Methods for determining fresh concrete discharge volume and discharge flow rate and system using same
US11224989B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 2, 2019 |
| Grant date | Jan 18, 2022 |
| Priority date | — |
| Expiry date | May 2, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB28C7/024
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
There is described a method for determining a volume of fresh concrete being discharged from a drum during a discharge, the drum being rotatable and having inwardly protruding blades mounted inside the drum which, when the drum is rotated in an unloading direction, force the fresh concrete towards a discharge outlet of the drum. The method generally has discharging a volume of the fresh concrete from the drum by rotating the drum in the unloading direction for a given number of discharge rotations; obtaining discharge flow rate variation data indicative of a discharge flow rate varying as function of discharge rotations; and determining a discharged volume value indicative of the volume of fresh concrete being discharged from the drum of the mixer truck during said discharge based on the given number of discharge rotations and on the discharge flow rate variation data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.