Sound dampening device for horns
AssigneeBaultar Inc.
InventorsBruno Archambault, Mario Maltais, Andre Albert
Life of this patent
Estimating the term…
Abstract
The horn housing may comprise an inner metal shell in the shape of a hexagonal box open at one end fitting into a similarly shaped outer dense solid box similarly open at one end. Space between the inner and the outer boxes being filled by a low density sound absorbing filler, and the inner box being connected to the outer box by vibration absorbing bolts. The outer box is mounted to a structure by vibration absorbing mounting brackets. When a high decibel horn or siren is mounted in the inner box to directed sound through the opening, most of the sound propagating sideways towards the structure is absorbed by the housing increasing the comfort level of passengers or crew inside the structure.
Claims7
A horn housing comprising:
- an inner solid horn containing metal box having a shape of a prism with an open end and a closed end;
- an outer dense solid box molded from a composite material having a shape of a prism with an open end and a closed end, the outer box containing the inner box;
- an intermediate low density sound absorbing synthetic filler for filling a space between the inner and the outer boxes;
- means for connecting the inner box to the outer box, said connecting means transmitting little vibration from the inner box to the outer box in a frequency range of the horn;
- and
- means for mounting a side of the outer box to a structure for housing at least one person, said mounting means transmitting little vibration from the outer box to said structure, whereby at least one horn is installed inside the inner box for directing sound through said opening of the inner box and through said opening of the outer box, said housing absorbing most of said sound propagating sideways towards said structure, whereby sound may be reflected from a wall and said closed end and reflected out through said open end.
Dependencies are inferred from the claim text.