Locking component for securing a cover on a frame
US5110235A · kind A · utility
15Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 1990 |
| Grant date | May 5, 1992 |
| Priority date | — |
| Expiry date | May 22, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03F2005/065
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention comprises a grate having a device to prevent it from dislodging when a vehicle drives over the grate. For this purpose, a part (2') of the supporting component at a side face of the grate (1) is designed as a thin, tongue-shaped wall (33) with an outer thickening (34). The supporting component has a notch (35) that is vertical with respect to its longitudinal axis on an end of the tongue-shaped wall, a thickening (22) or a depression being located on an inner side face of the associated supporting frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.