Cantilevered sliding gate
US4723374A · kind A · utility
28Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1987 |
| Grant date | Feb 9, 1988 |
| Priority date | — |
| Expiry date | Jun 24, 2007 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B11/045
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cantilevered sliding gate made up of a number of panels is disclosed. The panels are joined by post-tensioning rods, carried within horizontal members of the gate and extending substantially the length of horizontal members of the gate. During gate assembly, a tensile stress is induced in the post-tensioning means, which stress is transmitted to the horizontal member as a compressive stress. The resulting stress pattern results in a stiffening effect on the gate assembly, permitting lighter-weight construction than previously possible. The gate is mounted on vertical supports for movement in a plane defined by the supports.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.