Removable, collapsible bulkhead assembly
US4786026A · kind A · utility
2Cited by
11References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 11, 1988 |
| Grant date | Nov 22, 1988 |
| Priority date | — |
| Expiry date | Apr 11, 2008 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C19/506
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A collapsible concrete bulkhead is insertable into a framework. The bulkhead has a pivotable divider plate which is located juxtaposition to a bulkhead plate and moves laterally thereof to reside in an offset base portion of the framework. The bulkhead assembly forms separate concrete sections when concrete is poured into the framework and forms a gap when the bulkhead assembly is removed. Optionally, a liner can be inserted adjacent to the bulkhead assembly and the bulkhead assembly removed before full cure of the concrete so that the concrete fills the void left by the bulkhead with the liner separating the concrete sections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.