Permanently fixed end rails on telescopic bleacher seats
US4014522A · kind A · utility
11Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 17, 1975 |
| Grant date | Mar 29, 1977 |
| Priority date | — |
| Expiry date | Nov 17, 1995 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04H3/123
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A bleacher stand of the telescoping kind, wherein a plurality of sections each including a platform and a seat are arranged to be stacked for storage in a vertical column, with the sections situated one above another and to be withdrawn from said stacked position to an extended position wherein the sections are stepped, characterized in that there are guard rails fastened to the ends of the platform portions of the sections which slope upwardly and outwardly therefrom so that when the sections are stacked the guard rails nest one within another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.