Fence with plugged openings and methods of plugging same
US6994326B1 · kind B1 · utility
10Cited by
21References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 20, 2004 |
| Grant date | Feb 7, 2006 |
| Priority date | — |
| Expiry date | Feb 3, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04H17/143
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A fence with hollow posts and rails uses a flexible plug that is placed in insect entry path blocking position by sliding the plug into a fence rail in a direction that is perpendicular to the longitudinal axis of the plug. A friction fit between shoulders on the plug and a rib and ledge inside of the rail is attained by the relative spacing of the shoulders to the spacing of the rib and ledge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.