Control barrier systems
US5836714A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 11, 1996 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | Jun 11, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F7/18
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Portable control barriers for use in sporting or entertainment events having a lightweight housing formed of a resiliently deformable material. Each housing has an interior surface defining an internal chamber that can be selectively filled with a ballast. In one embodiment, the housing has opposing end walls, opposing sidewalls, and a substantially flat bottom wall. A spline and groove are each positioned on one of the opposing end walls. The spline and groove are configured to interlock adjacently positioned barriers. In yet another embodiment, a spout and receiving aperture are positioned on opposing end walls. In this embodiment, the spout of one barrier can be received in sealed fluid communication with the receiving port of an adjacent barrier, thereby allowing fluid communication of the ballast between adjacent barriers. Finally, in yet another embodiment, the bottom wall of the housing can be arched so as to form a passageway extending through the barrier. The bottom wall has a surface that is complementary to the top surface of the housing so that a plurality of barriers can be nestably stacked.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.