Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7441484 | CNC prescribe method to encourage chip breaking A method for pre-scribing a workpiece to facilitate chip breaking when machining the workpiece on the same machine with the same tooling used for cutting, utilizing an invokable CNC cycle of the CNC machine completing the workpiece machining. The machine includes a ... | 10/28/2008 |
| 7337523 | Methods and apparatus for an annular core cutter An annular core cutting apparatus includes a cutting head including a generally cylindrical sidewall having a first end and a second end, wherein the first end has a cutting edge, and wherein the sidewall includes a plurality of openings having at least one sharpene... | 03/04/2008 |
| 7195427 | Cutting insert with an array of surfaces receiving clamping forces A cutting insert includes a body that forms top and bottom surfaces, and a center hole intersecting at least the top surface (e.g., a through-hole). A portion of the top surface which extends around the center hole includes an array of projections radiating laterall... | 03/27/2007 |
| 7128501 | Lathe tool assembly A lathe tool assembly includes a pair of set screws that reduce vibration of a work piece that is being machined. A clamp set screw passes through a clamping assembly to a chip breaker that covers a cutting bit. The end of the clamp set screw bears against the chip ... | 10/31/2006 |
| 7121768 | Cutting head for machine tool The invention concerns a cutting head (13) to be secured in an adapter (9) in a machine tool for chip removing machining. The cutting head (13) comprises a flange with a first side creating a coupling surface (4) adapted for being secured... | 10/17/2006 |
| 7063487 | Tool and cutting insert for the fine turning of grooves in workpieces A tool for the fine-turning of grooves in workpieces including a basic body having a rearwardly extending mounting part, and a forwardly projecting bracket. The bracket includes a narrow neck part and an enlarged support part disposed at an end of the neck part. The... | 06/20/2006 |
| 6969218 | Profile turning tool The profile turning tool is used for rough-turning and dressing circumferential and flat surfaces, in particular of workpieces made of light metals. It consists of a holder (10) with a receiver (16) for a diamond cutting head (18) as well as a c... | 11/29/2005 |
| 6957933 | Threading insert with cooling channels A metalworking apparatus includes a threading insert with a channel-less chip breaker and a holder for holding the threading insert. The threading insert includes (i) one cooling channel disposed on the top side of the threading insert for each crest and each valley... | 10/25/2005 |
| 6609447 | Chip shield for facing tool A facing tool includes a fixture that securely holds a workpiece, and a fixture retainer that secures the fixture and workpiece against axial and radial movement during a facing operation. In one embodiment, the fixture includes a two piece construction t... | 08/26/2003 |
| 6471448 | Cutting tool having liquid-spraying nozzles for controlling chip formation A metal workpiece is cut by rotating the workpiece while pressing the cutting edge of a cutting insert thereagainst for removing a chip from the workpiece. A first liquid jet is directed from a first nozzle toward an upper surface of the cutting insert fo... | 10/29/2002 |
| 6460438 | Facing tool A facing tool includes a fixture that securely holds a workpiece, and a fixture retainer that secures the fixture and workpiece against axial and radial movement during a facing operation. In one embodiment, the fixture includes a two piece construction t... | 10/08/2002 |
| 6443672 | Cutting tool with nozzle A cutting tool includes a nozzle for directing coolant toward an insert seat disposed in the tool. The nozzle includes a bore which directs coolant toward a location on the seat that is spaced from a center hole in which the nozzle is mounted. A rear end ... | 09/03/2002 |
| 6394709 | Tool holder having a clamp plate for transmitting clamping forces from a clamping arm to a cutting insert A cutting insert is clamped in a pocket of a holder by a top clamp assembly which includes a clamp arm screwed to the holder, and a clamp plate interposed between the insert and a front part of the clamp arm. The clamp plate is formed of a harder and more... | 05/28/2002 |
| 6299388 | Universal tool holder collant delivery adapters Universal tool holder coolant delivery adapters have adapter bodies which are removably attachable to a tool holder by at least one fastening device, the adapter located between an attachment end of the tool holder and a distal end of the tool holder, the... | 10/09/2001 |
| 6176649 | toolholder A toolholder (1) for clamping a cutting insert (6), the toolholder including a rigid base jaw (2), an upper clamping jaw (3) defining with the base jaw a longitudinally extending insert receiving slot for releasably receiving the cutting insert in a prede... | 01/23/2001 |
| 6170368 | Detachable chipbreaker for a cutting insert A cutting insert which includes a holder that contains a pocket and a hard insert that has a rake surface. The hard insert is contained within the pocket so as to present a cutting edge. The cutting insert also includes a chipbreaker which comprises a pla... | 01/09/2001 |
| 6045300 | Tool holder with integral coolant passage and replaceable nozzle A tool holder for holding cutting inserts for machine tool work includes an integral cooling passage therethrough. Various coolant nozzles are interchangeably installable in the holder, to provide different amounts of coolant fluid flow depending upon the... | 04/04/2000 |
| 6026719 | Method of breaking chips and apparatus therefor A method of breaking chips is disclosed in which the chip generated during cutting is broken into small pieces by increasing the shear strain at the shear plane, which is the joint between the chip and the workpiece, until fracture occurs at the shear pla... | 02/22/2000 |
| 5901623 | Cryogenic machining An apparatus for cutting chips from a workpiece includes a cutting tool having a rake face and a flank face, the rake face including a cutting edge. A chip breaker is positioned adjacent the rake face for lifting a chip from the rake face after the chip i... | 05/11/1999 |
| 5899268 | Downhole milling tool A tool for cutting or milling casing in a well is disclosed. It includes a plurality of blades extending outwardly to a substantially radial position for cutting the walls of casing strings and removing a predetermined length of the casing strings in a cu... | 05/04/1999 |
| 5810079 | Downhole milling tool A tool for cutting or milling casing in a well is disclosed. It includes a plurality of blades extending outwardly to a substantially radial position for cutting the walls of casing strings and removing a predetermined length of the casing strings in a cu... | 09/22/1998 |
| 5584616 | Cutting insert An indexable cutting insert having a polygonal body including top and bottom surfaces connected by a peripheral wall having sides and corners. In a generally diamond shaped embodiment, opposite corners and the adjacent sides form cutting edges at their ju... | 12/17/1996 |
| 5456312 | Downhole milling tool A tool for cutting or milling casing in a well is disclosed. It includes a plurality of blades extending outwardly to a substantially radial position for cutting the walls of casing strings and removing a predetermined length of the casing strings in a cu... | 10/10/1995 |
| 5373900 | Downhole milling tool A tool for cutting or milling casing in a well is disclosed. It includes a plurality of blades extending outwardly to a substantially radial position for cutting the walls of casing strings and removing a predetermined length of the casing strings in a cu... | 12/20/1994 |
| 5352072 | Cutting tool with guide for trimming laminate A cutting tool for trimming a laminate flush with the surface of a substantially perpendicular laminate. The cutting tool includes a ball bearing guide assembly and a glue well shaft section. This glue well shaft section prevents softened glue encountered... | 10/04/1994 |
| 5348065 | Cutter blade arrangement A cutting blade for working logs to timber form while simultaneously removing wood chips which includes a pair of adjacent recesses formed in the periphery of the blade. A knife is bolted in the cutting blade in a first recess and a wear insert is separat... | 09/20/1994 |
| 5333659 | Knife holder A chipping cutter head including a double-edged knife and support structure mounting the knife in a pocket provided at the periphery of a cutter head body. The support structure includes a block member fastened by screws to the floor of the pocket. Adjust... | 08/02/1994 |
| 5297630 | Downhole milling tool A cutting tool (22) includes a plurality of pivoted blades (36) for swinging outwardly to an expanded radial position for first cutting the walls of multiple casing strings (10, 11), and then removing a predetermined length of the casing strings (10, 11) ... | 03/29/1994 |
| 5150755 | Milling tool and method for milling multiple casing strings A cutting tool (22) includes a plurality of pivoted blades (36) for swinging outwardly to an expanded radial position for first cutting the walls of multiple casing strings (10, 11), and then removing a predetermined length of the casing strings (10, 11) ... | 09/29/1992 |
| 5074356 | Milling tool and combined stabilizer A milling tool (3-5; 51-53) in combination with a stabilizer therefor has a milling tool with a body (51) with a plurality of radially extending and circumferential blades (3) diposed about the body. The lower portion of the body (51) has a portion (57) u... | 12/24/1991 |
| 5058666 | Cutting tool for removing materials from well bore A cutting tool (10) for removing members downhole from a well bore and adapted to be inserted within a well from the upper end (12) of the casing (14). The cutting tool (10) includes a plurality of elongate blades (32) on the cylindrical body (18) of the ... | 10/22/1991 |
| 5017060 | Rotary cutting tool There is disclosed a rotary cutting tool having a cutter body and at least one pair of end and peripheral cutting edges provided on the cutter body. A covering of a generally cylindrical shape is disposed rotatably relative to the cutter body so as to sur... | 05/21/1991 |
| 4978260 | Cutting tool for removing materials from well bore A cutting tool (10) for removing members downhole from a well bore and adapted to be inserted within a well from the upper end (12) of the casing (14). The cutting tool (10) includes a plurality of elongate blades (32) on the cylindrical body (18) of the ... | 12/18/1990 |
| 4907920 | Milling cutter for honeycomb core material A milling cutter tool for cleanly and smoothly cutting honeycomb core material is disclosed. The cutter tool includes a circular saw blade sharpened to a knife edge. A bevel extends from the upper surface towards the sharp peripheral edge. A plurality of ... | 03/13/1990 |
| 4794836 | Honeycomb core cutting tool The invention is a honeycomb core cutting tool wherein a primary cutter is used to cut the core to shape and secondary cutters are used to immediately shred that portion of the core being removed. The primary cutter is typically a commercially available c... | 01/03/1989 |
| 4677886 | Honeycomb cutter and chip breaker/chaf remover A tool in the form of a honeycomb cutter/chip breaker assembly for conveniently and efficiently machining a workpiece of honeycombed material or the like. The assembly includes a honeycomb cutter member having a cutting knife and a shaft. The cutting knif... | 07/07/1987 |
| 4620821 | Cutting device for cutting honeycomb light constructions A cutting device for cutting thin-walled honeycomb profiles of metal or plastics for airplane technology includes a cutter which has sharply ground saw-shaped teeth at its periphery; the steep flanks of individual teeth extend opposite to the direction of... | 11/04/1986 |
| 4595322 | Spade drill bit An improved spade type bit for use in drilling metal, masonry and the like. This bit has a replaceable transverse bar of hardened material in the tip thereof with symmetrical end surfaces sloping away from a central chisel point located on the axis of the... | 06/17/1986 |
| 4275626 | Rotary cutting tool The proposed cutting tool comprises a holder, wherein a working head is rotatably mounted. The working head carries at least one edge whose cutting lip is defined by intersecting of its face and relief surfaces. The cutting tool incorporates a chip-breaki... | 06/30/1981 |
| 4213358 | Rotary cutting tool A rotary cutting tool according to the invention comprises a supporting element secured in the tool body opposite to the cutting zone, said element interacting with the tool spindle and intended to load the spindle with forces which approach closely the c... | 07/22/1980 |
