Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 7326020 | Multi-purpose vessel and method for recovering, storing and/or offloading material in a dredging operation A method of building a levee or an island is disclosed. The method includes dredging material from a surface of a body of water with a dredge assembly mounted to a hull and supporting a hopper with the hull. The hopper is adapted to receive the material. The hopper ... | 02/05/2008 |
| 7008163 | Bulk storage bins and methods and apparatus for unloading same One embodiment provides for a material reclaiming apparatus for use with a bulk storage bin. The bulk storage bin includes a bottom which defines an elongated plurality of outlet openings from the storage bin. The material reclaiming apparatus includes a plurality o... | 03/07/2006 |
| 5741106 | Materials handling system A materials handling system (30) for controlling the gravity discharge of material through a discharge opening (33) onto a conveyor (34) comprises a gate (40) extending across the discharge opening (33) and having a plurality of outlet openings (40.4) the... | 04/21/1998 |
| 5702221 | Materials handling system A materials handling system for controlling the gravity discharge of material through a discharge opening 33 onto a conveyor 34 comprises a gate 40 extending across the discharge opening 33 and having at least one but preferably a plurality of outlet open... | 12/30/1997 |
| 5518353 | Arrangement in an unloading system An arrangement for unloading bulk material (1a) from holds (2a-2e) in a transport vessel (1), comprising a belt conveyor (3a, 3b, 3t) extending in the longitudinal direction of the ship close to the bottom (9) thereof, the belt conveyor supporting incline... | 05/21/1996 |
| 5364218 | Bulk material conveyor unloading system for ships In a preferred embodiment, a system for unloading bulk material from a ship, which system includes: an elevating conveyor having a first, inclined section to raise bulk material from a lower space in the hull of the ship to a point above the deck thereof ... | 11/15/1994 |
| 5259130 | Floating grab installation for the recovery of sand and gravel A floating grab installation for recovery of sand and gravel is disclosed. The installation includes a catamaran-type float or pontoon having a gripper and gripper support thereon. The gripper transfers the sand and gravel to an underwater tank having an ... | 11/09/1993 |
| 5061142 | Device for loading and unloading vehicles and aircraft The present invention relates to an assembly for loading or unloading cargo which comprises a cargo space having a base portion and a loading-unloading apparatus having a supporting structure. A cargo conveyor has an upper part and a lower part, the upper... | 10/29/1991 |
| 4706854 | Particulate material handling Apparatus and method for containing and feeding particulate material tending to pack into a mass from an elongated hopper having opposed sloping walls converging downward and inward towards each other to terminal margins presenting between them an elongat... | 11/17/1987 |
| 4583901 | Gates for self unloading vessels Apparatus for handling particulate material such as is stored in a hopper having an elongated throat opening closed by one or more gates. The gates are mounted at one end thereof from axially aligned rails which are preferably mounted outside the hopper o... | 04/22/1986 |
| 4483655 | Vessel loading method A large cargo vessel is loaded by moving a self-unloading barge alongside and fixing it relative to the vessel. A boom assembly of the barge is slewed into alignment with a hold of the vessel whereupon a shuttle conveyor is extended over the open hold. Bu... | 11/20/1984 |
| 4428504 | Dual-function cargo discharge apparatus In a self-unloading vessel having hoppers with discharge outlets for discharging either lump or pulverulent material onto an unloading conveyor, discharge apparatus includes a wheeled carriage supporting two separate gate assemblies thereon and movable to... | 01/31/1984 |
| 4338058 | Synchronized hopper gate Synchronized hopper gate mechanisms (17) are provided for the hoppers (18) of a bulk cargo vessel (11). Each gate mechanism includes a pair of horizontal closure panels (31, 32) and control means for simultaneously displacing the panels in opposite direct... | 07/06/1982 |
| 4242026 | Self-unloading ship with suspended reclaim scraper A material handling system for continuous reclaiming or unloading of bulk cargo from the "dead flow" regions of a ship hold. An unloading conveyor is positioned in underlying relation to the hold substantially centrally of the transverse dimension of the ... | 12/30/1980 |
| 4191314 | Device for opening and closing cargo pocket bottom outlets for bulk cargo A device for opening and closing bottom outlets of a plurality of cargo pockets arranged in rows, preferably in holds in bulk cargo ships, conveyors being arranged beneath the pockets. A guide arrangement extends longitudinally along the bottom of a row o... | 03/04/1980 |
| 4140229 | Coal cutter vehicle A reclaimer apparatus is positioned in an elongated bulk material containing hopper or cargo hold of the type having opposed side walls which slope downwardly and inwardly toward the hopper bottom, the latter having a series of longitudinally extending di... | 02/20/1979 |
| 4072238 | Self-unloading ship with two tunnel belts and a central reclaimer A self-unloading ship includes two longitudinal tunnels with conveyor belts below two rows of hoppers at the bottom of the holds which extend nearly from one end of the ship to the other for unloading bulk material such as coal, iron ore, gypsum or the li... | 02/07/1978 |
| 4052961 | Apparatus for planting seed oysters An apparatus for uniformly distributing seed oysters over a previously prepared seed bed, comprising a shallow draft vessel having a V-shaped hold, a channel in the lower portion of the hold running substantially the length of the vessel, the sides defini... | 10/11/1977 |
| 4007826 | Dual pressure take-up apparatus and system for dual belt conveyor-elevator A conveyor apparatus for elevating loose bulk material from one level to another, as in self-unloading ships, and more particularly a dual belt conveyor-elevator having a relatively long horizontal feed section, and further including a belt take-up appara... | 02/15/1977 |
| 4004700 | Hopper gate for self-unloading ships A belt feeder gate for use in self-unloading ships of the type in which the hold of the ship is provided with a hoppered bottom including a plurality of hoppers overlying an unloading conveyor belt moving lengthwise of the ship. Each open hopper bottom is... | 01/25/1977 |
| 3990588 | Bulk flow belt feeder gate with interlocked striker plate A bulk flow belt feeder gate for discharging a bulk material such as mineral ore or the like from a ship hold or the like onto an unloading conveyor belt beneath the ship hold, and a cooperating striker plate positioned immediately contiguous the downstre... | 11/09/1976 |
