Security slot diffuser

Details Security slot diffuser Security slot diffuser

1991-08-30

1993-04-27

Tapolcai, William E.

Ventilation

Having both inlet and outlet airways

Including unitary inlet and outlet housing

169 54, F24F 708

Patent

active

052057844

ABSTRACT:
A diffuser (10) is disclosed which is suitable for use in high security areas such as a jail. The diffuser is constructed of 10 gauge plate and defines an inlet passage (16) and a return passage (18). The return passage (18) can be utilized as a second inlet passage if desired. The air flow is through slots in a plate (34). A deflector portion (24) is curved over the slots to deflect the air in a first direction. In a second embodiment, a diffuser (100) is provided with slotted plates (102, 104) and a deflector (112) to discharge air in opposite horizontal directions.

REFERENCES:
patent: 1177779 (1916-04-01), Kerch
patent: 1245123 (1917-10-01), Power
patent: 1660689 (1928-02-01), Terry
patent: 2657625 (1953-11-01), Smith et al.
patent: 3010378 (1961-11-01), Geocaris
patent: 3291028 (1966-12-01), Sylvester et al.
patent: 3722152 (1973-03-01), Schlatter et al.
patent: 4505189 (1985-03-01), Morris et al.
patent: 4970834 (1990-11-01), Polson

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