Light transmitting panel with sound damping properties

Details Light transmitting panel with sound damping properties Light transmitting panel with sound damping properties

1975-09-16

1977-04-26

Perham, Alfred C.

Static structures (e.g., buildings)

Viewing port for specific environment

52172, 52616, 156107, 181 33G, 428 34, E06B 520, B32B 104

Patent

active

040192954

ABSTRACT:
A light transmitting panel composed of at least two panes held in spaced relation by a spacer assembly to define at least one space between panes is given improved sound damping properties by giving such space a thickness of greater than 9mm, by causing the space between panes to be sealed from the external atmosphere, and by filling this space with a gaseous medium composed of air and at least one other gas, the air constituting at least 30%, by volume, of the medium, and whose composition is such that the velocity of sound propagation therethrough differs by at least 5% from that in dry air at the same pressure and temperature as the medium.

REFERENCES:
patent: 2011557 (1935-08-01), Anderegg
patent: 2817124 (1957-12-01), Dybrig
patent: 2885746 (1959-05-01), Gura
patent: 3596622 (1971-08-01), Moore
patent: 3775914 (1973-12-01), Patil
patent: 3783084 (1974-01-01), Quenett
patent: 3846152 (1974-11-01), Franz
patent: 3875706 (1975-04-01), Okawa
patent: 3897580 (1975-07-01), Ingenansson

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