Method and apparatus for applying mortar or concrete
US4492478A · kind A · utility
10Cited by
10References
11Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 29, 1982 |
| Grant date | Jan 8, 1985 |
| Priority date | — |
| Expiry date | Apr 29, 2002 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21D11/105
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
One of ingredients of green concrete are supplied to a rotary disc through a central tube by a pump or low pressure air and the other ingredient is supplied to the rotary disc from a hopper by a screw conveyor. These ingredients are mixed together on a rotary disc and then projected by centrifugal force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.