Celebrity Inventors
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 |
| 8177606 | Dust shroud for rotary tools A dust shroud for rotary tools includes a front half and a back half which are attachable together along an axis thereof to form a dust shroud. The dust shroud is mountable to a rotary power tool after mounting a mandrel in the power tool, and includes one or more o... | 05/15/2012 |
| 8113922 | Machine tool, in particular hand-held power tool The invention relates to a machine tool, particularly a hand machine tool, which comprises a driving motor and an air guide element, which is disposed in the housing of the machine tool and conducts an air current passing over the driving motor to the outside. The a... | 02/14/2012 |
| 8096857 | Power tool, in particular angle grinder A power tool, in particular a right-angle grinder, includes a motor and a gear, the motor and/or the gear embodied as a mountable function module. The gear is embodied as a mountable function module, with a gear input shaft supported in a gearbox, and the gear input... | 01/17/2012 |
| 8087977 | Angle grinder An angle grinder is provided including a trigger assembly for selectively actuating the angle grinder. A particle separation assembly is provided for the removal of any dust, particle, or artifacts that may have entered into the housing of the angle grinder. A brush... | 01/03/2012 |
| 8083573 | Dust collection and containment in a rotary floor sanding machine A rotary floor sanding machine has a vertically oriented bell housing with a backside floor support and a dust suction port for removing dust from within. The bell housing encloses the sides and backside of a disk casing and rotary sanding pad. The floor support is ... | 12/27/2011 |
| 8062099 | Power tool It is an object of the invention to provide an effective technique for improving the gripping characteristics in a hand-held power tool. To solve the problem, a representative power tool is provided to include a motor that drives a tool bit, a cylindrical housing th... | 11/22/2011 |
| 8029340 | Quick mount adapter and backing plate surface care system and apparatus A quick mount adapter and backing plate is provided for use with a surface care tool of conventional manufacture, the tool including a male or female drive spindle with or without an adapter interface. A surface care media is attached directly to the backing plate. ... | 10/04/2011 |
| 8021214 | Hand-held power tool with locking nut A hand-held power tool has a drive spindle (2) rotatable about a rotational axis (A) and provided at its free end with a clamping flange (3) and a locking thread (4), a locking nut (7) tightenable on the locking thread (4) for secu... | 09/20/2011 |
| 7972199 | Hand-held power tool with locking nut A hand-held power tool includes a drive spindle (2) rotatable about a rotational axis (A) and provided at its free end with a clamping flange (3) and a locking thread (4) having at least one thread undercut (8), and a locking nut (7 | 07/05/2011 |
| 7959497 | Hand-held power tool with locking nut A hand-held power tool includes a drive spindle (2) rotatable about a rotational axis (A), a clamping flange (3) provided at a free end of the drive spindle (2) and having at least one inner thread (12) that in a mounted condition of the ... | 06/14/2011 |
| 7905767 | Power tool with output shaft A motorized power tool includes an output shaft (11) including a tool receptacle (13) for receiving a disc-shaped tool (7) and having an outer thread with a constant outer diameter (D) and that forms a first securing element (14) for a lo... | 03/15/2011 |
| 7887395 | Sanding tool with pivotally coupled head assembly A sanding tool includes a handle assembly with a support member and a head assembly that includes a sanding member that is rotatable relative to the handle assembly about a drive axis. The sanding tool also includes a pivot assembly that pivotably couples the head a... | 02/15/2011 |
| 7854649 | Hand-held power tool, in particular a sander A hand-held power tool, in particular a sander, includes a housing (10) and a motor (12) located in the housing (10). A driven shaft (16) that extends from a face end (14) of the housing (10) is drivable by the motor (12 | 12/21/2010 |
| 7722444 | Angle grinder An angle grinder is provided including a trigger assembly for selectively actuating the angle grinder. A particle separation assembly is provided for the removal of any dust, particle, or artifacts that may have entered into the housing of the angle grinder. A brush... | 05/25/2010 |
| 7699687 | Compact electric sanding machine The present invention particularly relates to a hand-held sanding machine with an outer housing (1), a tool shaft (2) and a brushless electric drive motor. In the present invention, the rotor of the drive motor is fastened to the tool shaft (2) ... | 04/20/2010 |
| 7654886 | Pneumatic grinder The present invention is a pneumatic grinder, with a housing, an air chamber stand, and a rotor. The air chamber stand includes a cylinder, an upper cover and a lower cover. The cylinder is fitted with an inlet hole and an exhaust hole. There is a lateral exhaust ho... | 02/02/2010 |
| 7588484 | Mounting system for grinding wheels and the like A mounting system for rotating tools such as grinding wheels in a hand-held power tool, includes a hub mountable to the tool drive shaft and a rotating tool element removably affixable to the hub. The tool has at least one flange that engages a corresponding circumf... | 09/15/2009 |
| 7549913 | Sanding tool with pivotally coupled head assembly A sanding tool includes a handle assembly and a head assembly having a sanding member. The sanding tool also includes at least one pivot member that pivotably couples the handle assembly and the head assembly such that the head assembly is pivotable about a pluralit... | 06/23/2009 |
| 7517276 | Power tool A power tool has a handle holder portion having a semispherically bulging outer circumference, and an arm portion enclosing the handle holder portion and having a semispherically recessed inner circumference. The bulging outer circumference of the handle holder port... | 04/14/2009 |
| 7500907 | Water driven motor The present invention provides an assembly of machined or precision cast components which combine to form a high pressure water powered motor. The motor includes a rigid metal housing, a high pressure water inlet, an impeller rotatably mounted within the housing, an... | 03/10/2009 |
| 7458884 | Grinding disc for grinding machines In a grinding disk (100) for the rotary slaving on a driven shaft of a grinding machine, in particular of a hand grinder, which has at least one supporting plate (10) with at least one cut or opening (20) through which the abrasive dust which de... | 12/02/2008 |
| 7438634 | Clamping fixture for detachably fastening a disk-shaped tool A clamping fixture for detachably fastening a disk-shaped tool on a rotatably driven working spindle with a driven gear includes a fastening element a supporting flange arranged so that the tool is accommodated between the fastening element and the supporting flange... | 10/21/2008 |
| 7427228 | Handheld material conditioner A handheld material conditioner including at least three orbital head assemblies. The handheld material conditioner including a motor, where the motor is connected to the at least three orbital head assemblies. The handheld material conditioner including a housing t... | 09/23/2008 |
| 7402095 | Method for removing trip hazards in concrete sidewalks A method for cutting a chamfer on an edge of a concrete slab, the method comprising the steps of: making a generally planar cut, beginning a distance from the edge, with a generally circular, generally laminar concrete saw blade rotatably powered by a right-angle gr... | 07/22/2008 |
| 7381117 | Compound hook and loop drum system for a floor sander A powered floor sanding system with a motorized drum-type floor sander with a sanding drum configured as a drum core with a compliant sole covered with a first component layer of a hook and loop fastener system, to which is fastened a removable drum surface of back ... | 06/03/2008 |
| 7377838 | Floor treating machine A floor treating machine has a frame and a housing connected rotatably to the frame according to a main rotation axis. At least three heads are suspended rotatably with respect to the housing according to respective rotating axes, which are generally parallel to the... | 05/27/2008 |
| RE40345 | Powered oscillating hand tool A powered oscillating hand tool includes a drive unit having an electric motor and a drive shaft; a bearing eccentrically mounted on the drive shaft and located radially eccentrically relative to the drive shaft; a carrier plate mounted on the bearing and a platen f... | 05/27/2008 |
| 7377837 | Grinding or polishing arrangement A grinding or polishing machine or device having a grinding or polishing disc for grinding or polishing a work piece for the condition of the work piece placed against the lower surface of the grinding or polishing disc. The grinding or polishing disc has a pluralit... | 05/27/2008 |
| 7371150 | Electric sander and motor control therefor A hand held orbital sander has a housing having an electronically commutated motor disposed therein and an orbit mechanism disposed beneath the housing. A motor controller is coupled to the motor. The motor controller changes the speed of at which it runs the motor ... | 05/13/2008 |
| 7357701 | Water driven rotary tool The present invention provides an assembly of machined or precision cast components which combine to form a high pressure water powered rotary tool. The rotary tool includes a rigid metal housing, a high pressure water inlet, an impeller rotatably mounted within the... | 04/15/2008 |
| 7357705 | Diamond disk A novel diamond disc is disclosed. The diamond disc comprises a plurality of diamond grains 2 bound on a disc. The diamond grains 2 are arranged in such a manner that a distance m1 between diamond grains 2 which are located on a common ro... | 04/15/2008 |
| 7350965 | Industrial mixer stand A Stand for Industrial Mixers is disclosed. The stand includes a tiltable cradle for securely holding a mixer while a worker conducts maintenance on it. The stand further has an integrated seat to accommodate the worker. Furthermore, the stand provides a convenient ... | 04/01/2008 |
| 7341173 | Exhaust gas diffuser and filter system for a pneumatic nail gun The exhaust gas diffuser and filter system for a pneumatic nail gun provides for the diffusion and filtering of exhaust gas, which is typically pressurized air, generated by the pneumatic nail gun during usage thereof. The system includes a diffuser plate adapted fo... | 03/11/2008 |
| 7326215 | Curved surgical tool driver A surgical tool driver has a driven end connectable to a rotary drive source and a driving end connectable to a surgical tool. A shaft assembly there between includes a hollow outer shaft and a flexible drive shaft for transmitting rotary power from the driven end t... | 02/05/2008 |
| 7318768 | Low profile electric sander A power tool is a “low profile” power tool, that is the overall height of the power tool is sufficiently small that a user can grasp the top of the power tool with the user's hand and the hand will be positioned relative close to the bottom of the power tool com... | 01/15/2008 |
| 7313838 | Powered cleaner/polisher A motorized cleaning/polishing device includes a housing and a carrier with a detachable cleaning/polishing attachment. The housing contains a rechargeable battery, motor and flex mount having flexible pillars to which the carrier is mounted. The carrier is also cou... | 01/01/2008 |
| 7311589 | Electric portable power tool with rotatable guard A manually operated electric machine tool for a disk-shaped rotating tool (18), having a machine housing (11) from which a drive spindle (12) for the tool (18) protrudes and on which a hollow cylindrical collar (15) is embodied coa... | 12/25/2007 |
| 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 |
| 7310851 | Cleaning device with disposable cleaning element A cleaning device has a cleaning element having an axis, an axial inner region and an axial outer region and being formed so that at least the axially outer region is bendable to follow a shape of a surface to be cleaned when pressed against the surface, a holding e... | 12/25/2007 |
| 7311588 | Water grinder A water grinder including: a housing in which a rotary shaft is drivably disposed, the rotary shaft being formed with an axial passage; a water incoming flow way formed in the housing; a valve disposed in the housing and controllable by a selection switch; an extern... | 12/25/2007 |
