Loud speaker with horizontal radiation pattern

A speaker comprising:

• a substantially circular speaker lower horn member having a central axis and an upwardly facing surface which includes a substantially convex annular portion and a substantially concave central cavity portion, said central cavity portion defining a solid surface which is rotationally symmetric about the central axis of the lower horn member, said solid surface including a cusp which is coaxial with the lower horn member, said cusp being located below the level of said lower horn member annular portion and having inner walls forming a smooth, substantially W-shaped bowl when viewed in section;
• a substantially circular speaker upper horn member having a central axis and a downwardly facing surface which includes a substantially convex annular outer portion and a central opening;
• means for spacing the upper horn member coaxially with and immediately above the lower horn member to thereby define an annular, radially outwardly diverging sound director between the upper and lower horn members;
• diffuser means coupled to the central opening of the upper horn member and extending downwardly into the cavity portion of the lower horn member, said diffuser means being coaxial with said horn members;
• and
• driver means mounted in the upper horn member and coupled to the diffuser means for projecting sound through the diffuser means into the cavity portion of lower horn member, the sound being reflected upwardly out of the said lower member cavity portion into the sound director whereby the sound is projected in a 360.degree. pattern.

A siren comprising:

• a plurality of speakers, each of said speakers including:
• a substantially circular speaker lower horn member having a central axis and an upwardly facing surface which includes a substantially convex annular portion and a substantially concave central cavity portion;
• a substantially circular speaker upper horn member having a central axis and a downwardly facing surface which includes a substantially convex annular outer portion and a central opening;
• means for spacing the upper horn member coaxially with and immediately above the lower horn member to thereby define an annular, radially outwardly diverging sound director between the upper and lower horn members;
• diffuser means coupled to the central opening of the upper horn member and extending downwardly into the cavity portion of the lower horn member;
• and driver means mounted in the upper horn member and coupled to the diffuser means for projecting sound through the diffuser means into the cavity portion of the lower horn member, the sound being reflected upwardly out of the cavity into the sound director whereby the sound is projected in a 360.degree. pattern;
• and
• means for connecting said speakers together to form a vertical stack of speakers, said connecting means mechanically joining each individual speaker lower horn member along its circumference to an abutting individual speaker upper horn member to thereby define a plurality of individual pods, said connecting means including a plurality of discrete support segments, each segment being connected at its upper end to one upper horn member and to a first vertically aligned segment, each segment being connected at its lower end to one lower horn member and to a second vertically aligned segment.

A siren having a plurality of speakers, each of said speakers including:

• substantially circular speaker lower horn member having a central axis and an upwardly facing surface which includes a substantially convex annular portion and a substantially concave central cavity portion, said central cavity portion defining a solid surface;
• a substantially circular speaker upper horn member having a central axis and a downwardly facing surface which includes a substantially convex annular outer portion and a central opening;
• means for spacing the upper horn member coaxially with and immediately above the lower horn member to thereby define an annular, radially outwardly diverging sound director between the upper and lower horn members;
• diffuser means coupled to the central opening of the upper horn member and extending downwardly into the cavity portion of the lower horn member;
• and
• driver means mounted in the upper horn member and coupled to the diffuser means for projecting sound through the diffuser means into the cavity portion of the lower horn member, the sound being reflected upwardly out of the cavity into the sound director whereby the sound is projected in a 360.degree. pattern;
• the siren further comprising:
• means for connecting said speakers together to form a vertical stack, said connecting means joining each individual speaker lower horn member along its circumferential to an abutting individual speaker horn member to thereby define a plurality of individual spaced apart pods.

A speaker comprising:

• a substantially circular lower horn member having a central axis and an upwardly facing surface which includes a substantially convex annular portion and a substantially concave central cavity portion;
• a substantially circular upper horn member having central axis and a downwardly facing surface which includes a substantially convex annular outer portion and a central opening;
• means for spacing the upper horn member coaxially with and immediately above the lower horn member to thereby define an annular, radially outwardly diverging sound director between the upper and lower horn members;
• diffuser means coupled to the central opening of the upper horn member and extending coaxially of said horn members downwardly into the cavity portion of the lower horn members;
• and
• driver means mounted in the upper horn member and coupled to the diffuser means for projecting sound through the diffuser means into the cavity portion of the lower horn member, the sound being reflected upwardly out of the cavity portion into the sound director whereby the sound is projected in a 360.degree. pattern, the driver means including:
• coil housing means, said housing means having a rim;
• a coil form suspended coaxially within said housing means rim;
• a flexible diaphragm connected between said coil form and said rim;
• a voice coil carried by said form;
• a least a first electrical terminal supported on said housing means and;
• an electrical lead connected between said coil and said terminal, said lead being laminated to the said diaphragm with a piece of fabric.