Wide expansion joint system
US5197250A · kind A · utility
25Cited by
9References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 12, 1992 |
| Grant date | Mar 30, 1993 |
| Priority date | — |
| Expiry date | May 12, 2012 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C11/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An expansion joint sytem (10) spans a slot (12) of adjacent concrete slabs (14, 16). The system includes a boxed out area (22) adjacent the slot. A plate member (32) extends across the slot. A preformed resilient pad (42) is positioned above the plate member. Nosings (64) of resilient material are bonded to the pad and to the surfaces bounding the boxed out area. The pad has a cross sectional configuration that achieves enhanced bonding to the nosings, greater flexibility and resistance to failure in cold weather, and greater elongation without failure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.