Chain driven roller system for use in concrete pipe manufacturing
US6017208A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 28, 1997 |
| Grant date | Jan 25, 2000 |
| Priority date | — |
| Expiry date | May 28, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB28B21/24
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A concrete pipe manufacturing machine movable in a mold for receiving a concrete mixture to form a tubular concrete wall includes a troweling cylinder assembly having a head plate. A vertically movable and rotatable drive shaft is fixed to the head plate for moving the troweling cylinder assembly in a vertical direction and in one rotational direction. A series of roller assemblies are rotatably mounted on the head plate and are adapted to be rotated by frictional contact with the concrete mixture in a direction counter to the one rotational direction of the drive shaft. A drive arrangement interconnects and collectively drives the roller assemblies together for preventing jamming of the roller assemblies due to material in the concrete mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.