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| Number | Title | Issue Date |
| 7040319 | Method and apparatus for monitoring oxygen partial pressure in air masks Method and apparatus are disclosed for monitoring an oxygen partial pressure in an air mask and providing a tactile warning to the user. The oxygen partial pressure in the air mask is detected using an electrochemical sensor, the output signal from which is provided... | 05/09/2006 |
| 6499930 | Grain bin unloading system An unloading system for a grain bin. The unloading system includes a sweep conveyor for sweeping grain from the interior of the grain bin to a well in the floor of the grain bin. The sweep conveyor includes an elongated frame, a first sprocket at one end ... | 12/31/2002 |
| 6488100 | Fluff roll for aeration core processing machine A core destroying machine utilizes a single processing rotor cooperable with an arcuate screen member to disintegrate aeration cores therebetween. The arcuate screen member is configured to discharge thatch from the single processing rotor in a generally ... | 12/03/2002 |
| 6295728 | Printed circuit board assembly manufacturing system A system for manufacturing a print board assembly, which is implemented in a system having a computer for storing parts insertion instruction diagrams and displaying parts insertion instructions, and a soldering unit for soldering a printed circuit board,... | 10/02/2001 |
| 5984081 | Continuous unloader A continuous unloader includes upper sprockets, lower sprockets located below the upper sprockets, and front sprockets located in front of the lower sprockets. An endless bucket conveyer is operatively taken on the upper, lower and front sprockets. A supp... | 11/16/1999 |
| 5816336 | Apparatus and method for destroying wet/dry aeration cores An aeration machine is provided with a split tine assembly having a movable spoon portion that disengages from the tine to discharge a wet core therefrom. The movement of the spoon portion is controlled by a cam mechanism that controls the point of discha... | 10/06/1998 |
| 5199549 | Scraper conveyor for loose bulk material In this scraper conveyor for loose bulk material the paddle-shaped conveyor elements are supported and guided in each case by means of supporting rollers of roller guiding arrangements with upper and lower bearing surfaces in the region of at least two lo... | 04/06/1993 |
| 5187097 | Composting system and composting method The disclosure is directed to a large composting system as well as to a new composting method for the automatic production of compost. A mobile layer rearranging unit includes a conveyor system which is changeable with respect to length can be remote-cont... | 02/16/1993 |
| 5184873 | Guides for mineral winning machines A plough guide which is composed of guide sections mounted on the working face side of the runs of channelling of a scraper chain conveyor. Toggle connections are provided on the abutting ends of the plough guide sections. Compartments accommodating the t... | 02/09/1993 |
| 5171065 | Mineral mining installation with chain-tensioning system A plough box containing a chain wheel driving a chain to propel a chain used to move a plough is mounted for displacement alongside a machine frame at one end of a scraper-chain conveyor. To adjust the tension in the chain a motor is operated to drive a s... | 12/15/1992 |
| 5167437 | Mechanisms for drawing a chain into or through a channel of a chain guide A retraction mechanism for drawing a plough drive chain into a chain channel of a coal plough guide built onto the side of a scraper chain conveyor comprises a retraction slide which can be drawn through the chain channel and guided. The plough chain is c... | 12/01/1992 |
| 5141058 | Rock picking machine An improvement in a rock picking machine having a frame with ground wheels supporting the frame, a table with a grate over which rocks are moved and discharged into a bucket rearwardly pivotally mounted on the frame, and a conveyer forwardly pivotally mou... | 08/25/1992 |
| 5088872 | Automatic equipment for collecting and setting up chairs Automatic collection and set up equipment for chairs, characterized by the fact that it performs automatically all the jobs required in collecting and setting up chairs; markedly reduces the man-hours required to prepare a conference room; and it has an a... | 02/18/1992 |
| 5072826 | Chain conveyor for miner A chain conveyor for a miner in which the chain adjacent the drive sprocket is guided and supported by channels in a casting such that tension in the chain is reacted by the casting and separated from the driving force applied to the chain by the drive sp... | 12/17/1991 |
| 5033604 | Connections between the pans of scraper-chain conveyors The pans of a scraper-chain conveyor have a plough guide at one side. The pans are connected together at said one side with the aid of coupling pieces engaged in pockets in the side walls of the pans. Each coupling piece is pivotably fitted to a plate-lik... | 07/23/1991 |
| 5000306 | Chain conveyor for loading devices and/or conveying devices In a chain conveyor (6) for loading devices and/or conveying devices, in which engaging pieces (10) are swivelably linked to a chain (9), noting that the engaging pieces (10) are linked to the chains approximately at their longitudinal center and the chai... | 03/19/1991 |
| 4919252 | Chain conveyor for miner A chain conveyor for a miner in which the chain adjacent the drive sprocket is guided and supported by channels in a casting such that tension in the chain is reacted by the casting and separated from the driving force applied to the chain by the drive sp... | 04/24/1990 |
| 4899868 | Conveyor for a crop harvester There is disclosed a flexible rubber belt having molded lugs on the bottom surface and at least one row of molded cleats on the top surface. A plurality of these belts are transversely spaced apart to form a conveying assembly. The conveying assembly is u... | 02/13/1990 |
| 4762220 | Side scraper for a heap of loose material The invention relates to a side scraper which serves for the discharge of loose material from a heap of loose material and in which the free space between the surface of the heap to be cleared and the upper face of the scraper scoops is covered by a suppo... | 08/09/1988 |
| 4616969 | Emptying device for bulk material An emptying device for bulk material in cargo or storage rooms (2) comprises a first horizontal conveyor (3) which may be raised and lowered along one side of the room and move bulk material in the direction of a lifting conveyor (4). A further horizontal... | 10/14/1986 |
| 4614238 | Arrangement for excavating bulk material from a track bed An arrangement for excavating bulk material from a track bed and for conveying the excavated bulk material, which comprises an endless driven excavating and conveying chain vertically adjustably mounted on a frame of a track working machine, and a guide w... | 09/30/1986 |
| 4588071 | Chain conveyor with diverging interleaved scrapers A load conveyor for a cutting machine comprises two outer, endless chains, and an endless further chain positioned between the two outer chains. Each of the chains carries scrapers. All of the chains are driven, via a common drive drum, by a drive station... | 05/13/1986 |
| 4548315 | Tethered vehicle for moving bulk material A tracked vehicle is tethered so that as it skids on a pile of bulk material, the cleated tracks transfer the material toward the tethered end. The tethering rope hitch point on the vehicle is translatable laterally to effect controlled sideward skiding f... | 10/22/1985 |
| 4530174 | Drive for elevating mechanism The elevating mechanism for a scraper is driven directly and without any supplementary inertia mechanism or speed reducing mechanism by a hydraulic motor of a type having concentrically mounted rotating and stationary members, and with substantial numbers... | 07/23/1985 |
| 4516898 | Devices for extracting solid materials in bulk in the finely divided state, from the bottom of a silo The invention relates to a device for completely evacuating a silo containing finely divided material in bulk. A mobile box element passes over the floor of the silo, its face corresponding to the direction of advance being open and the horizontal base fo... | 05/14/1985 |
| 4505376 | Rock loading apparatus Rock loading apparatus including a frame portion, a rock collecting portion, a rock storing portion and a rock dispensing portion; the frame portion including a wheeled carriage section and an operator's station; the rock collecting portion including a fi... | 03/19/1985 |
| 4430812 | Endless belt dredger A dredging apparatus comprising a floating device and a frame suspended adjustably therein. The frame supports reversing wheels 1,2 for an endless conveying member 3 provided with blades 4 for loosening and feeding upwards the soil material. The apparatus... | 02/14/1984 |
| 4396330 | Hay bale retriever Apparatus for retrieving round hay bales includes a frame, an elongated, rigid and generally U-shaped pan supported on said frame and a generally U-shaped bail. A pair of carriages are slidably supported on the pan and the legs of the bail are pivoted to ... | 08/02/1983 |
| 4369877 | Stockpile reclaiming apparatus The invention consists of a stockpile reclaiming apparatus for discharging bulk material from a bed. The apparatus comprises a bridge which extends over the width of the stockpile, a support frame work, which is mounted from the bridge and a discharging m... | 01/25/1983 |
| 4304089 | Pickup of a farm machine A crop pickup mechanism for a crop harvesting farm machine having an endless driven conveyor between laterally spaced rigid side members of a frame. The side members have connected thereto a forward shaft and a rear shaft mounted transversely of the frame... | 12/08/1981 |
| 4277105 | Conveyor system for a continuous mining machine A conveyor gathering systems suitable for use with a continuous narrow seam mining machine is disclosed. The system is a single continuous conveyor extending from the auger or cutting head to the rear or discharge end of the machine and is particularly us... | 07/07/1981 |
| 4248337 | Equipment for handling bulk material An endless scraper chain carried by a bridge is provided with spaced scraper flights. The scraper chain is driven so as to move its lower course toward one end to thereby move bulk material to a roller bed extending under that one end. The roller bed is c... | 02/03/1981 |
| 4120408 | Bridge scraper A bridge scraper is mounted on a main frame for vertical pivotal movement between a raised inoperative position and an operative position, where the bridge extends generally horizontally and is in wheeled engagement with an outer track of a dump, a scrape... | 10/17/1978 |
| 4111296 | Rock conveyors This invention is conerned with conveyors using reciprocating flights to convey material along the length of the conveyor. The conveyor consists essentially of a bed of articulated plates, a track constraining a chain adjacent a first longitudinal edge of... | 09/05/1978 |
| 4074801 | Bulk material reclaiming apparatus An apparatus for use in reclaiming bulk material such as bean meal or the like from a pile of such material. A self-propelled wheeled vehicle is equipped with an elongated boom. An endless belt-like member is movably positioned along the length of the boo... | 02/21/1978 |
| 4053997 | Scraper elevator with lower drive sprockets An elevator mechanism for an elevating scraper in which the sprockets which drive the elevator chains are located immediately adjacent the ground in the loading position.... | 10/18/1977 |
| 4038764 | Shearing excavator A shearing excavator including a unique blade assembly for removing earth in successive layers from a substantially upright face. The successive earth layers are removed by pulling a blade assembly along the full length of the face. The blade assembly is ... | 08/02/1977 |
| 4037334 | Drive means for an elevating scraper elevator An elevating scraper elevator includes a main frame having drive and idler sprockets mounted at its opposite ends and an endless conveyor passing about the frame and meshed with the drive and idler sprockets. The drive sprockets are fixed to opposite end ... | 07/26/1977 |
| 4033449 | Apparatus for handling bulk materials Bulk handling apparatus which includes an elevator carried by a vertical support arm movable about its axis and horizontally, the arm itself mounted on a lifting mechanism, a discharge device for elevated material, and a guide device on the arm on the sam... | 07/05/1977 |
| 3998344 | Bale wagons A mobile bale wagon has a pickup and throwing mechanism mounted on the forward end of the wagon and adapted to pick up bales lying on the ground and throw the bales into the wagon as the wagon moves in a forward direction. The pickup and throwing mechanis... | 12/21/1976 |
