Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7997835 | Multiple chuck hand tool A tool (10) including a drive shaft (36) having an axis of rotation, and a plurality of bit holders (28,30) interchangeable with one another at a position of use. The bit holders (28,30) being mounted on a turret (26) which is rota... | 08/16/2011 |
| 7404696 | Drill driver with chuck-mounted drill accessories A power tool with a tool portion and at least one attachment. The tool portion has a tool body and a drill chuck. The drill chuck includes a rotatable spindle, a plurality of jaws that are coupled to the rotatable spindle and a cover that is disposed about the jaws ... | 07/29/2008 |
| 7375361 | Optical alignment device for machine tool The orientation of a machine 2 relative to a work-piece 10 is manually controlled by means of an alignment device 4. The device 4 includes a light source 24 rigidly attached to a foot 12 that is resiliently movably attached ... | 05/20/2008 |
| 7369916 | Drill press A power tool control system connected with a drill press provides a system for determining operational settings for the drill press and/or structural factors of a workpiece to be operated upon by the drill press. For instance, the power tool control system may estab... | 05/06/2008 |
| 7367761 | Tool, tool holder and machine tool A tool attachable to a spindle of a machine tool in the same way as an ordinary tool, capable of being driven without connecting with an external power supply etc., giving a higher rotational speed than that of the spindle of the machine tool without supplying elect... | 05/06/2008 |
| 7359762 | Measurement and alignment device including a display system A graphical user interface communicatively coupled with a non-contact measurement and alignment device enables user control over and display of the readings from the non-contact measurement and alignment device. In operation with a power tool, the graphical user int... | 04/15/2008 |
| 7354227 | Apparatus and method for manufacturing plastic frameworks such as window frames A production line for carrying out machining and cleaning operations on rectangular frameworks, is provided. Elongate plastic frame members are welded together in a welding machine, thereby forming two rectangular frameworks located one above the other. These are mo... | 04/08/2008 |
| 7334613 | Router base securing mechanism The present invention is directed to a mechanism and method for providing above the table securing/unsecuring of a router motor housing. The mechanism of the present invention employs a mechanical connection included on a pivot member to couple with a wrench device ... | 02/26/2008 |
| 7334614 | Depth adjustment mechanism A depth adjustment mechanism, disposed on a router, is enabled using a worm drive that includes a shaft member engaging with a rack member. The shaft member couples with a sleeve disposed on a base of the router. The rack member is coupled with a motor casing of the... | 02/26/2008 |
| 7331685 | Nailer with an illumination device A nailer with an illumination device located adjacent to the muzzle thereof comprises a nailer and an illumination device. The nailer has a muzzle defined at a front end of a housing thererof, between the muzzle and the housing is arranged a panel and a protection h... | 02/19/2008 |
| 7316528 | Ergonomic router assembly An ergonomically designed router assembly includes a base assembly coupled with a motor casing including a grip assembly which provides an overall narrower profile to the router assembly. The grip assembly may relieves stress on the muscles and allows the operator t... | 01/08/2008 |
| 7311331 | Method and apparatus for raising and lowering a trailer A combination is disclosed having a trailer, telescoping support members, and a drive. The drive has a motor and a drive shaft, and the drive shaft has a first end portion affixed to a first cross member and a second end portion affixed to a second cross member. The... | 12/25/2007 |
| 7312433 | Measuring device and method for detecting objects interrupting a beam of radiation The invention relates to a measuring device 5 of the type which detects the interruption of a beam of radiation (e.g. light 20) by an object (50 FIG. 1) in the beam. The device includes a light emitter 12 and a light dete... | 12/25/2007 |
| 7290474 | System for rapidly stopping a spinning table saw blade A system for stopping a spinning table saw blade is comprised of a pin assembly disposed adjacent to a saw blade assembly for stopping a spinning saw blade. A receiving block is disposed on a side of the saw blade opposing the pin assembly for receiving the tip of t... | 11/06/2007 |
| 7273332 | Method and apparatus for through-hole placement in a building structure A method and apparatus for creating a through-hole in a building structure includes selecting a first location on a first side of the building structure that will define a first opening of the through-hole; disposing a magnet at the first location; selecting a secon... | 09/25/2007 |
| 7261261 | Stand of free standing or mobile type A stand comprising: a floor mount, a location mechanism for a unit to be supported; and at least one column extending between the floor mount to which it is attached by a first attachment and the location mechanism which is attached to, or integral with, an upper re... | 08/28/2007 |
| 7256898 | Method and device for determining the position of rotationally drivable tools To determine the position of rotationally drivable tools in machine tools, the moment of separation of the tool to be measured and a measuring beam, for example a laser beam of a light barrier, is used. The tool to be measured is first positioned in such a manner th... | 08/14/2007 |
| 7243734 | Power tool with battery power supply The present invention relates to a power tool with battery power supply comprising a main body and a detachable battery package which are connected with each other via a securing frame and a locking assembly. The securing frame includes a guiding device, an locking/... | 07/17/2007 |
| 7243440 | Gauge for use with power tools A gauge for connecting with a power tool and providing a system for determining structural factors of a workpiece to be operated upon by the power tool is provided by the present invention. The gauge including a probe connected with a sensor via a spring, wherein co... | 07/17/2007 |
| 7226253 | Clamping mechanism The drilling of a hole through at least two structural components in alignment with a predrilled hole or marked location in one of the structural components is facilitated by a clamping mechanism that has a bail with two legs. One leg carries a first clamping sectio... | 06/05/2007 |
| 7217069 | Hand-held tool with a removable object sensor A hand-held power tool is provided with a housing, an attachment member, and an object sensor that is removable from the attachment member. The attachment member may be removable from the tool. The object sensor, which can be used to detect studs hidden behind walls... | 05/15/2007 |
| 7217071 | Method for testing the fit or imbalance of a tool In the method, a tool is tested for an aligning fit or an imbalance in a tool spindle. The tool spindle is set into rotation. A light beam is used to check whether the tool wobbles. The tool spindle and the light beam are moved relative to one another until the ligh... | 05/15/2007 |
| 7210881 | Sleeved stop for a drill bit A stop for use with an electric drill bit, the stop having at least one threaded sleeve for positioning the stop relative to a surface into which the drill bit will extend. The stop may have both an inner and an outer sleeve. The sleeves are mounted coaxially, one i... | 05/01/2007 |
| 7210474 | Saw blade with cutting depth gauge Cutting tools are provided that include a circular core with a cutting means located on its periphery, a central bore to receive an arbor of a rotating power tool and one or more perforations extending through the central core. The perforations are disposed along a ... | 05/01/2007 |
| 7200516 | Alignment accessory for portable drills and the like An apparatus includes a strap that is positional about a drill and maintains a static relationship therewith while a drill bit and chuck rotate. The apparatus includes a plurality of light sources and sensors. The light sources and sensors face forwardly and emit co... | 04/03/2007 |
| 7191532 | Modular tool assembly having a vacuum mounting arrangement A modular tool assembly including a tool base configured to releasably secure a modular tool arrangement in a fixed relationship relative to a mounting surface. The tool base includes an upper housing portion and a lower housing portion having a mounting seal extend... | 03/20/2007 |
| 7188690 | Drilling device and method for producing undercut holes A drilling device for producing undercut holes. The drilling device includes a drilling tool having an axis of rotation and a cutting portion arranged such that the cutting portion drills a hole with a longitudinal axis that is radially offset with respect to said a... | 03/13/2007 |
| 7185998 | Power tool A power tool has a light unit provided at the bottom part of the handle grip. The light unit can be adjusted to change the lighting angle and can hold the desired lighting angle. The light unit thus disposed does not get in the way, the lighting angle of the light u... | 03/06/2007 |
| 7182148 | Tool with motion and orientation indicators A tool has a housing; a display unit attached to the housing; and a motion detection unit operably coupled to the housing and to the display unit, wherein the motion detection unit is configured to detect linear and rotational motion of the housing, to generate a fi... | 02/27/2007 |
| 7181854 | Laser leveling device having a suction mounting arrangement A laser leveling device having a suction mounting arrangement includes a housing and a mounting seal extending from the lower portion of the housing. The mounting seal cooperates with an attachment surface to define a suction mounting area therebetween. The suction ... | 02/27/2007 |
| 7179030 | Machine tool A machine tool for machining workpieces includes a spindle group with at least two spindle arrangements placed alongside each other, each spindle arrangement possessing a spindle to receive a machining tool. Each spindle arrangement is guided on a guide arrangement ... | 02/20/2007 |
| 7175371 | Protective shield for a tool A protective shield for a drilling or cutting tool having a cylindrical-shaped housing that has a front end and a back end, the front end able to fit flush against a working surface; and a spring having a first end and a second end, the first end able to receive the... | 02/13/2007 |
| 7170076 | Tools with orientation detection A tool operates with a guide system to identify the orientation of a tool on a work piece. In one implementation, the tool identifies its orientation with respect to a guide signal supplied by the guide system. In an alternate embodiment, the tool determines its abs... | 01/30/2007 |
| 7164474 | Apparatus and method for normalization of a drilling tool to a work surface The apparatus for normalization of a drilling tool to a work surface includes a light source, a beam splitter, and a screen. The beam splitter directs and the screen receives at least a portion of the light reflected off of the work surface. When the received light ... | 01/16/2007 |
| 7160063 | Coolant feed drill nozzle with thrust-vectored exhaust A drill nozzle includes a housing having a bristle brush ring attached. The housing of the drill nozzle may include an air intake, multiple coolant inlets, multiple coolant jets, a vacuum tube, and mounting flanges. The air intake may provide a thrust-vectored down ... | 01/09/2007 |
| 7150587 | Hand-held tool containing a removably attachable object sensor A hand-held power tool having a housing and a removably attachable portion. The removably attachable portion, which comprises an object sensor to detect studs hidden behind walls, electrical lines, and other materials, is readily accessible to tradesmen. A level may... | 12/19/2006 |
| 7146739 | Laser-guiding coordination device for a drilling machine A laser-guiding coordination device for a drilling machine has a C-base, two laser-line projectors oppositely and adjustably embedded inside the C-base. Each laser-line projector has a first adjuster, a second adjuster perpendicularly and rotatably mounted inside th... | 12/12/2006 |
| 7140818 | Tool, tool holder, and machine tool A tool attachable to a spindle of a machine tool in the same way as an ordinary tool, capable of being driven without connecting with an external power supply etc., giving a higher rotational speed than that of the spindle of the machine tool without supplying elect... | 11/28/2006 |
| 7137761 | Right angle drill with an improved structure for accommodating a light assembly A right angle drill (1) includes a motor housing (6) which defines therein a hole (18) for accommodating a motor field system (3), a cut-out (15) formed in the underside of the motor housing (6) from the front end toward the... | 11/21/2006 |
| 7137327 | Riving knife assembly for a dual bevel table saw An embodiment of the present invention is directed to a riving knife assembly for a dual bevel table saw, comprising: a first armature configured for coupling with a beveling member; a second armature adjustably and rotatably coupled with the first armature; a first... | 11/21/2006 |