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 |
| 7448499 | Automated bundle and pallet preparation system and method of use A device (or system) and method for sorting or sequencing product in different bundles. The device includes a staging area for separating a first plurality of bundles having a first product type and a second plurality of bundles having a second product type. A sorti... | 11/11/2008 |
| 7448474 | Method for making an elevator and system for elevator delivery Method for making an elevator, wherein the roping is selected according to the weight of the elevator car using the same drive machine, traction sheave and rope sheave regardless of the roping. For heavy elevators, Single Wrap roping is used, wherein the hoisting ro... | 11/11/2008 |
| 7445122 | Mechanical bucket A mechanical bucket for separating small material from larger material. The mechanical bucket includes a bucket adapted to receive and retain material within the bucket and a roller screen assembly removably secured to a bottom portion of the bucket. The material re... | 11/04/2008 |
| 7446278 | Method for detecting single postal covers and postal covers stuck together in a mail sorting machine The method of detecting single postal items and multiple overlapping postal items in a postal sorting installation consists in analyzing images (5) representing postal items (6) viewed from in front, and in applying to each image an outline-extracting ... | 11/04/2008 |
| 7438191 | Angle rod screen design A screen for use in distributing a fluid in a process flow system. The screen provides support, and provides for the ability to clean particulates from the screen. The screen includes profiled wires affixed to a support, where the support provides channels to distri... | 10/21/2008 |
| 7428971 | Method for sorting and recovering fine particle and apparatus for recovery The present invention provides a fine-particle sorting technique that uses optical pressure (optical force) and that can be applied in place of heretofore known cell sorting techniques; and a fine-particle recovering technique therefor. The fine-particle recovering ... | 09/30/2008 |
| 7426996 | Mail distribution apparatus and method A system for manual delivery of mail to a series of recipients includes a stack of mail holders each comprising a front flap, a back flap and a central fold. One or more mail pieces are disposed in each holder, such that all of the mail pieces in each holder are to ... | 09/23/2008 |
| 7422114 | Vibratory material separator having an adjustable air knife and a separation tube A vibratory material separating apparatus has at least two plateau conveying surfaces interrupted by a drop out opening. A composite mixture is conveyed by a vibrating action beyond the first conveying plateau and over a foraminous section in the first conveying pla... | 09/09/2008 |
| 7416086 | In-line sorter for fasteners An in-line sorter for fasteners which includes a track for receiving the head of a fastener. Fasteners move along the track, past one or more stations which reject those fasteners which do not meet certain specifications. Specifically, four stations may be providedâ... | 08/26/2008 |
| 7413058 | Active slide for the doors of lifts' cabins An active slide (10) for doors of lifts' cabins, comprising a linearly developing blade, vertically oriented, featuring respective ends folded according to the same angle, connected in an articulated manner with a carriage (12) connected to a driving e... | 08/19/2008 |
| 7413084 | Method and system for separating particulate matter The present invention is directed to a system and method for continuously or substantially continuously separating particulate matter based on particle size and/or density of the matter. The system includes a separation chamber having a bottom portion disposed withi... | 08/19/2008 |
| 7413087 | Screen deck A screen deck runner assembly (20) suitable for use in a vibratory screening machine characterized by the assembly including a saddle member (5), being configured and 420 dimensioned to removably straddle a screen deck runner (1) and to engage a... | 08/19/2008 |
| 7407039 | Portable hoist lifting frame kit A portable hoist lifting frame kit has a cross beam 12 that can support an electrically, mechanically, hydraulically or pneumatically operated hoist. The cross beam is secured to or supported by cantilever arms 9 which in turn locate into extension arm... | 08/05/2008 |
| 7404490 | Continuous particle separation apparatus The present invention relates to an improved apparatus and method for assembly for a cylindrical split-flow thin separation channel that is capable of continuously separating particles of interest from a suspension flowing through the channel. The apparatus provides... | 07/29/2008 |
| 7405375 | Method for sequentially ordering objects using a single pass delivery point process A method using a single pass sequencer having a transport system for transporting the mail pieces to a transport system having a first carriage system and a second carriage system with a plurality of holders slidable between the first carriage system and the second ... | 07/29/2008 |
| 7404492 | Separation of fibre pulp suspensions containing relatively heavy contaminants A hydrocyclone unit for separating a fibre pulp suspension containing relatively heavy contaminants has an elongate tapering separation chamber, an inlet member that feeds the suspension tangentially into the separation chamber at a base end, so as to form a vortex ... | 07/29/2008 |
| 7398859 | Mast construction for a lift truck A mast includes a base section, an outer telescopic section and an inner telescopic section which are raised and lowered by a pair of main lift cylinders. A fork carriage is slidably mounted to the inner telescopic section and is raised and lowered thereon by a pair... | 07/15/2008 |
| 7398885 | Apparatus for the diversion of objects of different mass An apparatus for selective diversion of objects such as containers, packing and packing units of different mass. The apparatus has a first transport device for the objects and a diversion device for diverting predetermined objects from the first transport device ont... | 07/15/2008 |
| 7389882 | Multi-hardness composite screen frame A self-cleaning screen assembly for a vibratory separator is disclosed. The self-cleaning screen assembly includes a peripheral frame having a top mounting surface to which at least one screen cloth is affixed and a bottom mounting surface to which a flow through su... | 06/24/2008 |
| 7383956 | Woodwaste recycling apparatus and method A woodwaste processing trommel apparatus has a rotating trommel for receiving and separating woodwaste by size. An elongated electrode is mounted within the trommel and has a polarized electric charge thereon for attracting plastic pieces having a static electric ch... | 06/10/2008 |
| 7380671 | Process for size classifying ammonium sulfate crystals which are present in a suspension The invention relates to a process for size classifying ammonium sulfate crystals using a screen, said process comprising feeding a feed suspension to the screen, said feed suspension comprising said ammonium sulfate crystals in an ammonium sulfate solution, size cl... | 06/03/2008 |
| 7378610 | Mail sorting and distributing transfer system A mail sorting and distributing transfer system, which smoothly conveys mail on a mail sorting line having a compound curve whose line is not in a plane, but is three-dimensional, whereby the mail can be reliably transferred to a conveyor basket and conveying power ... | 05/27/2008 |
| 7377366 | Sheave assembly for an elevator system An elevator system includes guide rail mounted machine (16) and a sheave assembly (32) that accommodates a guide rail (38) within a hoistway. The inventive sheave assembly includes individual sheave portions (54) rotatable along a common ... | 05/27/2008 |
| 7367458 | Evaluation of particulate material The invention provides apparatus for determining and recording characteristics of particulate material in a batch of such material comprising a separator chamber having an inlet, means for reading an identifier on a batch of particulate material supplied to the inle... | 05/06/2008 |
| 7367431 | Elevator system A wedge-ribbed belt supports an elevator car by underlooping and engages a drive pulley of a drive mounted at the head of an elevator shaft. The belt has a running surface facing the drive pulley with a plurality of ribs and grooves extending in parallel in a longit... | 05/06/2008 |
| 7367430 | Elevator system A wedge-ribbed belt supports an elevator car in a cantilevered mode and engages a drive pulley of a drive mounted at the head of an elevator shaft. The belt has a running surface facing the drive pulley with a plurality of ribs and grooves extending in parallel in a... | 05/06/2008 |
| 7364019 | Machine-room-less traction sheave elevator The present invention is about a traction sheave elevator, without the machine room, comprising an elevator car that runs on guide rails placed in the shaft and connected to at least one hoisting rope un-coiling on a diverting pulley driven by a traction sheave. The... | 04/29/2008 |
| 7364043 | Fastener inspection system A high-speed fastener inspection system is provided to perform 100 percent inspection of various geometry features and to sort a large number of fasteners at high speed. The inspection system includes a rotary table having an outer periphery, an inner periphery, and... | 04/29/2008 |
| 7360655 | Material handling system having a scoop wheel A material handling system is provided. The material handling system includes a tank defining a reservoir for receiving a solid material, and a wheel including a plurality of circumferentially spaced apart scoops for scooping solid material from the tank and subsequ... | 04/22/2008 |
| 7357259 | Material classifier having a scoop wheel A material classifier for classifying a liquid-solid mixture containing solid material to be separated is provided. The material classifier includes a tank defining a reservoir for receiving the liquid-solid mixture, and a scoop wheel including a plurality of circum... | 04/15/2008 |
| 7353955 | Baggage screening system and method A baggage screening system and method includes providing a plurality of screening subsystems, each including an automated baggage screen device and a feed conveyor for feeding bags to the screen device. A supply conveyor is provided for supplying bags to the screen ... | 04/08/2008 |
| 7347333 | Ultra clean air separator system A system and process for separating high and low density materials by air flow. Mixed solid material is delivered into an entrance of a cascade separation chamber where it is allowed to free fall and tumble over inclined surfaces. A fan forces air through a “close... | 03/25/2008 |
| 7341156 | Systems and methods for sorting, collecting data pertaining to and certifying recyclables at a material recovery facility Systems and methods for collecting data pertaining to glass, plastic and/or paper composition within an input stream that includes recyclable material. The data collected can pertain, for example, to the weight and/or volume of the glass, plastic and/or paper within... | 03/11/2008 |
| 7341154 | Water bath separator A water bath separator includes a tank for receiving a volume of water for forming a water bath having a top water surface and a light material conveyor path extending from the tank such that an upstream end of the light material conveyor path is closely below the t... | 03/11/2008 |
| 7341155 | Systems and methods for processing waste materials Systems and methods for disposing of waste material are disclosed, in which a cross-belt magnet configuration is employed to separate ferromagnetic substances from waste material. For some embodiments, the system includes a first conveyor belt, a magnet, and a secon... | 03/11/2008 |
| 7337880 | Elevator car with lowerable roof An elevator car has a lowerable car roof portion serving in the lowered state as a maintenance platform. The lowerable car roof portion is stabilized in the lowered position against movements in a horizontal plane by at least one mechanical device engaging the car r... | 03/04/2008 |
| 7335847 | Method and apparatus for foreign-body separation from a material flow Method and apparatus for the separation of foreign bodies from a material flow, in particular a tobacco stream. Method is characterized in that at least a portion of the material from the material flow is conveyed into the area of a foreign-body detection device in ... | 02/26/2008 |
| 7331470 | Magnetic rake with release mechanism A magnetic raking device that agitates a ground surface and uses magnetic attraction for collecting ferro-metallic debris, such as nails and screws, at construction jobsites and other locations, includes a release mechanism that temporarily eliminates magnetic attra... | 02/19/2008 |
| 7328805 | Method and system for beneficiating gasification slag The present invention provides a method of beneficiating slag, including mixing the slag with water to form a slurry. The slurry is screened through a first screen to remove a first portion of material and then screened through a second screen to remove a second por... | 02/12/2008 |
| 7328807 | Method and device for classifying fine particles The present invention provides a method for classifying fine particles, the method comprising: introducing a fine particle dispersion in which fine particles are dispersed in a liquid medium into an inlet of a microchannel having the inlet and a recovery portion; an... | 02/12/2008 |
