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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 |
| 8109815 | Combine having a cutting mechanism and a feed mechanism A combine has a cutting mechanism (12) for cutting a crop and a feed mechanism (13) for feeding the cut crop towards a threshing and/or separating rotor (21) which rotates within a housing (20) about an axis disposed generally longitudina... | 02/07/2012 |
| 7223167 | Anti-wind wiper with adjustable extension An anti-wind wiper including an extension adjustably mountable in a desired spaced relation and angular orientation relative to a leading edge of a flight of a front rotor inlet section of a combine, for interaction with the flight during rotation of the rotor, for ... | 05/29/2007 |
| 7186177 | Combine threshing rotor front bearing and inlet section with anti-wind features A threshing front rotor inlet section and front bearing housing shroud assembly for an agricultural combine. The front rotor inlet section includes a center body or plate having a radial outer circumferential periphery and a substantially annular protuberance extend... | 03/06/2007 |
| 7186178 | Combine threshing rotor front bearing and inlet section with anti-wind features A threshing front rotor inlet section and front bearing housing shroud assembly for an agricultural combine. The front rotor inlet section includes a center body or plate having a radial outer circumferential periphery and a substantially annular protuberance extend... | 03/06/2007 |
| 7175520 | Cab arrangement for harvesting combine A cab arrangement for a harvesting combine includes a harvesting combine having a body and a cab spaced-apart from the body. A platform is positioned between the cab and the body. The cab, the boy, and the platform define a passageway to allow an operator to visuall... | 02/13/2007 |
| 7166025 | Combine threshing rotor front bearing and inlet section with anti-wind features A threshing front rotor inlet section and front bearing housing shroud assembly for an agricultural combine. The front rotor inlet section includes a center body or plate having a radial outer circumferential periphery and a substantially annular protuberance extend... | 01/23/2007 |
| 7146790 | Combine harvesters An anti-wrapping device is described for preventing crop from being wrapped about the central shaft of a reel rotatably supported on side arms of a header of a combine. The device comprises an annular cover plate for securing to the axial end of the reel to prevent ... | 12/12/2006 |
| 7140961 | Combine harvester A combine harvester with a rotor housing which is positioned in a lengthwise direction and with an inclined angle towards the horizontal line inside of the combine. To arrange the rotor housing in a favorable way inside of the combine harvester, it is suggested to u... | 11/28/2006 |
| 7070498 | Frusto-conical drum infeed and threshing region for a combine rotor A rotor, in an agricultural harvester crop processing unit, comprising a drum to which crop processing elements for an infeed section and a threshing section are affixed. The drum comprises a rearward cylindrical portion and a forwardly extending frusto-conical port... | 07/04/2006 |
| 7059960 | Composite threshing element for a combine rotor A composite threshing element, for a rotor in an agricultural harvester crop processing unit, comprising a hollow support structure with at least one outwardly extending crop engaging portion, and a forwardly extending infeed element attachment feature. The rotor co... | 06/13/2006 |
| 6908378 | Threshing rotor inlet flight extension The extension has an elongate blade shape and is positionable in radially outwardly extending relation along a leading edge of a rotor inlet flight, the blade having a leading edge located forwardly of the leading edge of the flight so as to rotate in advance thereo... | 06/21/2005 |
| 6869356 | Cleaning chamber and method for a sugarcane chopper harvester A sugarcane chopper harvester is equipped with a cleaning chamber for cleaning extraneous leafy matter and dirt from harvested and chopped cane delivered to the chamber. Located within the chamber is an axial flow fan for effecting an upward flow of air including a ... | 03/22/2005 |
| 6780102 | Transfer mechanism for feeding harvested crop to a separation unit A combine harvester is provided with a feeder housing; A separation unit including a rotor driven by a shaft is arranged in a rotor housing. The separation unit a feed end and a discharge end; and a transfer mechanism located in the region of the intersection of the... | 08/24/2004 |
| 6746326 | Hydraulic clutch A fluid operated actuator includes a shaft and a housing. The shaft is at least partially mounted in the housing for relative rotation between the shaft and the housing. The shaft includes a substantially central bore in which a first piston is mounted. The shaft al... | 06/08/2004 |
| 6719626 | Axial flow combine and impeller for rotor thereof An axial flow combine harvester having a combination impeller and rotor. The rotor has a front end and is rotatable in a specified rotational direction during normal operation of the combine harvester. The impeller comprises a front, a rear, a mount for fitting the ... | 04/13/2004 |
| 6688970 | Combine threshing rotor front bearing and inlet section with anti-wind geometry A threshing rotor and front bearing housing shroud assembly for an agricultural combine having improved anti-wind characteristics, particularly with regard to long, wet straw. The invention resides in a front rotor inlet or infeed section having at least ... | 02/10/2004 |
| 6679773 | Working devices contained in a rotor housing of an agricultural harvester A self-propelled harvester having a drivable separating rotor rotatably mounted in a rotor housing with a bearing in an end wall covering an inlet opening of the rotor housing at a front end of the separating rotor, further comprising a lower edge transve... | 01/20/2004 |
| 6296566 | Infeed impeller for a rotary combine An infeed assembly for a rotary combine has an impeller for directing crop materials outwardly and rearwardly. The impeller is arranged on the infeed section of the rotor and includes impeller blades that redirect the incoming mat-like crop materials into... | 10/02/2001 |
| 6196916 | Combine crop conveyor with improved feed drum chain guides A combine chain and slat crop conveyor includes a plurality of feed drum chain guides. Each chain guide is a generally cylindrical ring which encircles and is attached to the conveyor feed drum and is shaped as a "W" in cross section. Each chain guide inc... | 03/06/2001 |
| 6050894 | Feeding crop to the rotor of an axial flow combine harvester An impeller blade for the rotor of an axial flow combine harvester is shaped such that an outer blade portion has a shape of the blade portion defining an inclined edge which joins a forward blade edge lying in a radial plane of the rotor at a first posit... | 04/18/2000 |
| 6036598 | Crop processing element for a rotary combine The crop engaging element of the present invention is a hollow structure having a smooth curved convex top portion which terminates in a concave trough before extending into a radially extending lip. The hollow structure is provided with sidewalls and a r... | 03/14/2000 |
| 5980383 | Attachment for an auger of a harvesting machine An attachment for an auger of a harvesting machine reduces or essentially eliminates residue build-up on the auger of the harvesting machine. The attachment includes a paddle, which is adapted to be secured to the auger between the flighting of the auger,... | 11/09/1999 |
| 5830061 | Combine harvester An automotive combine has a frame adapted to move in a travel direction along the ground, a front housing pivotal on the frame, a cutter on the front housing for cutting standing crop, and a main thresher on the front housing having a front intake and a r... | 11/03/1998 |
| 5772503 | Crop feeding apparatus for rotating concave threshing mechanism A grain combine has a header, a header discharge port, a feederhouse for transporting the cut crops from the header housing into a rotating concave threshing system. The header, discharge port and feederhouse are separated into separate first and second d... | 06/30/1998 |
| 5688170 | Rotary combine having a concentric infeed section and eccentric threshing and separating sections An axial agricultural combine having a single element rotor defining a rotor axis. The rotor is housed in a rotor housing having an infeed section, a threshing section and a separating section. The infeed section of the rotor housing defines a infeed axis... | 11/18/1997 |
| 5556337 | Self-propelling harvester thresher A self-propelling harvester thresher has a cutting and transporting unit, a threshing unit having a threshing basket and a threshing drum, a transferring drum and a separating unit having a separating rotor and a separating housing with a drawing-in openi... | 09/17/1996 |
| 5497605 | Header and feeder for a grain combine A grain combine according to the present invention includes a header having two sickles which extend on opposite sides of the combine for severing crop from a field, and two augers which extend on opposite sides of the combine for moving crop inward to ce... | 03/12/1996 |
| 5464371 | Feeder adapter for mounting a combine header to a feeder housing of a combine A feeder adapter for mounting a header on a feeder housing of a combine, the feeder adapter having a housing with an inlet positionable immediately behind a rear feed draper of the header and an outlet which is of a size and shape to match with a forward ... | 11/07/1995 |
| 5462486 | Drive reversing system for the feeder housing of an combine harvester A reverser system for the feeder chain of a combine harvester comprises a hydraulic motor mounted on a slide and operated by a cylinder to move from a retracted position to a forward operating position. In the operating position the mechanical coupling co... | 10/31/1995 |
| 5454758 | Self-propelling harvester thresher A self-propelling harvester thresher has elements for cutting and transporting a harvested product, threshing unit arranged after the elements and operating in accordance with the principle of radial flow and also including a threshing basket and a thresh... | 10/03/1995 |
| 5387153 | Rotary combine A rotor assembly for a rotary combine having an anti-wrap blade assembly which acts in combination with an impeller blade assembly to direct material outwardly and rearwardly relative to the longitudinal axis of the rotor assembly. The anti-wrap blade ass... | 02/07/1995 |
| 5368522 | Feeder-rotor assembly for combines A rotary combine including a feeder mechanism and a rotor assembly having an impeller assembly arranged at a forward end of a rotor. The feeder mechanism includes a housing which is pivotally connected to the combine about a transverse axis. The feeder me... | 11/29/1994 |
| 5364306 | Notched helical vanes in the feeding section of an axial agricultural combine The feeding section of an axial flow agricultural combine is provided with helical vanes. Each helical vane having an upstream end that is provided with a notch in which crop material is temporarily trapped. The notch is formed by tapering the upstream en... | 11/15/1994 |
| 5346429 | Feeder assembly for a combine A feeder assembly for a combine including a conveyor having a plurality of laterally spaced driving chains entrained about and supported by a pair of for-and-aft spaced lateral supports. An elastomeric assembly is removably fitted about and is adapted for... | 09/13/1994 |
| 5344367 | Infeed plate for an axial agricultural combine An improved infeed plate more evenly distributes harvested crop material as it is transferred from a feederhouse to an axial rotor. Crop on one side of the infeed plate is curled into the bottom of the rotor by a conical section. Crop on the other side of... | 09/06/1994 |
| 5257959 | Door assembly for an axial-flow combine A door assembly for a rotary combine having a crop receiving and generally tubular rotor casing defining an elongated axis, a rotor coaxially disposed within the casing, and a vaned impeller arranged at a forward end of the rotor. The door assembly extend... | 11/02/1993 |
| 5145462 | Infeed assembly for an axial-flow combine An infeed assembly for an axial-flow combine arranged at a forward end of a rotor which is mounted within a casing defining a transition section at a forward end thereof. The transition section has a series of spiral transport vanes on an inner surface th... | 09/08/1992 |
| 5078646 | Self-propelling harvester thresher A self-propelling harvesting thresher comprises threshing means, and a post threshing and separating mechanism, the post threshing and separating mechanism operating in accordance with an axial flow system and including two rotors located near one another... | 01/07/1992 |
| 5045025 | Co-rotational axial flow combine A combine for cutting and threshing grain has an axial flow threshing drum. A feeder head mounts to the forward end of the threshing drum. Impellers on the feeder head push grain into the threshing drum housing and also provide threshing. Rasp bars on the... | 09/03/1991 |
| 4998904 | Harvester thresher A harvester thresher comprises a housing threshing device accommodated in the housing, a plurality of straw shakers located after the threshing device and having a discharge end, threshing and separating device located after the straw shakers, and device ... | 03/12/1991 |
