Slip form having reinforcement accommodating means
US4084928A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 3, 1976 |
| Grant date | Apr 18, 1978 |
| Priority date | — |
| Expiry date | Nov 3, 1996 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C19/506
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An improved barrier forming apparatus and method whereby a barrier is formed continuously over a surface, the barrier having continuous reinforcing rods extending the length of the barrier and having cage reinforced standard supports at predetermined intervals along the length of the barrier. An improved barrier forming assembly is disclosed comprising a concrete forming member having a form cavity extending therethrough; a concrete passing member having a concrete delivery opening for passing concrete or the like to the form cavity; and a positioning assembly comprising a support shaft and a door member pivotally supported at a forward end of the concrete forming member, the barrier being extrudable continuously via the form cavity from a rearward end of the concrete forming member. The door member selectively is positionable to partially seal the form cavity at the forward end of the concrete forming member and has rod clearance channels through which the reinforcing rods pass through the door member into the form cavity when the door member is so positioned to seal the form cavity. The rod clearance channels permit the door member to clearingly pass the reinforcing rods to open …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.