Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7357605 | Pilot drill with coupon retainer and hot tapping machine using the same Pilot drill with coupon retainer and hot tapping machine using the same that positively retains a coupon cut out by a hole saw. The pilot drill bit has a shank having a driving end for attachment to a drill driver and a cutting end having a cutting edge thereon, the... | 04/15/2008 |
| 7354228 | Drilling tool for insertion of cabling An improved drilling tool for drilling into and through walls for the purpose of inserting cabling within same, comprising a drill bit and an elongated primary shaft suitably adapted to create a chaseway within a wall during the drilling process. The elongated prima... | 04/08/2008 |
| 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 |
| 7296953 | Deep hole drill A deep hole drill comprising a cutter carrier, a replaceable cutting insert and at least one replaceable guide strip. The cutter carrier is embodied in such a way that it can be used for a predetermined nominal diameter range. In order to adjust the deep hole drill ... | 11/20/2007 |
| 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 |
| 7207750 | Support pad for long hole drill Support pad for a long hole drill head wherein the support pad includes a base body with a bottom surface, at least one side surface and a top surface. The top surface is arranged to function as a wear surface and is defined by a titanium-free wear-resistant coating... | 04/24/2007 |
| 7156588 | Cutting head for rotary cutting tool A cutting head for a rotating cutting tool for metal cutting operations. The cutting head has an axially adjustable cartridge which is an integral single piece. A slit divides the cartridge into a clamping portion and a main body portion, the clamping portion being ... | 01/02/2007 |
| 7090445 | Tool with selectively-biased member A tool for working a workpiece has a slot provided between a pair of extremities at its distal end. The extremities have cutting blades mounted thereon. The slot is configured to receive a plate. The tool has a conduit running along its axis for communication of pre... | 08/15/2006 |
| 7089837 | Combination tool A combination tool including a base body with several reaming blades each having a chamfer and a guide surface, arranged around the circumference of the base body, for reaming a cylinder bore. The combination tool also has at least one grooving blade arranged axiall... | 08/15/2006 |
| 7083367 | Adaptor device for holding a blade An adapter device is disclosed for holding a blade having a first and a second side onto a distal end of a holder of a spade drill. The adapter device includes a body of generally cylindrical configuration, the body having a first and a second extremity. The body de... | 08/01/2006 |
| 7011478 | Spade drill insert having helical margins A spade drill insert and drilling tool assembly is provided wherein the lands of the spade drill insert have helical margins which provide increased stability during cutting operations. The margin may have a helical trailing side or leading side, a parallel helical ... | 03/14/2006 |
| 7001117 | Rotary cutting apparatus A rotary cutting apparatus comprises a rotary shaft assembly having an axis and adapted to hold a cutting tool coaxial with the axis and, a feed mechanism for moving the cutting tool held by the rotary shaft assembly along the axis of the rotary shaft assembly. The ... | 02/21/2006 |
| 6913428 | Tool for the precision machining of surfaces A tool for the precision machining of surfaces in workpieces comprising at least two cutter inserts in the periphery of the tool body and each having at least one defined cutting edge. The cutter inserts are of different materials at least in the region of the at le... | 07/05/2005 |
| 6872035 | Machining tool A machining tool for bores in thin-walled work pieces with at least one cutting plate is recommended that is characterized in that the at least one cutting plate (9, 9′, 9″; 9a, 9′a) is inserted into the circumference surface (15... | 03/29/2005 |
| 6830502 | Reaming tool with a guide shank A reaming tool is capable of reaming out several axially interspaced borings of a workpiece. The reaming tool includes a guide shank that can be clamped into a machine spindle and which can be supported in prepared borings of the workpiece to be machined by using ex... | 12/14/2004 |
| 6682275 | Deep hole drill A deep hole drill for chip-removing drilling in a workpiece includes a body which has a cutting head and an integral cutting part. The body defines a longitudinal axis of rotation and has a longitudinal internal channel which opens into an end face of the... | 01/27/2004 |
| 6602028 | Support pad for a deep hole drill An element which defines a support pad and/or a guide bar adapted to be mounted in a seat of a cutter head of a deep hole drill comprises a body which defines a longitudinal direction and a cross-direction. The body includes an inner mounting side and an ... | 08/05/2003 |
| 6427782 | Noise suppression drilling system The invention encompasses improvements in noise attenuation systems for reducing the audible noise level generated during earth boring operations using a hard surfaced rotary drill bit, and in dual bore-cutting elements for performing sequential first and... | 08/06/2002 |
| 6299391 | Boring tool assembly A boring tool assembly is provided and has a cutting tool mounted on one end thereof and permits the boring of a straight hole through a member. The boring tool assembly includes a boring bar having integral guide members disposed thereon that follows beh... | 10/09/2001 |
| 6290438 | Reaming tool and process for its production A reaming tool has a shaft and a shaped head with at least one cutter. The shaped head is produced from a blank having a base body of a base material on its envelope surface with at least one rectilinear or helical groove-shaped recess running around it, ... | 09/18/2001 |
| 6287057 | Device for machining bores in a workpiece and a method for machining bores by employing such device A device for machining bores in a workpiece has a tool with a base member and cutting blades mounted on the base member for machining coaxial bores in the workpiece. At least one guide bearing for supporting the tool is provided. The at least one guide be... | 09/11/2001 |
| 6270295 | Tool with selectively biased member and method of using the same Cutting tool, such as a gun reamer or a drill, with a rotating cutting blade and a rotating support member for supporting the workpiece, where at least one of the cutting blade and the support member are selectively biased. The selective bias on the blade... | 08/07/2001 |
| 6206617 | Reamer with guide surface and method of finishing hole by using the same A reamer including; a generally cylindrical cutter body having (a) a flute formed in an outer circumferential surface of the cutter body and extending from an axially distal end of the cutter body toward an axially proximal end of the cutter body, (b) a c... | 03/27/2001 |
| 6045302 | Drill bit retriever device A cutting tool assembly for cutting holes in a work piece is disclosed. The assembly includes a cutting tool member with a cylindrical cutting member, a shank member, and a guide means providing at least one guide surface tapering from the cutting member ... | 04/04/2000 |
| 6033161 | Revolving pilot tool The invention is a revolving pilot tool. The inventor's revolving pilot has a cylindrical shank which is attached to the tool usually in the center of the bottom of the tool. This shank has a threaded opening in its center. Over the shank is placed a cyli... | 03/07/2000 |
| 6033159 | Material-removing precision machining tool A reamer for material-removing finishing machining of drilled surfaces in workpieces made of metal. The reamer has a blade insert and two guide bars associated with the blade insert. The first guide bar trails the blade insert, as seen in the direction of... | 03/07/2000 |
| 5967707 | Short-hole drill bit A short-hole drill bit and short-hole drilling method in which a drill bit has a unitary body with a substantially V-shaped flute and a support pad are provided. The unitary body has a shank portion and a working portion. The flute extends axially along t... | 10/19/1999 |
| 5957630 | Boring tool assembly A boring tool assembly is provided and has a cutting tool mounted on one end thereof and permits the boring of a straight hole through a member. The boring tool assembly includes a boring bar having integral guide members disposed thereon that follows beh... | 09/28/1999 |
| 5915890 | Method and device for influencing the run of deep hole drilled passages For influencing the run of a deep hole drilled passage in a metallic or non-metallic material a pusher pad (6) variable in strength and position is interposed between the drill rod (2) driving the drill tool (1) or the drill tool (1) itself and the inner ... | 06/29/1999 |
| 5865573 | Boring bar cutting and grinding devices A boring bar for machining of borehole surfaces which are arranged axially spaced from each other, in particular crank-shaft and/or cam-shaft bearing holes. The bar has at least one, and preferably a plurality, of cutting devices and at least one, and pre... | 02/02/1999 |
| 5860773 | Drilling tool with rounded insert support surfaces A drilling tool includes a drill body having axially spaced front and rear ends. The front end includes tangential pockets for carrying cutting inserts spaced by respective radial distances from a center axis of rotation of the drill body. Two chip canals... | 01/19/1999 |
| 5820316 | Guide element for a cutting tool Guide element for a cutting tool having a location hole (20) in the tool shank (4) having an internal thread (16, 10), which has a threaded bolt (14) having an external thread that can be screwed into the internal thread (16, 10) and is spring mounted in ... | 10/13/1998 |
| 5795111 | Reamer with stepped knife A reamer for precision machining of holes includes a reamer body and a knife plate supported above the exterior of the body and extending along the exterior. The knife plate has a front lower radial height cutting region and a rear taller radial height cu... | 08/18/1998 |
| 5791838 | Metal drilling tool and method A drilling tool having a cylindrical body with a central axis. A first cutting insert with a cutting edge extending from a datum plane from a position about half way between the central axis and the outer edge of the holes and extending toward the first e... | 08/11/1998 |
| 5782587 | Drilling tool The invention relates to a drilling tool (11) for bores in solid material, comprising a drill shank (26) which has a radially inner indexable insert (13) at an inner chip space (21) and a radially outer indexable insert (14) at an outer chip space (22), t... | 07/21/1998 |
| 5697737 | Support pad for drill A drill includes support pads for supporting and guiding the drill in the drill hole. The support pads are formed as parallelepiped-shaped cemented carbide bodies which each have two wing-shaped protrusions on their longitudinal sides. In a corresponding ... | 12/16/1997 |
| 5649794 | Drill A drill including a bit having an extension received in and axially extending groove formed in the end face of the drill base body, a side cutting edge projecting beyond the base body circumference, and two active end cutting edges projecting beyond the e... | 07/22/1997 |
| 5551812 | Single-blade reamer A single-blade reamer is guided in a hole by means of at least one guide fillet. The guide fillet is provided with a coating of cubical boron nitride (CBN) in the region of its guide surface facing the wall of the hole. The guide fillet thus withstands he... | 09/03/1996 |
| 5483990 | In-line valve for insertion in a pressurized fluid flow line A valve adapted for insertion in a pressurized fluid flow line for blocking and sealing the flow of fluid through the line without disconnecting the line and to maintain the pressure in the upstream end of the line. The valve includes two body portions wh... | 01/16/1996 |
