Dump box
US7331621B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 12, 2004 |
| Grant date | Feb 19, 2008 |
| Priority date | — |
| Expiry date | Dec 25, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65F2240/118
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A dump box including a pair of opposing side walls joined to a bottom and a back; and a cable, including front ties, at least one front connector, at least one front cable, each front tie being sized and configured to selectively secure to the connector, the front cable being joined to the connector, the connector and front tie being secured when the front cable is taut and the connector and front tie being disengaged when the front cable is slack and a method of lowering material from an elevated location, including the steps of raising a dump box to an elevated location using cable joined to a crane; lowering the dump box onto the elevate location; placing material into the dump box; moving a connector to a front tie of the dump box; applying tension to the cable joining the dump box to the crane to secure the connector and front tie; raising the dump box off the elevated location; lowering the dump box onto a dumping location thereby releasing the connector from the front tie; and partially raising the dump box to pour out the contents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.