Reclaiming drum having interchangeable rectangular and V-shaped paddles
US10640934B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2017 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | Nov 13, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C23/088
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A paddle for a reclaiming drum may include a block of material configured for attachment to a leading edge of a flighting supporting a cutting bit on the reclaiming drum, and the block of material may assist in breaking up and mixing material removed from a surface by the cutting bit as the reclaiming drum is rotated and moved into the surface. The paddle may include two ear portions protruding from opposite sides of a flat, centrally-located, aft-facing surface of the block of material, each of the ear portions including an inwardly-facing chamfered surface configured to interface with an outwardly-facing, leading edge chamfered surface of the flighting such that a gap is maintained between a flat leading edge surface of the flighting located in between the outwardly-facing chamfered surfaces and the flat, centrally-located, aft-facing surface of the block of material when the block of material is attached to the flighting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.