Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7310879 | Cutting attachment having an adjustable foot for rotary hand tools Embodiments of an accessory attachment for a rotary power hand tool are disclosed wherein the hand tool is of the type which has a tool housing with a preferably cylindrical nose portion, a motor having a motor drive shaft with a mounting coupling extending forwardl... | 12/25/2007 |
| 7207751 | Gun drill guide and gun drill guide assembly A gun drill guide is disclosed comprising a cylinder body member of a resilient polymer material having a central opening extending therethrough, a radially extending flange means at one end thereof to engage the end face of a bearing assembly and an annular groove ... | 04/24/2007 |
| 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 |
| 7131798 | Countersink for chip removing machining tool A tool for chip removing machining includes a drill and a countersink mounted to the drill. The drill includes a protruding land and at least one chip flute. The countersink includes a body, a plurality of inserts received in respective insert pockets formed in the ... | 11/07/2006 |
| 7090447 | Twist drill for drilling with a countersink cutting arrangement, and a cutting tool with a countersink cutting arrangement, and a cutting-chamfering tool A twist drill or drill/chamfer tool that comprises a drill with a shaft section. The shaft section is provided with a twisted flute and a clamping ring as the retainer of a facing cutter. The clamping ring tubularly encloses the shaft section or the drill shaft and ... | 08/15/2006 |
| 7077606 | Rotating chip removing tool, such as a drilling and chamfering tool, with cutting inserts, and a milling cutter with cutting inserts A rotating chip removing tool, such as a drilling and chamfering tool, and a milling cutter, each of which have at least one cutting insert or cutting plate. The cutting plate has a guide recess that adjoins the underside of the cutting plate. A plate seat for accom... | 07/18/2006 |
| 6951562 | Adjustable length tap and method for drilling and tapping a bore in bone The present invention is directed to an adjustable self drilling tap assembly and method for drilling and tapping bores in bone for use in orthopedic procedures to treat bone. The adjustable length tap assembly includes a shaft having cutting threads for drilling ho... | 10/04/2005 |
| 6805521 | Chuck with additional cutting elements A chuck for securing a working tool in a machine tool and including a one-piece, ring-shaped carrier member arranged outside of the end surface of the receiving end region of the chuck and parallel thereto and provided with cutting region having additional cutting e... | 10/19/2004 |
| 6595729 | Drill with countersinker for chip removing machining A tool for chip removing machining includes a drill and a countersinker mounted thereto. The countersinker comprises two half-sections that are clamped to each other and to the drill. The drill includes helical flutes defining respective chip-removal chan... | 07/22/2003 |
| 6345937 | Tool and method for the cutting machining of a workpiece A tool for cutting machining a workpiece, including a cutter plate supported on a holder for machining a surface and additionally comprising a tool projecting from the body of the tool. The cutter plate is supported on a holder which is in turn supported ... | 02/12/2002 |
| 5902118 | Method for production of a three-dimensional circuit arrangement In order to produce a three-dimensional circuit arrangement, two substrates (21, 26) which have components in the region of their boundary surfaces (22, 27) which touch one another are stacked one on top of the other. The substrates (21, 26) are firmly co... | 05/11/1999 |
| 5800148 | Blind-taper hole saw A rotary tool for forming a blind-tapered hole in a workpiece includes an elongate shaft having a bit shank on one end and a base plate secured to the other end. A collar, mounted for axial movement on the shaft, is biased away from the base plate to a fi... | 09/01/1998 |
| 5730561 | Universal chop saw A new Universal Chop Saw for utilizing a normal grinding tool for cutting and drilling objects in hard to reach areas by simply coupling the present invention to the grinding tool and adjusting the present invention to the required angle. The inventive de... | 03/24/1998 |
| 5482412 | Cutting tool A slider 16 having a cutting insert 5A is slidably mounted in a groove 11 formed along the generatrix dimension of a substantially conical tool body 1. Serrations 12 and 16a, which are brought into close contact with each other for engagement, are formed ... | 01/09/1996 |
| 5044841 | Valve seat bushing machining apparatus Apparatus for machining a valve seat and valve stem guide all from the valve seat side of a head or block. The valve seat is machined in one pass by a single point cutting tool which is moved on two axes and, the valve guide bore is machined by a reamer. ... | 09/03/1991 |
| 4892448 | Cutter and drive gear assembly for dressing welding electrode tips A cutter and gear assembly for simultaneously dressing a pair of spaced aligned welding electrode tips comprise a housing with a power-rotated gear journaled thereon for rotation upon a first axis and having an axial bore at one end terminating in an annu... | 01/09/1990 |
| 4869625 | Combination drilling and skiving tool A combination drilling and skiving tool including a longitudinally extending hollow skiving sleeve slidably and concentrically mounted on a right-handed twist drill. Dogs or pawls provided on the internal periphery of the skiving sleeve engage with the he... | 09/26/1989 |
| 4789280 | Tooling assembly for automatic tool changing A tooling assembly (10) is disclosed having a plurality of tool holders (18, 20) for independently driven cutting tools (14, 16), the tooling assembly adapted for automatic insertion and removal from a spindle assembly (12). The plurality of cutting tools... | 12/06/1988 |
| 4726717 | Deep-bore drilling machine A deep-bore drilling machine consists of a deep-bore drilling unit (1) which is driven by rotation and has a deep drill tool (4, 7). The front end (7) of the deep-bore drilling tool (4) is led into the drill bushing (10) at the beginning of the drilling o... | 02/23/1988 |
| 4720218 | Combination drilling and dressing bit The bit (1, 101, 201) includes a pointed tapered drill portion (10, 110, 210) with cutting edges (14, 114, 214), an abrasive frustoconical grinder portion (20, 120, 220), and an abrasive cylindrical reamer portion (30, 130, 230). The drill portion (10, 11... | 01/19/1988 |
| 4692074 | Tool coupling arrangement for a tooling assembly A tool coupling arrangement is disclosed for a tooling assembly (10) adapted for automatic tool insertion into a spindle assembly (12), the tooling assembly (10) having an axially moveable element (20) for causing movement independently of the spindle ass... | 09/08/1987 |
| 4623287 | Drilling machine especially for drilling glass Drill apparatus, especially for drilling glass, with hydraulic and/or mechanically advancing, driven drill spindle, wherein the drill spindle is secured in a spindle carrier and is equipped at the end which is facing towards the workpiece with a drill, as... | 11/18/1986 |
| 4580933 | Cutting tool accessory A twist drill is provided with a countersink and collar assembly. The countersink includes a body with a face which cooperates with a similar face of the collar to trap a pair of balls between them. The faces being conical, enable the balls to be driven r... | 04/08/1986 |
| 4362446 | Torch tip rebuilding tool A torch tip rebuilding tool which can be held in one's hand and used to reface the seat located on one end of a used torch tip, and to reface the opposed outlet end of the tip. The tool has opposed cavities formed at each end which are aligned along the l... | 12/07/1982 |
| 4260302 | Transfer machines A machine tool for performing a plurality of operations on a workpiece, i.e. a transfer machine, has two tools which are alternatively presentable to the workpiece and which are mounted coaxially for common rotation on the front end of a spindle. The spin... | 04/07/1981 |
| 4208229 | System for repairing panes of glass A method for repairing panes of glass is provided which enables fractured panes to be strengthened and holes refilled while the pane remains installed in its support structure. The method comprises steps for relieving stress points in a fractured pane, an... | 06/17/1980 |
| 4165200 | Drilling and deburring apparatus The burr formed on the breakout side of a workpiece during a drilling operation is removed by a deburring bit positioned underneath the workpiece in axial alignment with the drill bit. The drill bit is of the twist type and has at least two longitudinal f... | 08/21/1979 |
| 4105360 | Dual cut boring tool assembly A boring tool assembly performs both the rough and finish cutting operations upon a metal work piece without power activation or manual adjustments of the tool units between the cutting strokes. The assembly includes a boring bar having a pair of fixed, d... | 08/08/1978 |
| 4078622 | Road surface recessing device A device is provided for creating recesses for road surface markers in road surfaces which makes initially a cut sufficient to stabilize the device in the desired position and then fragments and discharges core material within a circular cut defining the ... | 03/14/1978 |
