Grate for closing a drain and similar

Details Grate for closing a drain and similar Grate for closing a drain and similar

2007-12-04

2007-12-04

Upton, Christopher (Department: 1724)

Liquid purification or separation

Structural installation

Grated inlet surface drain

C210S474000, C404S004000

Reexamination Certificate

active

10523554

ABSTRACT:
The invention relates to a grate for closing a drain and similar. The inventive grate comprises an internal elastically deformable grid (2) provided with a locking pin (8) arranged on the free end thereof. Said locking pin is used for connecting the deformable grid to a frame (7) and is arranged under the external solid edge (9) of the grid in such a way that it is invisible from outside when it is incorporated into the frame (7). Said invention is used for a road network.

REFERENCES:
patent: 791381 (1905-05-01), Thompson
patent: 1056801 (1913-03-01), Kurz
patent: 3881832 (1975-05-01), Maguire
patent: 4126404 (1978-11-01), Ferns
patent: 4909660 (1990-03-01), Ferns
patent: 4952094 (1990-08-01), Spiess et al.
patent: 489 676 (1991-11-01), None
patent: 506 591 (1992-03-01), None
patent: 668409 (1995-02-01), None
patent: 0 694 654 (1996-01-01), None
patent: 2 079 355 (1982-01-01), None

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