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 |
| 7992878 | Helical lead for a drive shaft collet Embodiments of a drive shaft collet adapted for linking a surgical drive shaft to a surgical instrument so that the instrument may be driven by the drive shaft are disclosed. The collet includes a helically-swept cutout which forces a received shaft to be rotated in... | 08/09/2011 |
| 7938408 | Tool holder for a rotary tool The invention proposes a tool holder (1), in particular of the shrink-fit chuck type, the receiving section (5) of which comprises clamping means (9) which are provided centrally with respect to an axis of rotation (7) of the tool holder ... | 05/10/2011 |
| 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 |
| 7367763 | Shrink fit tool holder with grooves A shrink fit tool holder includes a shank or body that includes a tool holder portion, a flange member, a tapered outer surface that generally corresponds to a tapered bore of a spindle, and a central bore or aperture for accommodating a cutting tool. The central bo... | 05/06/2008 |
| 7331262 | Drive bit holder and method of manufacturing A bit holder is provided which includes a body having a cavity formed with an upper portion and a lower portion, separated by a ridge-like protuberance which has a cross sectional profile smaller than that of the upper portion and the lower portion. The ridge-like p... | 02/19/2008 |
| 7281307 | Tap process for hard workpieces A process and apparatus for producing screw threads in hard material workpieces with a series of taps. The present invention employs a threaded bore formed in a bracket assembly to align and position multiple taps on a rotary machine. The taps are used in sequence t... | 10/16/2007 |
| 7257900 | Canted saw blade A saw blade incorporates an integrated cant angle. The saw blade includes a cutting portion having a toothed edge and opposite edge. The toothed edge defines a cutting plane. A shank portion extends from the cutting portion and is laterally offset from the opposite ... | 08/21/2007 |
| 7258513 | Depth limiting device and hole forming apparatus containing the same A depth limiting device includes a stop collar having a an open end portion and an workpiece engaging portion extending along the open end portion thereof for contacting a workpiece; a spindle extending axially through the shell, the spindle including a first end ex... | 08/21/2007 |
| 7243579 | Universal cap tool/tool holder An apparatus for facilitating the use of tools on underground pipeline systems including a socket having a polygonal open end, a pliable socket insert having a polygonal outer circumference corresponding to the polygonal socket opening adapted to fit snugly into the... | 07/17/2007 |
| 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 |
| 7185569 | Multipurpose folding tool with tool bit holder and blade lock A folding multipurpose hand tool including a pivoted latch that engages side walls of a handle and a base of a folding tool member to hold the folding tool member in a selection position. A separate safety interlock latch keeps a folding blade stowed in a handle whe... | 03/06/2007 |
| 7159319 | Tube cutter having retractable tool device A tube cutter includes a handle having a chamber to slideably receive a casing of a tool device, the casing includes an aperture and two side openings communicating with a U-shaped groove, a tool member includes a shank rotatably received in the aperture of the casi... | 01/09/2007 |
| 7147409 | Drill countersink assembly A combination tool for drilling a bore and countersink for that bore includes a countersink member. The countersink member comprises a longitudinal sleeve with a first end and a second end. The sleeve contains a longitudinal bore through the sleeve from the first en... | 12/12/2006 |
| 7137185 | Tool holder for shrink-fit attachment of rotating tools with predominantly cylindrical shafts The invention relates to a tool holder (10) for shrink-fit attachment of rotating tools (11) with predominantly cylindrical shafts (12), having a chuck (13) with a clamping section (14) containing a conical receiving bore (15 | 11/21/2006 |
| 7115846 | Shrinking arrangement for tool holder having an induction-heating arrangement A shrinking arrangement for a tool holder is provided which retains a rotary tool with a press fit in a central accommodation opening. The arrangement includes an induction-heating arrangement for thermally expanding the tool holder in the region of the accommodatin... | 10/03/2006 |
| 7097398 | Multi-functional bit & connect-disconnect coupling used therewith A tool employs a connect-disconnect coupling for a power drill to hold a multi-functional bit having at its one end a drill element adapted to form a hole and a countersink and at its other end a driver element to drive a screw or other type of fastener. ... | 08/29/2006 |
| 7077608 | System for mounting a machine tool in a holder A system for mounting a tool in a tool holder for high-precision centering of the tool and positive restraint of the tool from rotation within the holder. The tool holder includes a cylindrical aperture having a diameter slightly less than the diameter of the shank ... | 07/18/2006 |
| 7066696 | Device for thermally shrinking tools A heat shrink tool holder for holding tools and machine parts in an axial bore comprises a sleeve between the bore of the holder and the tool shank or machine part. The sleeve is a reducing sleeve that transfers a holding action exerted by the holder in its cold sta... | 06/27/2006 |
| 7017919 | Chuck A chuck includes a holder body, a clamp sleeve, and a large number of needle rollers. The holder body has a shank portion, a flange, and a chuck sleeve. The clamp sleeve is fitted onto the outer circumference of the chuck sleeve such that the clamp sleeve is rotatab... | 03/28/2006 |
| 6997709 | Dental hand instrument and tip of the instrument A dental hand instrument (10), comprising a handle (11) with parts (12a, 12b) at its ends. The end of each neck part is provided with a coupling element (15) designed for the connection of replaceable tips (20)... | 02/14/2006 |
| 6991411 | Device for clamping tools The invention is concerned with a device for clamping and releasing work tools (16) in a tool receptacle (10). The tool receptacle (10) includes on its free end for this purpose an open socket part (12), which is adapted for frictional en... | 01/31/2006 |
| 6964546 | Method and apparatus for drilling countersunk holes A drilling apparatus includes a drill, a surge control device and a countersink limiter coupled to the drill, and a rotatable cutting tool coupled to the countersink limiter. The cutting tool includes a drilling portion operable to form a hole, a countersink portion... | 11/15/2005 |
| 6887019 | Device for thermally shrinking tools A heat shrink tool holder for holding tools and machine parts in an axial bore comprises a sleeve between the bore of the holder and the tool shank or machine part. The sleeve is a reducing sleeve that transfers a holding action exerted by the holder in its cold sta... | 05/03/2005 |
| 6871859 | Toolholder and insert arrangement with a shrink fit coupling A toolholder and insert arrangement includes an insert having a cutting portion and a shank portion disposed at a base of the cutting portion. The toolholder has a first end attachable to a spindle and a second end having a shank-receiving opening. When the toolhold... | 03/29/2005 |
| 6810782 | Detachable tool fixing mechanism and tool for use therewith A tool fastening mechanism has a housing 2, in which a clamping opening 3 is embodied for receiving a tapering tool shaft clamping end 4 of a tool part 5. The clamping opening 3 tapers inward in the introduction direction of the cl... | 11/02/2004 |
| 6712367 | Device for clamping tools The invention is concerned with a device for clamping and releasing work tools (16) in a tool receptacle (10). The tool receptacle (10) includes on its free end for this purpose an open socket part (12), which is adapted for frictional en... | 03/30/2004 |
| 6666461 | Clamping chuck A clamping chuck has a chuck body made of a dimensionally stable material, on which is provided a clamping sleeve that forms a central receptacle for a workpiece or tool that is to be clamped, and has a clamping mechanism for immobilizing in the receptacl... | 12/23/2003 |
| 6595528 | Chuck for the clamping of tools by shrink fit A chuck for the clamping of tools by shrink fit includes a chuck member which has a longitudinal section having a central receptacle with clamping surface for the insertion and holding of the tool to be clamped with its shank. The longitudinal section inc... | 07/22/2003 |
| 6511077 | Clamping chuck for clamping tools by shrinkage A clamping chuck for clamping tools by shrinkage has a chuck body provided with a receptacle for receiving a tool to be clamped with a tool shaft and having an end-side abutment surface for the insertable tool so that during insertion a rear-side shoulder... | 01/28/2003 |
| 6488285 | Hydraulic chuck with deformable gripping sleeve A hydraulic chuck includes a center bore for receiving a tool shank. At least one closed cavity is disposed in the chuck body adjacent the bore and extend circumferentially by a distance less than 360 degrees. The cavity containing device communicates wit... | 12/03/2002 |
| 6390482 | Cutting tool assembly A tool assembly (10) comprising a male member (12) and a female member (14). The male member having a diameter D1 and being inserted into a variable diameter bore (28) in the front end of the female member (14). The variable diameter bore having a front e... | 05/21/2002 |
| 6339868 | Cutting tool and shrink fitting method for the same A cutting tool including a tool holding portion and a tool. The tool is configured to be inserted into a hole of the tool holding portion. The tool includes a tool main body, a guide portion, and a shoulder portion. The tool maim body has a tool outer dia... | 01/22/2002 |
| 6315506 | Shrinkage fit type tool holder A shrinkage-fit tool holder having a tool holder body 11 having a portion 2 adapted to be connected to a machining center, a manipulator-engaging portion 3, a chuck portion 4 and a tool-holding member 6 for firmly holding a shank of a cemented carbide too... | 11/13/2001 |
| 6292992 | Process for compensating eccentricities and imbalances of rotating parts In order to permit a fast, precisely centric fastening of rotating tools, such as drills or milling tools in clamping sleeves, of such clamping sleeves or of workpiece holding devices, such as clamping chucks 4 in spindles 1 of turning machines, respectiv... | 09/25/2001 |
| 6260858 | Insulated heat shrink tool holder An improved insulated, heat shrink tool system and method of assembly, which utilizes an insulating sleeve within the internal opening of a heat shrink tool holder wherein the insulating sleeve has a thermal conductivity less than that of the tool holder.... | 07/17/2001 |
| 6234729 | Shrink fit shoulder interface A machine tool extension for use with a cutting tool having a generally cylindrical shank portion. The machine tool extension comprises an elongate, generally cylindrical shank which is fabricated from a thermally expandable material and includes a first ... | 05/22/2001 |
| 6220122 | Fastener holding tool and system A fastener driving system and a fastener holding tool therefor having a shank and a resilient retainer with a bore therethrough coupled to a first end portion of the shank. A first end of the resilient retainer and a portion of the resilient retainer bore... | 04/24/2001 |
| 6149165 | Collet assembly and manufacturing process An Improved Collet Assembly and Manufacturing Process is disclosed. Also disclosed is an improved collet that includes a spindle, a center portion comprising several tabs and a collar. The disclosed collet is manufactured from a single piece of stock, and... | 11/21/2000 |
| 6131916 | Chuck A chuck comprises a mounting base 11, and a protruding shaft 12 protruding from a center of a front surface of the base and having a tapered surface 13 on the outer peripheral surface thereof. A hole 16 is formed in the protruding shaft and has an opened ... | 10/17/2000 |
| 6053508 | Device for the centric and/or imbalance-free holding of workpieces or tools In order to permit a fast, precisely centric fastening of rotating tools, such as drills or milling tools in clamping sleeves, of such clamping sleeves or of workpiece holding devices, such as clamping chucks 4 in spindles 1 of turning machines, respectiv... | 04/25/2000 |
