Subfloor damper and spill container

Details Subfloor damper and spill container Subfloor damper and spill container

1990-02-01

1993-01-19

Joyce, Harold

Ventilation

Clean room

454290, F24F 1310

Patent

active

051803313

ABSTRACT:
A device attachable to a suspended floor member (i) for collecting materials which fall through grid openings in the floor member and (ii) for controlling the rate of airflow through the grid openings in an adjustable manner. The device includes a spill container for positioning under the grid openings of the floor member in a coordinated position such that a venting path is provided for permitting airflow past the spill container from above the floor member while retaining the capacity to collect liquids and particulate matter flowing through the grid openings. Adjustable dampening structure is coupled with the spill member to provide selection of differing vent openings to control rate of airflow through the structure.

REFERENCES:
patent: 533428 (1895-02-01), Beatty
patent: 4729292 (1988-03-01), Marton
patent: 4829886 (1989-05-01), Battaglin

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