Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 7422219 | Interface of a tool An interface of a tool is proposed with a first part serving as a seat having a female taper, which part has a first conduit section located concentrically to its center axis, a second part having a hollow shaft taper introduceable into the recess, which part has a ... | 09/09/2008 |
| 7371034 | Drilling attachment A drilling attachment for use in wet and dry drilling operations includes a housing having first and second fluid conduits, and a drive shaft mounted within the housing and having fluid transmitting first and second end portions in fluid communication with a respect... | 05/13/2008 |
| 7371036 | Tool holding device and method for positioning a tool Disclosed is a tool holding device (22, 50, 58) for retaining a tool (24) on a tool chuck (20). Said tool holding device (22, 50, 58) comprises a tool-accommodating area (32, 52, 66) for at least partly receiving the tool (24 | 05/13/2008 |
| 7357607 | Tool holder A tool holder is provided that is configured to deliver coolant to a work piece and/or a cutting tool. The tool holder includes a tool mounting aperture for receiving a shank of a cutting tool, and an axially extending central passage for receiving coolant deliver t... | 04/15/2008 |
| 7325811 | Chuck A chuck (2) for a hand-held power tool (4), which is connected with a motor-driven spindle (6) of the power tool for joint rotation therewith, includes a locking device for securing a shaft section of an exchangeable working tool and having a ci... | 02/05/2008 |
| 7320568 | Tool holder A tool holder is equipped with a tip run-out correction mechanism for correcting run-out of the tip of the tool. The tip run-out correction mechanism includes an annular stepped portion formed on a cylindrical support portion of a holder body; a ring member rotatabl... | 01/22/2008 |
| 7309195 | Shank for a rotary and/or percussive tool A shank for a rotary and percussive tool has a locking groove (3) arranged between two guided regions (1a, 1b) and axially closed at its opposite ends for receiving at least one radially displaceable and axially displaceable, withi... | 12/18/2007 |
| 7306238 | Collet and lock nut An assembly generally comprises a collet for receiving a cutting tool shank and a lock nut for creating a gripping force between the collet and the cutting tool shank. The collet has a nose and the lock nut has a front face that is substantially flush with the nose.... | 12/11/2007 |
| 7261302 | Collet and lock nut assembly A collet and lock nut assembly includes a collet for receiving a cutting tool shank and a lock nut for creating a gripping force between the collet and the shank. The collet has a nose portion and a body portion separated by an annular groove. The lock nut has a plu... | 08/28/2007 |
| 7258350 | Chuck for receiving a rotary-percussion tool A chuck for receiving a working tool (2) rotable about a longitudinal axis (A) includes a receiving sleeve (3) having a guide surface (12) extending along the longitudinal axis (A) and at least three, axially extending, up to a free end surface ... | 08/21/2007 |
| 7244080 | Quick-change insert for tools, especially for thread drills The present invention relates to a quick-change insert (10) for tools (11), in particular thread drills (12), for minimal lubrication, that is designed for detachable installation in a chuck (30) provided with a central lubricant channel ... | 07/17/2007 |
| 7241087 | Core bit In a core bit formed with a boring blade at a front end thereof and integrally formed with a mounting portion, at a rear end portion thereof, formed with a guide portion in a cylindrical shape mounted to a chuck portion formed at a concrete drill, a ring-like seal m... | 07/10/2007 |
| 7192226 | Shrink fit holder and methods of drilling and reaming A drill has a unitary drill bit and chuck structure that includes a drill bit and a chuck. The chuck encloses a portion of the drill bit and has a thread. A rotatable drive element having a thread engages the thread of the chuck. The chuck is heat shrunk onto the dr... | 03/20/2007 |
| 7160067 | Tool holder assembly A tool holder assembly having a cutting tool, a tool holder, and a sealing portion. The sealing portion is configured to inhibit fluid leakage between the cutting tool and the tool holder. ... | 01/09/2007 |
| 7156589 | Tool holder of machine tool A tool holder of a machine tool, wherein a holder rear end part is fixed to the front end part of the spindle of the machine tool, a tool receiving surface part (8d) for receiving the rear end face of a shaft-like tool (11) fixed to a holder fro... | 01/02/2007 |
| 7147410 | Tool head for holding a tool in a machine tool A tool head for securing a tool in a machine tool has a stationary spindle bearing housing, a spindle rotatably supported in the spindle bearing housing, and a modular tool changing insert for receiving a tool. The tool changing insert is exchangeably arranged on th... | 12/12/2006 |
| 7144207 | Fluid chuck device and method In a valve disposed between a fluid supply and a socket of a chuck and configured to regulate the flow of the fluid to the socket. There is a seal screw for modulating a preload tension. This seal screw has a first sealing surface. The valve further includes a secon... | 12/05/2006 |
| 7134812 | Tool coolant application and direction assembly A coolant assembly for supplying coolant fluid to a tool includes an outer ring defining an inlet and an insert pressed within the outer ring including an annular channel. The annular channel is in communication with the inlet defined by the outer ring and includes ... | 11/14/2006 |
| 7121774 | Clamping device for hexagon bits A clamping device has a hexagon receptacle for receiving hexagon bits inserted in an axial direction of the hexagon receptacle. A radially movable locking element is provided for engaging a locking recess of an inserted hexagon bit. The locking element has a rest po... | 10/17/2006 |
| 7048481 | Cutting fluid device for a spindle of a machine tool A spindle device of a machine tool, which can prevent the liquefaction of atomized cutting fluid in atomized cutting fluid passage downstream of a straightening unit 14, enhance a responsiveness to an ejecting start or stop instruction, and prevent a waste of... | 05/23/2006 |
| 7037049 | Rotary cutting tool and high speed machining method with nano-lubrication using such a tool Rotary cutting tool, in particular for high speed machining with nano-lubrication. The lubricant is fed to the end surface of the cutting part (12) of the tool through a central lubrication channel (22) drilled along the axis of rotation (10 | 05/02/2006 |
| 6966562 | Multiple mode chuck A multi-mode quick-release chuck assembly is adapted for receiving tool bits having varying shank cross-sectional-sizes. The chuck assembly includes a hub having a longitudinal hub bore for receiving tool bits, a locking mechanism to retain the tool bits, and a slee... | 11/22/2005 |
| 6932548 | Surface compensating shaving apparatus A surface compensating shaving apparatus (24) has been provided for removing a plurality of pins (12) from a surface of a pinmat (14). The apparatus (24) includes a rotary member (28) and a surface compensating member (32) t... | 08/23/2005 |
| 6923451 | Tool holder In order to provide a tool holder which greatly reduces frictional resistance between a locknut and a taper collet, and eliminates a twisting of the taper collet during tightening of the locknut, in a tool holder comprising a locknut 13 which pushes a taper c... | 08/02/2005 |
| 6915722 | Clamping nut and tool holder with the clamping nut, and spanner This invention provides a clamping nut which prevents, at the time of rotation of the clamping nut, a fastening force that is imparted in the radial direction of the clamping nut towards the inside of the clamping nut, from operating on a converting part formed on t... | 07/12/2005 |
| 6746023 | Collet The present invention provides a collet capable of efficiently supplying a cooling fluid such as a cutting fluid to a tool and thereby realizing satisfactory cooling by adjusting the flow velocity of the cooling fluid according to the diameter of the tool held by th... | 06/08/2004 |
| 6729627 | Capped collet and collet cap The present invention provides a capped collet and a cap attached to the collet, which are capable of efficiently supplying a cooling fluid to a tool according to the type of the tool held therein, and of performing satisfactory cooling. The capped collet comprises:... | 05/04/2004 |
| 6726412 | Tool holder for machine tool, and cutter and tool driver used in the tool holder A tool holder for machine tool capable of surely preventing the cutting fluid oil, fed into a passage through-hole (e) in a tool holder main body (1), from leaking the connection part between a cutter (10) and the tool holder during the machining of a ... | 04/27/2004 |
| 6601857 | Tool holder clamp seal for fluid cooled tool A seal assembly for a toolholder with a collet clamping member having a forcing ring in which at least in part the clamping member can be positioned, and a seal ring with a tool insertion opening including a surrounding O-ring holder that can be removably... | 08/05/2003 |
| 6497765 | Multi piece swivel chuck for holding conical shaped work An improved chuck for supporting elongated work pieces having conical end portions, such as single crystal ingots used to fabricate semiconductor wafers, while such. The chuck is typically used in a lathe for positioning and allowing rotation of the work ... | 12/24/2002 |
| 6448528 | Tubular electrode holder A pipe electrode holder for holding an elongated pipe electrode (6) having a relatively small diameter, the pipe electrode holder being coaxially attached to a rotating spindle (7) of a small hole electric discharge machine. The pipe electrode holder has ... | 09/10/2002 |
| 6305696 | Tool holder for machine tool The tool holder for machine tool includes grip 10a on an outer circumference held on an automatic exchange of a cutting edge 8. A through hole 10b is in the longitudinal center. An internal thread (g) is on one end of through hole 10b, and a tool stopper ... | 10/23/2001 |
| 6210083 | Method of providing a cutting tool with lubricating coolant A method for supplying the working parts of a cutting tool with a lubricant which both cools and lubricates the cutting tool. A dispenser is connected directly or indirectly to the cutting tool to enable lubricant to be fed to the working parts of the cut... | 04/03/2001 |
| 6135679 | Thread-cutting chuck using a minimum amount of lubrication A thread-cutting chuck for use with minimum amounts of lubrication includes an axially central lubricant channel for connecting an insert sleeve for reception of a collet chuck, especially a quick-change insert, which accommodates a screw tap provided wit... | 10/24/2000 |
| 6116825 | Rotating cutting tool with a coolant passage and a method of providing it with coolant A method for supplying the working parts of a boring tool, in particular a drill, with a lubricant which both cools and lubricates the drill. A dispenser is connected directly or indirectly to the drill to enable lubricant to be fed to the working parts o... | 09/12/2000 |
| 6086292 | Adapter for connecting a drill with a source of vacuum A drilling apparatus capable of removing drill chips from a workpiece under vacuum. The drilling apparatus includes an elongated drill having a body and a shank. The body has an axial through hole to receive drill chips. The shank has a plurality of radia... | 07/11/2000 |
| 6059296 | Chuck for rotatable tools, in particular drills, screw taps, etc. A chuck for a rotatable tool, such as a drill, a screw tap and the like has a chuck sleeve receivable in a machine and having a central receptacle, a sleeve provided for a tool and releasably inserted in the receptacle, the sleeve having a central main pa... | 05/09/2000 |
| 5984595 | Tool holder A tool holder having a holder body, a collet, an intermediate rod, a clamp bolt and a pull stud. The collet and the intermediate rod are integrally connected by screwing. A spacer is mounted to the front end of the holder body and has an opening hole with... | 11/16/1999 |
| 5975817 | Tool holder The present invention provides a tool holder which realizes an improved applicability to tools with different diameters and attains high sealability and is capable of efficiently supplying a fluid at a predetermined position even when a fluid of high pres... | 11/02/1999 |
| 5954347 | Tool holder and tool for drilling and striking machine tool A tool holder and an associated tool with the shank are provided for a drilling and/or striking machine tool. The tool holder has a drive spindle with a receiving opening provided with a cone for centering and a portion for driving the tool. Dumbbell-shap... | 09/21/1999 |
