Strike-off beam and spreader plow assembly for placer/spreader
US7458748B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2007 |
| Grant date | Dec 2, 2008 |
| Priority date | — |
| Expiry date | Oct 19, 2027 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C2301/18
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In combination with a placers/spreader having a frame including at least two side bolsters standing parallel to the subgrade path and at least two cross beams spanning the subgrade path forming a conveyor supporting structure. A rail system is attached spanning the frame, and has a roll in/roll out conveyor with a cantilevered support at one of the side bolsters and a support for attachment to and support from the rail system. The conveyor moves in traversing motion across the frame to distribute concrete. The improvement comprises a strike off beam and spreader plow assembly for trailing attachment to the frame of a placer/spreader. We thus disclose a strike off beam with spreader plow assembly which can be removably attached to either side of a placer/spreader to avoid the necessity of relocating the receiving conveyor when the location of the access road changes from one side to the other or direction of spreading changes. We additionally disclose a method of operation the strike off beam from a placer/spreader to prevent the accumulation of excess concrete the path of the following paver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.