SOUNDPROOF DOOR FOR USE IN REDUCTION OF SOUND TRANSMITTED FROM ONE SIDE OF THE DOOR TO THE OTHER SIDE
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United States of America Patent
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Issued Date -
Jan 26, 2017
app pub date -
Jul 24, 2015
filing date -
Jul 24, 2015
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A soundproof door is disclosed to has a multiple-layered core to form a concrete inner portion of the soundproof door, the multiple-layered core due to particularly constituted by having a soft-soundproofing core interleaved in between two spaced hard-soundproofing cores to form as a whole as a sandwich structure are excellent in sound isolation for soundproof door, and the soundproof door at least has an STC of 30, determined in accordance with ASTM E413-10 and E90-09, to minimize the transmission of sound from one side of the soundproof door to the other side.
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