Highway expansion joint
US4319855A · kind A · utility
7Cited by
10References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1979 |
| Grant date | Mar 16, 1982 |
| Priority date | — |
| Expiry date | Mar 29, 1999 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01D19/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An elongated plate of elastomeric material is provided with anchoring means along its side edges for fixedly connecting the same to the sections of the road bed on opposite sides of the gap. Spring means are embedded within the plate transverse to the longitudinal axis and secured at its ends to the respective anchoring means so as to be expanded and/or contracted corresponding to the movement of the road section. The spring means preferably comprise helically wound coils spaced in parallel to each other, transverse to the longitudinal direction of the plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.