Light transmitting panel

Details Light transmitting panel Light transmitting panel

1975-09-16

1977-09-13

Perham, Alfred C.

Static structures (e.g., buildings)

Opaque stonelike module

With layered stonelike components

52172, 428 34, B32B 104, E04C 234

Patent

active

040473511

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 employing panes which exhibit at least two different masses per unit surface area, by causing the space between panes to be sealed from the external atmosphere, and by filling this space with a gaseous medium whose composition is such that the velocity of sound propagation therethrough is different 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), Dybvig
patent: 2885746 (1959-05-01), Gura
patent: 2939811 (1960-06-01), Dillon
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: 3868299 (1975-02-01), Ulish
patent: 3875706 (1975-04-01), Okawa
patent: 3897580 (1975-07-01), Ingenansson

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