Concrete dispensing boom for concrete pumps
US9512628B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2015 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | Apr 2, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8807
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A concrete dispensing boom for stationary and mobile concrete pumps has a plurality of boom arms, connected to one another at joints, and a concrete conveying line consisting of a plurality of pipe segments preferably connected to one another in an articulated manner via pipe bends and rotary couplings. Said pipe segments run along the individual boom arms and are attached to these boom arms. At least one of the boom arms has a hollow chamber profile which has at least two hollow chambers separated from one another by a separating wall, at least one of which chambers is a closed chamber and one is open at the periphery. The pipe segment allocated to the boom arm concerned is disposed on the opening side outside, partially inside or inside the open hollow chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.