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US3131783A Expired / Lapsed US ⏱️ 0.0 years remaining

Loud-speaker enclosure

Assignee: Individual
•
Filing: 1960-11-04
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Granted: 1964-05-05
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Expires: 1980-11-04
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Abstract

No abstract record available.

Inventors

  • 👤 Santos J Mares

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 10:36
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/20; H04R1/22; H04R1/28; H04R1/2807; H04R1/2853; H04R1/2857; H04R1/32; H04R1/323

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 258 words
A LOUDSPEAKER ENCLOSURE PARTICULARLY ADAPTED TO CREATE BINAURAL AUDIO REPRODUCTION COMPRISING: ENCLOSURE BOX MEANS FORMING A PAIR OF COMPLEMENTARY SEALED CHAMBERS; EACH SAID CHAMBER HAVING A FIRST VERTICAL SIDE WALL RELATIVELY MOUNTED IN A SUBSTANTIALLY 90* RELATIONSHIP TO THE FIRST SIDE WALL OF THE OTHER CHAMBER; EACH SAID FIRST SIDE WALL FORMING A LOUDSPEAKER RECEIVING APERTURE OF COMPLEMENTARY SIZE TO ALLOW A LOUDSPEAKER TO BE MOUNTED WITHIN THE CHAMBER OVER THE APERTURE; A VERTICAL DEFLECTOR PLATE EXTENDING OUTWARD AT A REARWARD ANGLE FROM SAID FIRST SIDE WALL TO COVER LESS THAN ALL OF THE SPEAKER APERTURE; AN AIR OUTLET PORT FORMED BY EACH SAID FIRST SIDE WALL SPACED FROM SAID LOUDSPEAKER RECEIVING APERTURE; PARTITION MEANS DIVIDING EACH SAID CHAMBER INTO A COMPRESSION AREA IMMEDIATELY ADJACENT THE LOUDSPEAKER RECEIVING APERTURE; A FIRST RECTANGULAR HORN AREA, AND A SECOND RECTANGULAR HORN AREA; SAID PARTITION MEANS BEING ANGULARLY DISPOSED TO PROVIDE A WIDER AREA AT THE SECOND END OF EACH HORN AREA THAN AT THE FIRST END OF EACH HORN AREA; A PASSAGEWAY FORMED BY SAID PARTITION MEANS TO FORM AN AIR COMMUNICATION PORT BETWEEN SAID COMPRESSION AREA AND THE FIRST END OF SAID FIRST HORN AREA; AND A SECOND PASSAGEWAY FORMED BY SAID PARTITION MEANS FORMING AN AIR COMMUNICATION PORT BETWEEN SAID FIRST AND SECOND HORN AREAS LOCATED ADJACENT THE SECOND END OF SAID FIRST HORN AREA AND THE FIRST END OF SAID SECOND HORN AREA; SAID AIR OUTLET PORT FORMED BY SAID FIRST SIDE WALLS BEING LOCATED ADJACENT AND OPENING INTO THE SECOND END OF SAID SECOND HORN AREA.
Claim 2
Dependent Claim 258 words
A LOUDSPEAKER ENCLOSURE PARTICULARLY ADAPTED TO CREATE BINAURAL AUDIO REPRODUCTION COMPRISING: ENCLOSURE BOX MEANS FORMING A PAIR OF COMPLEMENTARY SEALED CHAMBERS; EACH SAID CHAMBER HAVING A FIRST VERTICAL SIDE WALL RELATIVELY MOUNTED IN A SUBSTANTIALLY 90* RELATIONSHIP TO THE FIRST SIDE WALL OF THE OTHER CHAMBER; EACH SAID FIRST SIDE WALL FORMING A LOUDSPEAKER RECEIVING APERTURE OF COMPLEMENTARY SIZE TO ALLOW A LOUDSPEAKER TO BE MOUNTED WITHIN THE CHAMBER OVER THE APERTURE; A VERTICAL DEFLECTOR PLATE EXTENDING OUTWARD AT A REARWARD ANGLE FROM SAID FIRST SIDE WALL TO COVER LESS THAN ALL OF THE SPEAKER APERTURE; AN AIR OUTLET PORT FORMED BY EACH SAID FIRST SIDE WALL SPACED FROM SAID LOUDSPEAKER RECEIVING APERTURE; PARTITION MEANS DIVIDING EACH SAID CHAMBER INTO A COMPRESSION AREA IMMEDIATELY ADJACENT THE LOUDSPEAKER RECEIVING APERTURE; A FIRST RECTANGULAR HORN AREA, AND A SECOND RECTANGULAR HORN AREA; SAID PARTITION MEANS BEING ANGULARLY DISPOSED TO PROVIDE A WIDER AREA AT THE SECOND END OF EACH HORN AREA THAN AT THE FIRST END OF EACH HORN AREA; A PASSAGEWAY FORMED BY SAID PARTITION MEANS TO FORM AN AIR COMMUNICATION PORT BETWEEN SAID COMPRESSION AREA AND THE FIRST END OF SAID FIRST HORN AREA; AND A SECOND PASSAGEWAY FORMED BY SAID PARTITION MEANS FORMING AN AIR COMMUNICATION PORT BETWEEN SAID FIRST AND SECOND HORN AREAS LOCATED ADJACENT THE SECOND END OF SAID FIRST HORN AREA AND THE FIRST END OF SAID SECOND HORN AREA; SAID AIR OUTLET PORT FORMED BY SAID FIRST SIDE WALLS BEING LOCATED ADJACENT AND OPENING INTO THE SECOND END OF SAID SECOND HORN AREA.

References Cited (Backward Citations)

US2050575A Cited
US2224919A Cited
DE970228C Cited
US2805729A Cited
US2975852A Cited
US2811215A Cited
US2904123A Cited
GB841440A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1967-05-05 1967-11-04 1968-05-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1971-05-05 1971-11-04 1972-05-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1975-05-05 1975-11-04 1976-05-05 $7700.00 Window Closed / Lapsed

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