...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7909114 | Drilling device A drilling device includes an end cutting tool, a main housing, a motor, a transmission, and a dust collection unit. The end cutting tool processes a workpiece. The motor is provided in the main housing for generating a torque. The transmission transmits the torque ... | 03/22/2011 |
| 7354226 | Hand-held power tool with a dust suction module A hand-held power tool (2) connectable with a dust suction module (32) includes a motor (64) and an air flow generator (66) which for cooling the motor (64) is located, together with the motor (64), in air flow path (62 | 04/08/2008 |
| 7347651 | Drilling device In order to improve a device (100) for a drilling machine (10) known per se for manual drilling with a casing (11), a grip (12), a tool chuck (13) and a tool (14), especially a drilling, reaming or counterboring tool, in suc... | 03/25/2008 |
| 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 |
| 7322429 | Portable drilling machine A portable drilling machine includes a housing; a drill chuck positioned on a front surface of the housing; a drill bit detachably coupled to the drill chuck; a driver positioned inside the housing to provide either the drill bit or the drill chuck with a rotational... | 01/29/2008 |
| 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 |
| 7281886 | Suction device A suction device that is used with a power drilling tool for aspirating material removable during operation of the drilling tool, and which includes a suction head (20) displaceable relative to the drilling tool (2) in a direction opposite a drilling d... | 10/16/2007 |
| 7258173 | Electric power tool An electric power tool includes a percussion mechanism (15) located in an external housing (12) of the power tool (11) and driven by a driving motor (13) connected with the percussion mechanism (15) by a gear unit (14). An a... | 08/21/2007 |
| 7252155 | Percussive power tool with flushing head A power tool (1) having a striking means (5), by which a percussive tool (2) that can be driven at least partially along an axis (A) struck directly and having a flushing bore (4) extending at least partially longitudinally through a tool... | 08/07/2007 |
| 7226251 | Drilling device and drilling method used with such a device A method for using a drilling device with a rotating tool, a drilling machine and lubrication device. The device includes an intermediate chamber for storage of chips produced during an elementary drilling operation, and a scavenging device capable of generating an ... | 06/05/2007 |
| 7185573 | Vacuum wheel chuck A wheel chuck assembly includes a support plate having at least one aperture formed therethrough. The support plate is adapted to be mounted upon a lathe spindle. An air conveying device is mounted adjacent to the support plate and is operable to induce an air flow ... | 03/06/2007 |
| 7182150 | Cordless hand held power tool with powered accessory An accessory system, such as a dust collection system (40) of a hand held power tool, such as a drilling and/or hammering tool comprising, the tool, an accessory unit (40) comprising a separate motor for powering the unit and releasably mountable on th... | 02/27/2007 |
| 7140450 | Percussion tool A percussion tool is described and which includes a housing mounting a tool bit; a reciprocally moveable hammer borne by the housing and which is operable to repeatedly strike the tool bit; and a reciprocally moveable piston enclosed within the hammer and which impa... | 11/28/2006 |
| 7094011 | Power tool A hand-held power tool includes a housing having a motor provided therein, a cutting accessory coupled to the motor and means for selectively directing a flow of air toward a point of cut of the cutting accessory. The flow of air acts to remove debris at the point o... | 08/22/2006 |
| 7047647 | Hand-held power tool with a suction device A hand-held power tool inclLldes motor-driven drive shaft (4) for driving a working tool (9) and located in the tool housing (1), and a suction device (2) formed as a modular unit releasably connectable wYith the tool housing (1) a... | 05/23/2006 |
| 7017680 | Hand held drilling and/or hammering tool with dust collection unit An electrically powered tool having a dust collection unit powered by a motor, which unit can be releasably fitted to the tool includes a plug arrangement and a cooperating socket arrangement, one of which is formed on the tool and the other of which is formed on th... | 03/28/2006 |
| 7004357 | Grease gun An apparatus converts rotary motion of a motor drive shaft into oscillatory motion of a work piece, for example, in a power tool. The apparatus comprises a planetary gear assembly connected to the motor for rotating an output gear. The output gear meshes with a driv... | 02/28/2006 |
| 6910960 | Hand machine-tool comprising a dust extraction device A hand power tool (10), in particular with integrated dust removal, that comprises a housing (12) on which a dust tube (22) is mounted that is capable of being interconnected with a dust box (24) by means of its dust inlet connection piec... | 06/28/2005 |
| 6641634 | Hand-held tool with dust extraction A manual machine tool (10) includes a vacuum device for dust removal (19) situated in its housing (12) and a blow-out connection (20) installed after this. A dust collection box (21), particulaily self-contained, can be attached in detachable fashion to t... | 11/04/2003 |
| 6481507 | Doweling hole drilling machine A doweling hole drilling machine includes a vehicle such as a tractor having a frame pivotally mounted to the side of the tractor. The frame is moveable around an axis parallel to the longitudinal axis of the vehicle from a first horizontal orientation to... | 11/19/2002 |
| 5772367 | Suction/blower attachment for power tools An attachment for a rotating tool bit provides air flow in the vicinity of the work area without the need for separate vacuum or compressed air supplies. The device is mounted on the shaft of the rotating tool bit and provided with a plurality of vanes wh... | 06/30/1998 |
| 5467835 | Drilling or chiseling tool with suction apparatus A drilling or chiseling tool includes a suction apparatus (8) releasably mounted on a housing (1) of the tool. The suction apparatus (8) contains a replaceable separating device (11) formed of a housing (13) subdivided into two separate chambers (K1, K2) ... | 11/21/1995 |
| 5199501 | Drilling or chiseling tool with suction apparatus A drilling or chiseling tool (1) includes a suction device (2) with a suction head (3), a suction line (4) extending from the suction head to a suction blower wheel (5) and a separating device (6). The suction device (2) is detachably connected with the t... | 04/06/1993 |
| 5129467 | Electric hammer drill having dust collecting device An electric hammer drill including a vacuum dust collecting device for collecting dust from an area of an article being drilled by a drill bit wherein a hose extending from a body of the hammer drill is directly connected to an end of a movable first pipe... | 07/14/1992 |
| 5113951 | Apparatus for driving a drilling or percussion tool This invention relates to a device for driving a drilling or percussion tool having a spindle that rotates with respect to a housing. One end of the spindle is adapted to fasten to a tool piece and the other end is connected to an oscillating percussion b... | 05/19/1992 |
| 5090499 | Dust extraction for drill A device for sucking up material removed by the bit of a portable drill is made in the form of a casing provided with means for securing it to the drill and having at least one portion constituting a handle to enable it to be gripped in one hand by the op... | 02/25/1992 |
| 4921375 | Antiscattering device for the collection of waste material produced in the course of drilling, milling and similar operations, to be fitted on the relevant machine tools An antiscattering device for the collection of waste material (dust, shavings) produced in the course of drilling, milling and similar operations, to be fitted in the most appropriate way on machine tools and basically made up of a bellows shaped bell (e.... | 05/01/1990 |
| 4512417 | Hydraulic reciprocating device This invention pertains to a hydraulic reciprocating device having a housing and a piston in the housing. The piston has a first and second surface, and a means for intermittently communicating the first surface of the piston with a hydraulic pressure sou... | 04/23/1985 |
| 4209069 | Drills with chip collectors A drill is disclosed having a shroud structure extending about a chuck and drill bit at the forward end of the tool, to receive cuttings produced by the bit, and having a receptacle preferably carried at the rear end of the drill and to which the cuttings... | 06/24/1980 |
| 4192390 | Power tool A power tool, particularly a hammer drill, is equipped with a blower which is mounted on the output shaft of the motor which drives the tool element which is clamped in the chuck of the power tool. The particulate material which is removed by the tool ele... | 03/11/1980 |
| 4036308 | Apparatus for removing the drillings from the drilling site of a drill In the process and apparatus for removing the drillings from the drilling te of a drill described, removal is effected through a conduit, extending along the axis of a drill and possibly an adapter for a drilling machine, by a vacuum provided by a compres... | 07/19/1977 |
| 3973633 | Hammer device A hammer mechanism is disclosed, which incorporates a hammer piston driven by a driving piston via a pressure-gas cushion in a working chamber. The hammer piston controls the transference of flushing gas from the working chamber to the tool during normal ... | 08/10/1976 |