Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 6991186 | Spray boom for a hydraulic descaling facility In order to provide a spray boom with a plurality of spray nozzles for a hydraulic descaling facility with which a high temperature constancy from beginning to the end of the rolling stock is insured and a too rapid cooling of the surface is prevented, it is propose... | 01/31/2006 |
| D512302 | Hammer nut | 12/06/2005 |
| 6965213 | Battery pack with vertical cells and slide in latch A battery pack (1) has a housing (2) with a floor part (5) and side walls (6.1, 6.2, 6.4; 8.1, 8.2, 8.4). The side wall (6.1, 8.1) has a recess (10.1, 11.1) oriented towards the inside of the housing. A plurality of cells ar... | 11/15/2005 |
| 6953197 | Quick-action locking device for an electric power tool A quick-action locking device for an electric power tool including a locking spindle (4) axially displaceable in the hollow spindle (2) of the electrical power tool between a working tool locking position and a working tool exchange position, and a loc... | 10/11/2005 |
| 6950639 | Local oscillator for generating an HF signal for direct mixing by using avalanche photodiodes A local oscillator for use in an optoelectronic distance measurement system for generating a narrow-band HF signal for direct signal mixing with a reception signal generated by an avalanche photodiode (2) from a light signal impinging on the latter, with the ... | 09/27/2005 |
| 6933632 | Commutating rotary switch A turning-pivoting commutating rotary switch (1) with brush guides (2) for reversing the direction of rotation of a universal motor, which has two stator contacts (3a, 3b) each making contact with a contact rail (5... | 08/23/2005 |
| 6929227 | System for connecting mounting rails A system (1) for connecting mounting rails comprises a base member (2) and an angular attachment member (3). The base member (2) has an opening (6.1, 6.2) in at least one lateral wall (4.1, 4.2 or 4.3) for passage the... | 08/16/2005 |
| 6927353 | Device switch for electric hand-held tools A device switch (2) for a hand-held tool, particularly for a screw drill or drilling machine, having a control device (50) which is arranged in a switch housing (4), a trigger (6) which is movably supported at the switch housing (4... | 08/09/2005 |
| 6926583 | Grinding wheel A grinding wheel including a circular grinding region (1) with a plurality of through-openings (3) formed therein, a central mounting region (2) coaxial with the grinding region (1), and a plurality of cutting bodies (4) having a r... | 08/09/2005 |
| 6921501 | Method of forming a circumferentially closed concrete wall having the same cross-section over the entire height thereof A method of forming a circumferentially closed wall having the same cross-section over its entire length included providing at least two circumferentially closed inner falseworks each formed of circumferentially closed inner part and a circumferentially closed climb... | 07/26/2005 |
| 6921008 | Setting tool A setting tool for driving in fastening elements includes a piston guide (13) located in the receptacle (12) and having a hollow chamber (14) in which a setting piston (15) is displaceably arranged, a safety element (21), a piston ... | 07/26/2005 |
| 6917415 | Method of and apparatus for electro-optical distance measurement A method of and an apparatus for an electro-optical distance measurement in which a laser beam of a laser diode (1) is directed as an intensity modulated train of emitted light pulses onto an object, the reflected measurement pulse train (10) is detect... | 07/12/2005 |
| 6911793 | Operating procedure and cooling system mechanism for the motor of an electric powered tool An operating procedure for the motor (1) of an electric powered tool. The operating idle speed of the motor (1) is set to a value using regulator electronics (4), and the operating speed is the same as a chosen operating speed (n1). T... | 06/28/2005 |
| 6910694 | Electrical tool with a quick-action clamping device A quick-action clamping device for a power tool includes a clamping spindle (4) arranged in the hollow spindle (2) of the power tool, an elastic member (5) for biasing the clamping spindle (4) into its clamping poition, in which the worki... | 06/28/2005 |
| 6911895 | Electrical module assembly with an explosion-proof switch An electrical module assembly includes an electrical module located in the module housing (1) and having an explosion-proof contactless switch (4) including a movable switching element (7) and an actuation element (6) for actuating the sw... | 06/28/2005 |
| 6908109 | Steering gear shaft for a steering column of a motor vehicle A steering gear shaft for a steering column of a motor vehicle has at least one crash-deformable section formed as a corrugated tube at least a portion of a longitudinal extent of which that contains at least one of corrugation crests of the corrugated tube, is form... | 06/21/2005 |
| 6905056 | Setting tool A setting tool for driving fastening elements in a constructional component includes a drive piston displaceable in the guide space (11) of the piston guide (12) by propellant gases generated by a propellant charge from an initial position (40) ... | 06/14/2005 |
| 6905055 | Setting tool A combustion-engined setting tool, including a housing (11), an axially displaceable piston guide (13) and a firing pin guide (12) provided on a side of the piston guide (13) facing in the direction opposite the setting direction and axia... | 06/14/2005 |
| 6902356 | Hand tool with tool bit storage receptacle A motor driven hand tool has a motor housing (6) with a main handle (8) near its rear end and an auxiliary bracket (10) spaced ahead of the main handle. The auxiliary bracket has a storage receptacle (16) for holding a plurality of tool b... | 06/07/2005 |
| 6902357 | Cutting tool A rotatable cutting tool having s support region (1) with an end surface (2) and a plurality of recesses (4) extending from the end surface (2) and in which, respectively, a plurality of cutting elements (5) are arranged, with each... | 06/07/2005 |
| 6903810 | Optical lateral distance hand-held measuring device A lateral distance hand-held measuring device having a computer unit (2), an input/output unit (3) and a first laser distance measuring module (4a, 4b) transmitting a visible measurement laser beam (I, II). A second laser di... | 06/07/2005 |
| D505821 | Coffee machine | 06/07/2005 |
| 6902012 | Percussion electrical hand-held tool An electrical hand held tool for producing at least a percussion movement of a working tool includes an electrical drive, a first, oscillating subassembly including a percussion mechanism (2) and a rotor (5) of the electrical drive for transmitting tor... | 06/07/2005 |
| 6896290 | Steering gear shaft for a steering column of a motor vehicle A steering gear shaft for a steering column of a motor vehicle has at least one crash-deformable section formed as a corrugated tube at least a portion of a longitudinal extent of which that contains at least one of corrugation crests of the corrugated tube, is form... | 05/24/2005 |
| 6896605 | Grinding tool with extraction hood A grinding tool comprising a housing (1) and a motor-driven driver spindle (2) equipped with a tool receptacle (4) at a free end (3) projecting from the housing (1). An extraction hood (5) is connected to the housing (1 | 05/24/2005 |
| 6896794 | Fuel for internal combustion-powered tools A fuel for internal combustion-powered tools, especially for setting tools for fastening elements and based on a liquefied, combustible gas or gas mixture with a vapor pressure of 2 to 15 bar absolute at 20° C., and at least one combustible compound, which is solub... | 05/24/2005 |
| 6889884 | Setting tool A setting tool including a piston guide (1) for guiding the drive piston (4) of the tool, a bolt guide (2), and a buffer member (8) located in the guide bore (12) of the piston guide (1) between the sealing element (5... | 05/10/2005 |
| 6891097 | Damping element A pillow-shaped damping element to be located in an interior of a percussion instrument includes upper and bottom sides, a filling material having sound-absorbing characteristics and located between the upper and bottom sides, and a holder for a microphone provided ... | 05/10/2005 |
| 6887372 | Portable drilling water filter with self-cleaning system A drilling water filter (1) with a self-cleaning system including a filter container (2), a cover (3) and a filter element (6) that can be inserted in the flow arm between an inlet (4) and an outlet (5) for separation of sol... | 05/03/2005 |
| 6887018 | Chuck for annular core bit A chuck for an annular core bit (1) having an inner thread (2) includes a motor-driven rotatable spindle (4) having a threaded support (5) cooperating with the inner thread (2) for supporting the annular core bit (1), a stop... | 05/03/2005 |
| 6887142 | Tool receptacle for a grinding tool A grinding tool, in particular a concrete grinding tool, comprising a drive spindle (1) driven by a motor in the working rotational direction (A) having a tool receptacle (7) at its free end. The tool receptacle (7) is provided with a flange ( | 05/03/2005 |
| 6882127 | Electrical hand tool machine with soft-start An electrical hand tool machine (1) having a motor switch (2) configured as a button and a current regulator (4) disposed in the current circuit of an electrical motor (3), having a soft-start input (5), in whose branch current a t... | 04/19/2005 |
| 6880738 | Propellant charge magazine for a setting tool The present invention relates to a propellant charge magazine for setting tools and a setting tool for driving fasteners into a substrate. The propellant charge magazine of the invention comprises a housing (24) with an internal housing space for receiving a ... | 04/19/2005 |
| 6877308 | Portable combustion-engined power tool and a method of operating same A method of controlling operation of a portable, combustion-engined, power tool and including feeding fuel into the combustion chamber of the power tool, before ignition, several times one after another in accordance with an intermittent metering operational mode, a... | 04/12/2005 |
| 6878430 | Floor covering of an elastically deformable material A floor covering (1) made of an elastically moldable material, in particular from a synthetic rubber, which is provided with a regular arrangement consisting of first projections (3) on the upper side (1a) and with a regular arrangement o... | 04/12/2005 |
| 6874659 | Pressure container A pressure container with an outer container (20) and a constantly deformable or compressible inner container is arranged within the outer container (20), whose container wall is constructed of a metallic foil. A fill material chamber (11) for f... | 04/05/2005 |
| 6872570 | Laboratory method for tempering reaction samples A laboratory device for jointly tempering reaction samples in at least two steps in respectively assigned, specified temperature ranges, which are carried out repeatedly and consecutively as sequences of steps, the laboratory tempering device, in one step of the seq... | 03/29/2005 |
| 6871693 | Continuous casting installation comprising a soft reduction section The invention relates to a method and a device for the continuous casting of slabs or ingots, in particular of thin slabs in a continuous casting installation. Said installation comprises a soft reduction section in a continuous casting guide under the mould. The so... | 03/29/2005 |
| 6869258 | Drill stand with settable base plate A drill stand (1) for a manually operable tool device (2) is formed of a fixedly mountable base plate (4) having a through passageway (5) extending perpendicularly therethrough for the passage of a clamping bolt (6) having at least... | 03/22/2005 |
| 6868919 | Switching device for multifunctional hand-held machine tool The object of the invention is a device, intended for a multifunctional, hand-held tool machine, for example, an electric combination hammer, for the ON/OFF switching or changeover of individual system functions when changing the processing mode, for example, from â... | 03/22/2005 |