises a cylindrical shank portion, two cutting portions projecting in the axial and radial direction of the drill and two chip gullets. The cutting portions are |
| 4707384 |
Method for making a composite body coated with one or more layers of inorganic materials includi |
November 17, 1987 |
| A chemical vapor deposition method for the production of a composite body with one or more polycrystalline diamond layers, essentially free of intercrystalline binder phase, on a substrate of one of: (a) metalbonded hardmaterial compound; (b) ceramic material; or (c) a metal or an alloy, |
| 4705321 |
Device for supplying fluid to a tool for breaking hard material |
November 10, 1987 |
| The invention relates to a device for supplying fluid to a tool for breaking solid material, said tool being mounted in a holder, and that a nozzle is arranged in or in connection to the tool. A connection element for fluid transmission is arranged to bridge the opposing contact surfaces |
| 4698205 |
Body with internal channels and methods of producing the same |
October 6, 1987 |
| A method of producing coolant channels in a metallic object such as a cutting tool whereby a blank is formed by at least one working step such as compaction etc. and the channels are formed by cores whereby the working takes place as a compaction at a temperature of at least 950.degr |
| 4687387 |
Cutting tool |
August 18, 1987 |
| A cutting tool, a drill for instance, having a drill body and a cutting portion. The cutting portion comprises a central cutting insert and two peripheral cutting inserts. A cutting edge extends along the three inserts. The inserts comprise surfaces for facilitating a tight connection |
| 4687368 |
Thread structure for percussion rock drilling |
August 18, 1987 |
| A thread structure for interconnecting two elements in a percussion drill string comprising an interior cylindrical thread and an exterior cylindrical thread. The threads have abutting flanks which are straight along their abutting contact portions. The clearance (a) between the bott |
| 4684298 |
Drill |
August 4, 1987 |
| The invention relates to a drill for metal drilling, comprising a drill body and a drill tip provided with cutting portions. The drill tip is detachably secured to the drill body by means of fastening devices, which are arranged on opposite sides of the centerline (CL) of the drill. The |
| 4681488 |
Cutting insert |
July 21, 1987 |
| The invention relates to an indexable cutting insert having a polygonal basic shape for chip forming machining, preferably for milling. The insert comprises an upper face and a lower face and edge surfaces connecting them. Each corner portion of the insert comprises a plurality of chamfe |
| 4681487 |
Insert for chip removing machining |
July 21, 1987 |
| The invention relates to an insert, preferably for turning. The insert, which has a triangular basic shape, has three chip breakers in its upper flat face. A cutting edge is formed at the intersection line between a chip breaker and an edge surface. The chip breaker is formed with a |
| 4669931 |
Drill for generating a hole in a work piece |
June 2, 1987 |
| A drill for drilling of work pieces, preferably of composite materials, comprising a cylindrical shank portion (11), a first cutting edge (13) in form of an arc of a circle arranged in the cutting end of the drill and a second cutting edge (16) perpendicularly connected thereto. The edge |
| 4668087 |
Sensor for measurement of the deflection and/or torsion of an oblong machine element |
May 26, 1987 |
| A sensor (10) for measurement of the deflection of a machine element comprises a detecting portion, a light source, a light detector, and connected guides. An electronic data processing unit is connected to the sensor. The detecting portion comprises a tuft of optical fibers, a focus |
| 4665618 |
Device for a motorized saw |
May 19, 1987 |
| A device for a motorized saw wherein the saw guide bar consists of a reciprocating toothed saw blade (13) and a relative to this stationary support plate (12). One circular disc (14) is loosely laid into an elongated recess (15) in the support plate (12) such that it is movable relat |
| 4655648 |
Router tool and insert for same |
April 7, 1987 |
| A router tool and a cutting insert for transverse cutting of a work piece, preferably of fiber reinforced plastics. The router comprises a shank and a cylindrical router body having chip gullets and sites that have received cutting inserts. Each insert has a cutting edge which has a numb |
| 4648760 |
Drill and cutting insert therefor |
March 10, 1987 |
| The invention relates to a short-hole drill and a cutting insert therefor, for drilling of metallic work pieces. The drill comprises a drill shank with two chip flutes formed therein and with two cutting insert sites and two mainly rectangular cutting inserts having mutually identical sh |
| 4642006 |
Tool mounting |
February 10, 1987 |
| A tool mounting between a cutting tool, for example a drill, and a machine spindle, comprising a tool element and a tightening device. The tool element consists of a body and an expandable attachment tap. The attachment tap is formed with grooves to receive a gripping implement of a |
| 4641718 |
Rotary drill bit |
February 10, 1987 |
| A rotary drill bit comprising a cutter bit (10) having a plurality of mutually displaced rows (12-17) of cutting means (11) extending in the circumferential direction of the cutter bit (10). The included cone angle (.alpha.) of the cutter bit (10) is larger than 90.degree. and adapted to |
| 4633998 |
Conveyor system |
January 6, 1987 |
| A conveyor system with upper and lower runs carrying racks for articles dispenses with the usual conveyors for moving the racks along the runs. Instead, the racks are stacked along the runs, and vertical conveyors at the ends of the runs transport the racks between the runs and impel the |
| 4632608 |
Cutting insert |
December 30, 1986 |
| An indexable cutting insert for a variety of turning operations, which mainly has a rhombical or triangular basic form. The cutting corners of the cutting insert are provided with nose portions. Each nose portion is expanded in the width direction at an acute-angled corner mainly sym |
| 4632607 |
Indexable cutting insert |
December 30, 1986 |
| An indexable cutting insert (10) for a tool (18) adapted to cut internal right-angled corners in a work piece (19). The insert (10) has a square configuration and comprises a top major surface (11), a bottom major surface (12) and connecting side surfaces (13). The lines of junction |
| 4632606 |
Cutting tool and cutting insert |
December 30, 1986 |
| An indexible insert is mounted on a shank. The insert includes angled centering surfaces which engage angled localizing surfaces on the shank. The insert includes abutment surfaces which engage support surfaces on the shank. The point of contact between the abutment and support surfaces |
| 4629661 |
Cutting insert and method of making the same |
December 16, 1986 |
| The wear resistance and toughness of a coated ceramic insert comprising a ceramic substrate and at least one thin surface layer of ceramic oxide is improved by applying at least one thin intermediate layer of hard borides of the subgroups or of the III-V groups of the periodic table, or |
