Spreader pan for a gravity discharge trailer box
US6189976A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 21, 1999 |
| Grant date | Feb 20, 2001 |
| Priority date | — |
| Expiry date | Jul 21, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60P1/26
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
This invention comprises a laterally extending spreader pan having a short longitudinal dimension of about six inches, pivotally mounted on a lateral shaft secured to a trailer or truck box adjacent to the rear edge of the box floor. The spreader pan is pivotable between an operating position where the pan is substantially co-planar with the floor of the truck or trailer box and a non-operating position where the spreader pan is pivoted downward to a position that is substantially normal to the box floor and which does not extend beyond the rear edge of the truck or trailer box. An operating lever is provided on the lateral shaft with the free end of the lever connected to the plunger of a pneumatic cylinder controlled from the cab of the truck. When the plunger is extended the shaft and spreader pan is rotated or pivoted upwardly into its operating position, co-planar with the floor of the box. When the plunger is retracted the shaft and spreader pan is rotated downwardly into its out of the way, non-operating position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.