Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 8181971 | Sealing ring A sealing ring has a sealing element with at least one fastening part and at least one sealing part provided with a sealing edge. The sealing element is essentially of rotational symmetry. The sealing edge, at least over a portion of a circumference thereof, is posi... | 05/22/2012 |
| 8172003 | Overload protection device and machine tool having such overload protection device A portable device having an overload protection device for motor-operated tools has a drive motor, a drive shaft connected to the drive motor and driven in rotation by the drive motor, and an output shaft for driving a cutting tool, wherein the output shaft is arran... | 05/08/2012 |
| 8170817 | Method and device for determining the electrical loadability of overhead lines by means of temperature measurement In a method for determining the electrical loadability of power lines by temperature measurement, the temperature is measured with at least one sensor arranged on the power line and connected to a data processing system, wherein the time-dependent temperature of the... | 05/01/2012 |
| 8167446 | Spotlight and water fountain The invention concerns a spotlight for use in bodies of water. The spotlight has at least one lighting unit for illuminating fountains, water jets or the like, wherein the lighting unit is liquid-cooled and has at least one light emitting diode or a light emitting d... | 05/01/2012 |
| 8167005 | Machine for filling cups with foodstuff A machine for filling cups with foodstuff has metering stations having metering modules provided with filling nozzles, respectively, for introducing product flows into horizontally supplied cups. A programmable control unit cooperates with the metering modules in su... | 05/01/2012 |
| 8166931 | Carburetor and two-stroke engine with a carburetor A carburetor has a carburetor housing in which an air passage and a mixture passage are disposed. A barrel valve controls the air passage and the mixture passage. The barrel valve has a mixture passage section and an air passage section formed therein. The air passa... | 05/01/2012 |
| 8166575 | Protective headgear with a visor and ear muff A protective headgear combination has a helmet and at least one ear defender secured on the helmet rotational position of the at least one ear defender relative to the helmet is adjustable about a first axis of rotation, wherein the first axis of rotation is positio... | 05/01/2012 |
| 8162234 | Nozzle arrangement for creating a water jet A nozzle arrangement for generating a water jet has a nozzle plate having a nozzle opening. In order for the nozzle arrangement to be able to generate a water jet that provides improved utilization as a light guide also in bodies of water with wave motion and that i... | 04/24/2012 |
| 8161931 | Method for operating an internal combustion engine In a method for operating an internal combustion engine that has a starter device for starting the internal combustion engine and a device for supplying fuel controlled by a control device, it is determined whether cold start conditions or hot start conditions exist... | 04/24/2012 |
| 8161620 | Annular composite workpieces and a cold-rolling method for producing said workpieces In a cold rolling method for producing annular composite workpieces, at least two hollow cylindrical workpieces made of different materials are inserted into one another. The at least two hollow cylindrical workpieces are roll formed by pressing the at least two hol... | 04/24/2012 |
| 8151976 | Device for transporting and shaking blanks A device for transporting and shaking blanks supported on pallets has a shaking station with a shaking table, a feeding conveyor upstream of the shaking station in a transport direction of the blanks, and a discharge conveyor downstream of the shaking station in the... | 04/10/2012 |
| 8148974 | Pulse generator wheel, preferably for shafts, and method for manufacturing such a pulse generator wheel A pulse generator wheel has a cylindrical wall provided with windows distributed about a circumference of the cylindrical wall and closed axially at a first end by a ring. The ring is made of circumferentially extending profiled sections of profiled parts that are s... | 04/03/2012 |
| 8146626 | Flexible container, method and device for filling said flexible container A flexible container has a container body with container walls that define a container interior. A container socket is connected to the container body and has a container opening through which the container interior is filled. Carrying loops are connected to the con... | 04/03/2012 |
| 8146510 | Workpiece support system A workpiece support system has a driven, circulating traction device, a stationary base frame, and at least one workpiece support that has a load carrier and a traction carriage. The traction carriage has a clamping device with upper and lower clamping elements betw... | 04/03/2012 |
| 8146449 | Device and method for nondestructive testing of pipelines A device for nondestructive testing of pipelines is designed to move along a pipeline and has at least one measuring unit for acquiring measured data of the pipeline, wherein the device is self-propelled and has at least one functional unit rotatable about a central... | 04/03/2012 |
| 8136499 | Cover arrangement for a hand-held power tool A cover arrangement of a hand-held power tool has a cover having at least one fastening element for connecting the cover to an additional component of the power tool. The cover has a wall component having a shape-elastic yielding support forming a monolithic part of... | 03/20/2012 |
| 8136256 | Motor chain saw A motor chain saw has a housing, a motor arranged in the housing, a drive pinion driven by the motor, and a guide bar connected to the housing. A saw chain is driven in circulation about the guide bar by the drive pinion. A lateral panel is arranged between the hous... | 03/20/2012 |
| 8132484 | Sprocket cover arrangement for a hand-held chain saw A sprocket cover arrangement for a hand-held chain saw has a housing and a sprocket cover that has an opening and is connected to the housing. At least one stud bolt having a first end secured to the housing and having a second end that is a free threaded end is pro... | 03/13/2012 |
| 8100156 | Cylindrical cutter with helical cutting line A cylindrical cutter for machining wood, wooden materials and plastics, has at least one helical cutting edge, wherein a helix angle λs of the at least one cutting edge is in a range of 70° to close to 90°, a rake angle γr of the at least o... | 01/24/2012 |
| 8091745 | Disposable tap for a pressurized liquid container The invention relates to a disposable tap (1) for tapping liquid from a pressurized liquid container. Compared to prior art taps, the inventive disposable tap is modified so that it can be preferably placed in the upper area of the lateral wall of the liquid ... | 01/10/2012 |
| 8083395 | Device and method for admixing liquids into flowable bulk material A device for admixing a liquid into flowable dry materials has a housing with a mixing chamber having an inner wall with an impact area and an exit opening at a bottom end of the mixing chamber. Dry material is supplied from above into the mixing chamber and falls d... | 12/27/2011 |
| 8079457 | Device for feeding boards to crosscut saws A device for supplying boards to crosscut saws has a feeding device and a transverse transport unit arranged downstream of the feeding device. Several loading planes are arranged downstream of the transverse transport unit and positioned at different levels. The boa... | 12/20/2011 |
| 8062100 | Water supply for a hand-held power tool A water supplying device of a hand-held power tool has a water-conveying line and a valve arrangement arranged in the line for controlling the water flow through the line. The valve arrangement has a control valve with a valve body adjustable across a positioning tr... | 11/22/2011 |
| 8056426 | Method and device for controlling a hydraulically operated power wrench In a method for controlling a hydraulic power wrench with a pivotable lever pivoted by a piston-cylinder unit and a ratchet arrangement for stepwise rotation of a ratchet bushing by advancing and return strokes, parameters such as nominal torque or pre-load or screw... | 11/15/2011 |
| 8052357 | Device for removing by suction drill dust when drilling holes into walls A device for removing drill dust when drilling a hole into a wall has a base member and at least one vacuum chamber provided in the base member. At least one suction site is provided. A connector is connected to the base member and adapted to connect a vacuum unit t... | 11/08/2011 |
| 8047220 | Gas cabinet A gas cabinet has a housing receiving at least one gas bottle. The housing has at least one intake opening and at least one exit opening. A conduit system is located in the housing to which the at least one gas bottle is to be connected. A scavenging air passage for... | 11/01/2011 |
| 8042511 | Method and device for priming a fuel metering device In a method for priming a fuel metering device for an internal combustion engine with a piston arranged in a combustion chamber and driving a crankshaft that is rotatably supported in a crankcase, with a fuel pump that conveys fuel from a fuel tank to a metering val... | 10/25/2011 |
| 8033896 | Protective cover for a hand-held cut-off machine A protective cover of a hand-held cut-off machine has a bracket that is secured on the exterior side of the protective cover. The bracket is locked in at least one locked position with at least one locking projection in at least one receptacle of the protective cove... | 10/11/2011 |
| 8033000 | Method for effecting a screwed connection A screwed connection has a threaded bolt; a nut; a washer arranged between the nut and a surface of a component to be clamped; a screwing device with a housing, a holding tool connected to the housing, and a tightening tool that engages positively the nut; a measuri... | 10/11/2011 |
| 8026292 | Cyanate-based, carbon-dioxide-filled structured foams and method for their production The present invention concerns a polycyanurate foam with a structural element A and either terminal amino groups and/or at least one of the following structural elements B, C, or D: wherein the foam has closed pores that co... | 09/27/2011 |
| 8026021 | Film forming material and preparation of surface relief and optically anisotropic structures by irradiating a film of the said material The present invention is directed to a film forming, photoactive, homogeneously mixed material comprising a complex prepared from (a) at least one ionic photosensitive compound which may undergo a photoreaction, selected from photoisomerizations, photocycloadditions... | 09/27/2011 |
| 8020256 | Pivot device A pivot device has a first hinge part and a second hinge part pivotably connected to the first hinge part about a pivot axis. A blocking device secures the first and second hinge parts in a pivoted position relative to one another against backward and forward pivoti... | 09/20/2011 |
| 8015660 | Vacuuming device A vacuuming device has a housing having an air intake and at least one air outlet opening. A suction motor is arranged in the housing. At least two filters are arranged in the housing and each has a flow passage to the suction motor, wherein dirty air sucked into th... | 09/13/2011 |
| 8011923 | Method for operating a laser system for bleaching teeth In a method for operating a laser system for bleaching teeth, a water-containing bleaching agent applied onto teeth is heated by a laser beam, wherein the laser beam has a wavelength in a range of 2.6 μm, inclusive, to 3.1 μm, inclusive, or in a range of 9.0 μm, ... | 09/06/2011 |
| 8000879 | Method for operating a two-stroke engine A two-stroke engine has a fuel supply device, an intake passage formed partially in the fuel supply device, and an air filter with clean air chamber. The intake passage upstream of the fuel supply device is connected to the clean air chamber. A partition divides the... | 08/16/2011 |
| D643142 | Pendant lamp | 08/09/2011 |
| 7974767 | Method for detecting operating parameters of a power tool comprising an internal combustion engine In a method for detecting an operating parameter of a power tool having an internal combustion engine with a cylinder, a piston delimiting a combustion chamber in the cylinder and driving a crankshaft supported rotatably in a crankcase, an intake supplying combustio... | 07/05/2011 |
| 7971537 | Amusement ride The carnival ride has a travel path for cars with seats and at least one screen arranged adjacent to the travel path. In order to design the carnival ride in such a way that the passengers in the car have an optimal gaming experience, the screen follows the car at l... | 07/05/2011 |
| D641097 | Rectangular lamp | 07/05/2011 |
| 7967471 | Lighting unit for water fountains, ponds or the like A lighting unit for water fountains, ponds and the like, has a housing that is sealed at least relative to splashing water. A light source is arranged in the housing. A lens is arranged in the housing for alignment of light emitted by the light source. An additional... | 06/28/2011 |
