Concrete washout container

Cleaning and liquid contact with solids – Apparatus – Miscellaneous

Reexamination Certificate

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Details

C134S104200, C134S104400, C134S159000, C134S16600C

Reexamination Certificate

active

07124767

ABSTRACT:
A washout container to which are mounted inclined ramps that allow a transit mixer, concrete pumping truck or other concrete handling vehicle to drive up over a portion of the container for dumping excess concrete and washing out waste concrete. The container cross-section may be rectangular to semi-circular, and is preferably fabricated with a steel structure. A watertight latching door assembly is coupled to the container to prevent leakage of collected liquid concrete waste material while allowing solidified concrete materials to be unloaded at a disposal site. The interior of the container is preferably lined with a material to which concrete will not adhere. The liner may be applied as a coating to the interior of the container or as a solid material retained within the container. In this way, solidified waste concrete can be easily removed from the container at the disposal site and preferably crushed for recycling.

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patent: 4705446 (1987-11-01), Miller
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patent: 6283909 (2001-09-01), Sharp
patent: 2002/0092799 (2002-07-01), Storruste
patent: 2002/0098071 (2002-07-01), Henderson
patent: 2003/0205257 (2003-11-01), Gross
patent: 2004/0074903 (2004-04-01), Klempner
patent: 2-127280 (1990-05-01), None

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