Eavesdropping-proof room and sound dampening devices therefor

Details Eavesdropping-proof room and sound dampening devices therefor Eavesdropping-proof room and sound dampening devices therefor

1990-12-28

1993-08-31

Ridgill, Jr., James L.

Static structures (e.g., buildings)

Preassembled subenclosure or substructure section of unit or...

52171, 522824, E04B 199, E06B 510

Patent

active

052397920

ABSTRACT:
An eavesdropping-proof room comprises boundary components that are substantially transparent, at least from one surface thereof, whereby any device implanted therein is immediately visible. Sound dampening devices for aerating closed rooms are also provided, which comprise, optionally in combination with a fan or other device for withdrawing or introducing air, a casing, a number of partitions dividing said casing into various compartments and a number of channels connecting said compartments in such a way as to determine a zigzag path of the air flowing through the device and the withdrawal of a fraction of the air from each compartment, which results in a dampening of sounds carried by such air.

REFERENCES:
patent: 2917793 (1959-12-01), Owen
patent: 3229429 (1966-01-01), Conrad
patent: 3664069 (1972-05-01), Ikai et al.
patent: 3740903 (1973-06-01), Ahern
patent: 3827531 (1974-08-01), Hansen
patent: 3985957 (1976-10-01), Torn
patent: 4035539 (1977-07-01), Luboshez
patent: 4347381 (1982-11-01), Wilson
patent: 4352039 (1982-09-01), Hagood et al.
patent: 4443987 (1984-04-01), Erb
patent: 4613530 (1986-09-01), Hood et al.
patent: 4761921 (1988-08-01), Nelson
patent: 4829729 (1989-05-01), Derner et al.
patent: 4860511 (1989-08-01), Weisner et al.
patent: 4914877 (1990-04-01), Bennett
patent: 4966801 (1990-10-01), Becker et al.
patent: 4979345 (1990-12-01), Celsi
European Search Report dated Apr. 21, 1992 (translated).

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