Triangular truss concrete screed having a blade extension bracket
US4375351A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 15, 1981 |
| Grant date | Mar 1, 1983 |
| Priority date | — |
| Expiry date | May 15, 2001 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04G21/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A screed includes a triangular truss frame having first and second ends and a top support member forming the apex of the triangular truss. Front and rear screed blades are coupled in a spaced apart relationship to the lower portion of the front and rear of the frame. The screed includes a detachable screed blade extension bracket which is coupled to the top support member and to the front and rear screed blades. The detachable screed blade extension bracket includes a bracket frame, front and rear blade extension elements which are coupled to the bracket frame and aligned respectively with the front and rear screed blades for extending the effective length of the blade by a predetermined, desired amount. The detachable end bracket extends the effective length of the front and rear screed blades without extending the length of the top support member or the triangular truss frame of the screed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.