The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
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| Number | Title | Issue Date |
| 7114909 | Trailer-tilting, load-discharge apparatus and method A trailer unloading system anchors one or more trailers to a deck, with, or without tractor attached. The sides of the trailers are free to pivot from a top, longitudinal, pivot axis once unlatched from the edge of the trailer floor. The deck tilts the trailers side... | 10/03/2006 |
| 6558111 | System and method for unloading bulk powder from large bulk containers The present invention is directed to a system and a method to unload bulk powders from large bulk containers. The system and method are particularly useful for unloading bulk cohesive powders.... | 05/06/2003 |
| 5360308 | Vehicle dumping apparatus with pulsating platform and movable hinge A truck platform is elevated at one end and then moved rearwardly by pulsation cylinders which slowly accelerate and then rapidly decelerate the platform and truck. The abrupt deceleration causes the material in the truck to continue to move rearwardly se... | 11/01/1994 |
| 5006039 | Method of emptying a container A method of lifting and tipping a container off of a supporting surface in order to dump contents therefrom, the container being of the type having a bottom walland upright side walls, the upper extent of which side walls define an opening. The apparatus ... | 04/09/1991 |
| 4999021 | Device for unloading containers For the continuous dosed unloading of bulk piece goods from containers, especially containers whose weight in the loaded state is many times the weight when empty, the device has the following features: (a) a stationary machine frame; (b) a vibrating frame whi... | 03/12/1991 |
| 4948324 | Container emptying apparatus, assembly and method An apparatus for lifting and tipping a container off of a supporting surface in order to dump contents therefrom, the container being of the type having a bottom wall and upright side walls, the upper extent of which side walls define an opening. The appa... | 08/14/1990 |