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 |
| 7585104 | Rotary processor The present invention provides an apparatus for increasing the intrinsic viscosity of a polymer. The apparatus includes a rotary kiln with internal walls for delaying progress of the polymer to the exit of the kiln to be subject to sufficient processing to obtain de... | 09/08/2009 |
| 7244061 | Marinating machine A marinating machine rotates a drum containing the food to be marinated. The drum is positioned on a pair of rotatable shafts only one of which is drivingly engaged to a motor rotating the drum. The pair of shafts is spaced far enough apart from each other such that... | 07/17/2007 |
| 7229204 | Portable mixing apparatus A portable mixing apparatus that employs disposable 5-gallon plastic buckets as containers for mixing mortar, grout, plaster and other materials. First and second motor-driven rollers support the buckets at a downwardly sloped angle. A separate mixing basket is plac... | 06/12/2007 |
| 7204636 | Granular and aggregate blending, cooling and screening rotary drum A rotary drum configured for the efficient blending, cooling, and screening of granular products having an outer cylindrical shell, an intake end, and an exit or discharge end. The rotary drum is normally rotated at a predetermined speed by a conventional drive pack... | 04/17/2007 |
| 7168846 | Rotary processing device A rotary product processing device that has a frame made of endplates and at least one sidewall of one piece and unitary construction that encompasses a product processing chamber and product conveyor that is rotatively supported by a plurality of bearings that are ... | 01/30/2007 |
| 7165878 | Ice cream and topping mixing attachment An ice cream and topping mixing attachment for being detachably connected to an ice cream dispenser for the mixing in of a topping ingredient with ice cream. The mixing attachment includes a mixing machine housing having a connector assembly, a topping chamber havin... | 01/23/2007 |
| 7147362 | Method of mixing by intermittent centrifugal force An apparatus for mixing fluids comprises a housing having at least a portion of its interior, for example, a channel, with capillary dimensions and at least one structural member in the interior adjacent an end of the channel. The dimensions of and placement of the ... | 12/12/2006 |
| 7096695 | Washing machine Washing machines having improved frictional forces with laundry. Those machines include a cabinet with a door, a tub inside for retaining wash water, and an internal vessel, inside the tub that is coupled with a motor that rotates the internal vessel. A friction mem... | 08/29/2006 |
| 7056010 | Blender for mixing particulate solid materials including an internal baffle A bin blender for mixing particulate solid materials, comprises a closable bin for containing the materials and having a non-circular cross-sectional shape, mounted for rotation of the bin about an axis extending across the interior of the bin, and an internal baffl... | 06/06/2006 |
| 6910801 | Agitating and mixing device The object of the present invention is to provide a device with a simple structure which can uniformly mix bulk materials. A device comprises a rotary shaft 6 to be rotated by a driving means 3, a container outer shell 7 fixed to the rota... | 06/28/2005 |
| 6896400 | Granular product blending and cooling rotary drum A rotary drum configuration for the efficient blending, cooling, and screening of granular products having an outer cylindrical shell, an intake end, and a discharge end. The rotary drum is normally rotated at a predetermined speed by means of a conventional drive p... | 05/24/2005 |
| 6726351 | Apparatus and method for controlling the flow of material within rotary equipment The present invention is to a method and apparatus for changing the flighting (20) within a mixing drum (12). A plurality of radially spaced apart doors or paddles (30) are connected to one of the two adjacent supports (60). Each door or ... | 04/27/2004 |
| 6555062 | Reagent container for an automated analyzer An analyzer for performing automated assay testing. The analyzer includes a storage and conveyor system for conveying cuvettes to an incubation or processing conveyor, a storage and selection system for test sample containers, a storage and selection syst... | 04/29/2003 |
| 6494612 | Racetrack-shaped dynamic gravity flow blender Apparatus for blending particulate solids or liquids includes a blending vessel having a racetrack-shaped cross section at each elevation above its lower end. The racetrack-shaped cross section consists of two spaced opposed semicircles having ends that a... | 12/17/2002 |
| 6397492 | Apparatus and method for processing municipal solid waste The present invention relates to an apparatus and method for separating and processing solid waste, often but not necessarily from municipalities (and so will be generically referred to herein as municipal solid waste or "MSW"), into useful products, and ... | 06/04/2002 |
| 6350052 | Manual rolling concrete mixing device A new concrete mixing device for mixing concrete as a user moves the device along a ground surface. The inventive device includes a rolling drum with one of the ends of the rolling drum having an opening into the interior of the rolling drum. The device a... | 02/26/2002 |
| 6151932 | Drum for treating leather, fur and similar products A drum to be used in the treatment of hides and leathers is fitted with a number of bats, the arrangement of the bats being determined by an imaginary polygon having an even number of vertices. A pair of bats, parallel to each other, are placed at opposit... | 11/28/2000 |
| 6074615 | Reagent container for an automated analyzer An analyzer for performing automated assay testing. The analyzer includes a storage and conveyor system for conveying cuvettes to an incubation or processing conveyor, a storage and selection system for test sample containers, a storage and selection syst... | 06/13/2000 |
| 5975752 | Fabricated steel lifter for rotary kiln A fabricated steel lifter for enhancing mixing of particulate material in a rotary calcining kiln. The lifter is fabricated from a weldable heat resistant alloy and includes a base plate, an anchor post, a sole plate, a face plate attached to the sole pla... | 11/02/1999 |
| 5947015 | Massage plant for meat A massage plant for the processing of chunks of meat includes a container (22) which is rotatable about its longitudinal axis and includes axially or substantially axially extending interior conveyors (16), each made as a hollow profile containing interna... | 09/07/1999 |
| 5934800 | Portable cement mixer and method A portable mixer and method include providing a support frame having wheels and an opposite handle, an outer drum having a rotational drive mounted on the support frame, a rotatable drum, and a removable mixing container held inside the rotatable drum. A ... | 08/10/1999 |
| 5925311 | System for incorporating a binder in a mixture of powdered materials and apparatus therefor A mixture of powdered materials is subjected in an enclosure to a dispersing movement such that the components of the mixture are caused to fall freely in a dispersed form. During the fall, the dispersed components are sprayed with a binder dissolved in a... | 07/20/1999 |
| 5816702 | Drum with internal static mixer A mixing vane is mounted interior of a drum having a plastic lining--preferably a vinyl lining. Preferably two mixing vanes covers a cylindrical solid angle of 240° while 120° remains unoccupied to permit convenient pouring of the contents from the barr... | 10/06/1998 |
| 5774772 | Toner cartridge having a toner stirring member A toner cartridge for an image forming apparatus is provided with a toner stirring member, which is mixed in with the toner in the toner cartridge. Blocking of the toner is prevented and fluidity of the toner is improved by the movement of the toner stirr... | 06/30/1998 |
| 5613774 | Cooking pot enclosing rotatable spherical chamber A cooking pot enclosing a rotatable spherical chamber includes a pot body. A cover is provided on an open top of the pot body to define an enclosed space. A removable, spherical chamber assembly is rotatably suspended within the pot body by a pair of oppo... | 03/25/1997 |
| 5554221 | Apparatus for dispensing portions of material A system and apparatus for producing seasoned food products where seasoning is performed at individual packaging lines. The product is conveyed from the preparation area to a packaging area in an unseasoned condition. Upon reaching the packaging lines, wh... | 09/10/1996 |
| 5542762 | Agitator powered by electric motor having a spherical rotor An agitator includes a multi-freedom electric motor having a broad operational range. The electric motor includes a spherical rotor, a plurality of magnets disposed on an outer surface of the rotor with polarities of the respective adjacent magnetic poles... | 08/06/1996 |
| 5520457 | Machine and method for the continuous treatment of surfaces of articles of reduced thickness Method and apparatus for the continuous treatment of reduced thickness article surfaces, for example, for the surface treatment of fragile products of small dimensions. The product to be treated is continuously poured, along with a treatment product, if n... | 05/28/1996 |
| 5516207 | Method for blending dry flowable materials A method for blending dry flowable materials by charging a blending container, the blending container having geometrical shaped deflector members mounted interior of its blending chamber. A crest of the deflector members being angularly positioned with re... | 05/14/1996 |
| 5501978 | Aeration drum for composting toilet An aeration drum is rotatably-mounted for rotation about a longitudinal axis oriented horizontally inside a housing which has an air inlet and air outlet for venting the unit. A removable receptacle receives decomposed solid waste matter from the aeration... | 03/26/1996 |
| 5492407 | Chamber for treating wastes and removing the treated wastes following treatment An improved heating chamber for wastes, of the type utilized to subject the wastes within the chamber to steam, the chamber comprising a substantially cylindrical body portion, having a continuous sidewall, and first and second end portions, and defining ... | 02/20/1996 |
| 5490928 | Tandem waterwheel trommel A tandem waterwheel type trommel apparatus having a laterally-disposed drain-off drum and a laterally-disposed classifying drum combined through a short pipe to form a main body, which is rotatably disposed on a base and is connected to a drive unit. A fr... | 02/13/1996 |
| 5480226 | Rotary drum dryer having aggregate cooled shielding flights and method for the utilization thereof A rotary drum dryer has devices for cooling shielding flights located in the combustion zone of the drum. The devices comprise cooling flights which rotate with the drum to scoop up relatively small amounts of virgin aggregate from aggregate accumulated i... | 01/02/1996 |
| 5429434 | Concrete mixer including a movable discharge chute assembly A horizontal drum concrete batch mixer comprising a cylindrical mixer drum which may be rotated in a mixing direction or a discharge direction. The interior of the drum has mixing blades provided thereon for mixing the concrete when the drum is rotated in... | 07/04/1995 |
| 5427947 | Environmental chamber and method for composting solid waste A rotatable environmental chamber for reducing solid waste includes a cylindrical container having front and rear end caps, seal bearings and support plates for journaling the container each having a central opening. The seal bearings are pinned to the en... | 06/27/1995 |
| 5427449 | Concrete mixing drum fin structure An assembly which is adapted for mounting inside a mixing drum (18) and a mobile system for mixing and dispensing concrete includes a spiral fin assembly (36) for mixing and guiding a substance when the mixing drum (18) is rotated. The fin assembly (36) i... | 06/27/1995 |
| 5407809 | Digester for converting organic material into compost A rotatable digester drum for convening organic waste material into compost which has internally disposed along its longitudinal axis a series of spaced-apart baffles, each baffle having a variable cross sectional area ranging from 60 to 100% of the cross... | 04/18/1995 |
| 5403086 | Mixing device A mixing device such as a concrete mixer is provided in the form of a hollow cylindrical drum with an opening at one end. A lid is engageable with the drum to close the opening. At least one and preferably two baffles are provided within the drum and thes... | 04/04/1995 |
| 5380085 | Concrete mixer with reciprocating discharge chute A horizontal drum concrete batch mixer comprising a cylindrical mixer drum which may be rotated in a mixing direction or a discharge direction. The interior of the drum has mixing blades provided thereon for mixing the concrete when the drum is rotated in... | 01/10/1995 |
| 5378061 | Concrete mixing drum fin structure An assembly which is adapted for mounting inside a mixing drum (18) and a mobile system for mixing and dispensing concrete includes a spiral fin assembly (36) for mixing and guiding a substance when the mixing drum (18) is rotated. The fin assembly (36) i... | 01/03/1995 |
