Curbside drain barrier for detaining solid trash during no...

Details Curbside drain barrier for detaining solid trash during no... Curbside drain barrier for detaining solid trash during no...

2005-03-22

2005-03-22

Upton, Christopher (Department: 1724)

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Float

C210S131000, C210S156000, C210S163000, C404S004000

Reexamination Certificate

active

06869523

ABSTRACT:
A system to exclude trash from curbside drains during periods of no or slow water flow, but opening to permit full entry during heavier flow such as during heavy rains. The system may have a linkage preventing opening by force on its barrier, and to assure that it will remain open should downstream drainage systems become flooded.

REFERENCES:
patent: 248559 (1881-10-01), Jackson
patent: 1245903 (1917-11-01), Gross
patent: 1999637 (1935-04-01), Pettepher
patent: 6015489 (2000-01-01), Allen et al.
patent: 6217756 (2001-04-01), Martinez
patent: 6726402 (2004-04-01), Martinez
patent: 6733665 (2004-05-01), Khalil

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