Barriers with kiss-offs
US7922420B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2009 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Aug 5, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01F15/086
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A barrier includes a housing having a front wall and an opposing back wall each extending between opposing sidewalls. The housing also includes a floor and an interior surface bounding a chamber, the chamber communicating externally through an inlet opening. A first inset projects into the chamber from the front wall so as to form a recessed pocket on the front wall. A second inset projects into the chamber from the back wall so as to form a recessed pocket on the back wall. The first inset and the second inset are connected together within the chamber so that the chamber encircles the connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.