Reflective acoustical damping device for rooms
OwnerArthur M. Noxoninventor
Life of this patent
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Abstract
An acoustical device for damping and absorption of certain frequencies in a room and including a surface which functions as a low pass filter to maintain low frequency absorptive properties without reducing the acoustical brightness of the room. The device may be embodied as a piece of free standing room furniture. A capped tube of the device defines an internal ambient air chamber. Exteriorly of the tube is a perforate sound reflective member. The perforation size and spacing function as a mechanical low pass cross-over system. A cross-over option is presented to include an imperforate limp mass sheet covering at least partially the absorbent tube surface.
Claims10
A sound dampening device for use within a room area, said device comprising,
- a continuous sound absorbent member of elongate tubular shape,
- a closure means in place on the opposite ends of said absorbent member to define therewith a chamber,
- porous sheet material in place about said sound absorbent member, and
- a reflector overlying said porous sheet, said reflector having a reflective zone extending only partially about said absorbent member to reflect wave frequences approximately 300 Hz and above with the absorbent member serving to dampen lower frequencies.
Dependencies are inferred from the claim text.