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...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7578562 | Grain hopper A hopper for transferring granular materials has a unique composite shape which enables accommodation of the safety guard of an auger and access about a back of the hopper. A wedge-shaped base permits pivoting of the hopper to adjust to the angle of the auger used t... | 08/25/2009 |
| 7488042 | Surface sweeping machine with a dump door and chute actuating mechanism A dump hopper for a road sweeper includes a dump door, a debris guide chute, and an actuating mechanism for pivoting the dump door and debris chute between travel and dumping positions. The dump door is sandwiched between a hopper and the guide chute in the travel p... | 02/10/2009 |
| 7399038 | Mortar buggy with stake bed assembly A mortar buggy with stake bed assembly provides a removable flat heavy duty base platform and a rear panel that can be fitted onto the chassis of an existing mortar buggy or similar conveyance in place of a hopper. The stake bed assembly provides removable front and... | 07/15/2008 |
| 7350872 | Gravity discharge grain wagon having an adjustable discharge chute assembly A wheel supported grain wagon includes a container with sloping side walls extending to an incline bottom wall, and a gravity discharge opening is formed within one of the side walls adjacent the bottom wall. A door panel is supported by tracks for movement between ... | 04/01/2008 |
| 7216919 | Vehicle-mounted covered sander apparatus A vehicle-mounted, covered container apparatus includes a container member, a telescopic collapsible cover assembly, and container-to-cover attachment means connected between the container member and the telescopic collapsible cover assembly. The container member ca... | 05/15/2007 |
| 7201453 | Mortar buggy with stake bed assembly A mortar buggy with stake bed assembly provides a removable flat heavy duty base platform and a rear panel that can be fitted onto the chassis of an existing mortar buggy or similar conveyance in place of a hopper. The stake bed assembly provides removable front and... | 04/10/2007 |
| 7185953 | Surface sweeping machine with a dump door and chute actuating mechanism A dump hopper for a road sweeper includes a dump door, a debris guide chute, and an actuating mechanism for pivoting the dump door and debris chute between travel and dumping positions. The dump door is sandwiched between a hopper and the guide chute in the travel p... | 03/06/2007 |
| 7037034 | Safety door system and method for a hopper body Accordingly there is disclosed a safety door system, comprising a hopper body containing a powered implement powered by a hydraulic control system, for dispensing liquid or granular materials or for agitating the liquid or granular materials; a safety door for cover... | 05/02/2006 |
| 7008001 | Automatic tarper A tarping system that automatically covers and prevents trash from spilling from a trash opening in the rear vertical panel of a CRC. The tarping system automatically draws a tarp from the lower edges of the trash opening up over the opening, effectively closing the... | 03/07/2006 |
| 6932433 | Hopper closure assembly and method of using same A closure mechanism for a hopper bottom trailer which utilizes potential and kinetic energy of granular material in the hopper. The hopper closure assembly may have an angled member upon a gate that translates kinetic energy for moving granular material into longitu... | 08/23/2005 |
| 6557944 | Dump truck apparatus with removable hopper An apparatus capable of adapting a vehicle for use in either of a dump truck mode or a spreader truck mode includes a dump body unit and a removable hopper. The dump body unit has a main frame pivotally interconnected with a dump body. The main frame atta... | 05/06/2003 |
| 6520590 | Elastically deformable truck bed hopper for mining dump truck of frontal wall, protective blinder and bottom of curved surfaces A truck bed hopper of a mining dump truck that is capable of elastic deformation when it is subject to the loading or unloading of material, built preferably of structural or of wear and tear steel, where the general structure of the bed hopper is curved.... | 02/18/2003 |
| 6019432 | System for deploying bulk containers in cargo transport vehicles A system for a freight vehicle having a cargo space convertible for handling bulk cargo as well as piece goods, for deploying bulk cargo containers, includes a cable winding shaft positioned adjacent one end wall of the vehicle, with a cable winding reel ... | 02/01/2000 |
| 5971494 | Dual use trailer with hopper bottom The hopper bottom trailer has a main frame supported by wheels, a hopper with hopper walls that extend downwardly to a discharge opening and a discharge door, and two side walls. An upper side frame member is attached to each side wall. A front upper fram... | 10/26/1999 |
| 5782524 | Curved wall trailer construction A trailer construction includes first and second spaced apart trailer side walls. A bottom wall is provided between the side walls and includes a forward sloping portion, a rear sloping portion and an intermediate portion therebetween. The forward and rea... | 07/21/1998 |
| 5599071 | Multi-compartmentalized dumping body with movable floor A multiple compartment storage body for a refuse collection vehicle includes a floor, a roof, a plurality of walls and a partition. The plurality of walls extend between the floor and the roof and include a front wall, a rear wall, and side walls between ... | 02/04/1997 |
| 5326156 | Trailer construction An improved tractor-trailer assembly utilizes a trailer bottom wall having a drop center portion which is located rearwardly of the longitudinal midpoint of the trailer. The bottom wall of the cargo container is attached to and suspended from the upper ed... | 07/05/1994 |
| 5316430 | Material collecting and hauling apparatus A waste hauling apparatus including a truck body divided into two separate compartments by a movable dividing wall. A bucket assembly having separate side-by-side bins is operative to transfer trash material loaded into the bucket by an operator at ground... | 05/31/1994 |
| 5183293 | Waste management system A waste management system for handling both solid and human waste consisting of a trailer with a hitch arrangement for connection to a towing vehicle. The trailer preferably includes tandem axles that support a trailer frame whereto a trash collecting bin... | 02/02/1993 |
| 5058957 | Recyclable waste sorter collector A container for sorting and collecting of recoverable waste products has fixed partitions providing discrete compartments for those products. Each compartment incorporates its own independently sloped floor. At the bottom of the slope of each compartment ... | 10/22/1991 |
| 5039271 | Apparatus for handling trash Trash handling apparatus that includes a hopper mounted to tilt to a dump position off a trailer, a friction wheel to engage a wheel of the trailer and to be turned by forward movement of the trailer, reeling in a cable of a drum system so as to tilt the ... | 08/13/1991 |
| 4946214 | Container collapsible to form a flat platform structure A collapsible container has a top frame and bottom frame with folding walls having predetermined fold lines therein. The container has a closed position which is a flat platform configuration. In this configuration the walls are folded within the platform... | 08/07/1990 |
| 4941581 | Convertible container and vehicle A convertible container has side walls, a rear door, front end walls sloping downwardly in the direction of the rear door, a floor commencing at the rear door, and a gated hopper lying between the floor and the front end wall. A movably mounted sheet has ... | 07/17/1990 |
| 4861215 | Bulk storage bin with pneumatically assisted discharge A bin for storing and handling bulk material includes a fill opening through which material is introduced into the bin for storage and a discharge opening in a bottom portion of the bin through which material stored in the bin is discharged. The bin inclu... | 08/29/1989 |
| 4854801 | Bulk storage bin with pneumatically assisted discharge A bin for storing and handling bulk material includes a fill opening through which material is introduced into the bin for storage and a discharge opening in a bottom portion of the bin through which material stored in the bin is discharged. The bin inclu... | 08/08/1989 |
| 4722655 | Bulk storage bin for freight vehicle or other storage facility A bin for storing and handling bulk material includes a fill opening through which material is introduced into the bin for storage and a discharge opening in a bottom portion of the bin through which material stored in the bin is discharged. The bin is er... | 02/02/1988 |
| 4646942 | Multiway gravity box and door assembly A multiway gravity box and door assembly is capable of selectively storing, transporting and/or dispensing different particulate solid materials. The gravity box has a partition wall to separate the box into two separate compartments each of which communi... | 03/03/1987 |
| 4643475 | Flexible bulk container A flexible bulk container is disclosed, integral with a wheeled vehicle, that has an open bulk mode and a closed flat bed mode. The container can be used one way full and the return journal empty in the flat bed mode with other cargo on the flat bed. The ... | 02/17/1987 |
| 4623197 | Sloped floor dump trailer A sloped floor trailer which incorporates drain ports which are opened during trailer loading and which are sealed during trailer transportation, in order to retain the liquid. In addition to the foregoing features, I provide apparatus for heating the tra... | 11/18/1986 |
| 4606570 | Flexible bulk container A flexible bulk container is disclosed, integral with a wheeled vehicle, that has an open bulk mode and a closed flat bed mode. The container can be used one way full and the return journey empty in the flat bed mode with other cargo on the flat bed. The ... | 08/19/1986 |
| 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 |
| 4557400 | Convertible cargo carrier for trailers and the like A carrier unit adapted to be converted into a bulk material carrier including a container having a floor and two parallel substantially vertical walls. The floor has at least one floor panel movable between a storage position and an operative position and... | 12/10/1985 |
| 4534596 | Freight vehicle with a convertible cargo space A freight vehicle has a cargo space convertible from that suitable for handling piece goods to that suitable for dry bulk granular material. A conventional cargo space for piece goods has openings in the roof and floor for filling and discharging bulk mat... | 08/13/1985 |
| 4523690 | Door operating mechanism for gravity type farm wagon The improvement in a gravity box farm wagon of a door opening mechanism for side opening discharge door of the farm wagon includes a hand wheel operated spool with cable wrapped around the spool and connected at its opposite ends to the door and a channel... | 06/18/1985 |
| 4394105 | Tipping trailer This invention provides a tipping trailer where the trailer frame is pivotably connected to a hopper for the trailer. Upon release of a lock the hopper may tilt on its pivot with the frame such that a portion thereof makes contact with the surface below a... | 07/19/1983 |
| 4368673 | Distribution means for partition sheet assembly A partition sheet structure for covered hopper railway cars providing for even fill of commodity between compartments. The structure facilitates the filling operation, and prevents buckling caused by the uneven fills of the cars, while allowing the partit... | 01/18/1983 |
| 4311408 | Side delivery attachment for spreader truck A side delivery attachment for a spreader truck which converts it from a spreader to an apparatus for applying crushed rock in measured amounts accurately to a desired strip of the shoulder of a road.... | 01/19/1982 |
| 4241947 | Vehicle with transformable loading area A vehicle for the selective transport of a piece load or a bulk load has a container including a bottom constituting, at least in part, a funnel having a discharge opening, a top closure arranged above the bottom and collapsible side walls attached to the... | 12/30/1980 |
| 4230360 | Bulk material bed A trailer for receiving and hauling bulk material. The trailer includes an elongated bed with an external skeletal frame. Along with the skeletal frame, two truss members are provided on opposite longitudinal sides of the bed. Each truss includes downward... | 10/28/1980 |
| 4092051 | Multi-purpose freight vehicle This application discloses a multi-purpose freight vehicle, such as a roadway trailer, which, in one condition, presents a clear cargo space with a continuous floor for hauling packaged goods and which, in another condition, provides one or more container... | 05/30/1978 |
