US4580654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable sound speaker system
Assignee: Individual
•
Filing: 1985-03-04
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Granted: 1986-04-08
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Expires: 2005-03-04
Abstract
Abstract This portable sound speaker system has an elongated cylinder supporting a layer of acoustically absorbent material lining the interior surface thereof. The cylinder has an open, raised platform as its support in a vertical position, where the platform has a first base plate carrying a plurality of spacers on which is fastened a second plate having a large central hole open to the interior of the cylinder to allow the bass sound to radiate radially outward therefrom. A first, low frequency loudspeaker is fitted down into the upper end of the cylinder, and it radiates upwardly. A second, high frequency loudspeaker is mounted above the first loudspeaker, and it radiates in a generally horizontal direction. A cylindrical speaker grille is fitted over the second loudspeaker and mounted to the top end of the cylinder.
Inventors
- 👤 James W. Hale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:31
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/20; H04R1/32; H04R1/323; H04R1/02; H04R1/22; H04R1/26
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
226 words
A portable sound speaker system comprising: a. an elongated cylindrical enclosure body that is open at the opposite ends, a layer of acoustically absorbent material lining the interior surface of the cylindrical enclosure b. a first, low frequency loudspeaker fitted within the open upper end of the cylindrical enclosure and radiating sound waves upwardly and outwardly; c. a second, high frequency loudspeaker diametrically mounted in an elevated position to the upper end of the cylindrical enclosure above the said first loudspeaker and radiating sound waves in a generally horizontal unidirection; and d. a cylindrical speaker grille of inverted pan shape mounted to the top end of the cylindrical enclosure and encompassing the said second, high frequency loudspeaker as well as the top end of the cylindrical enclosure; e. and a supporting platform mounted to the lower end of the cylindrical enclosure and adapted for supporting this sound speaker system in a vertical position from an underlying supporting surface, said platform comprising a lower base plate and a spaced upper plate with an enlarged opening that communicates with the open bottom end of the cylindrical enclosure, and a plurality of widely spaced spacers separating the base plate from the upper plate and forming an open raised platform that allows the bass sound waves to radiate radially outward from between the spaced base plate and the upper plate.
Claim 2
Dependent Claim
226 words
A portable sound speaker system comprising: a. an elongated cylindrical enclosure body that is open at the opposite ends, a layer of acoustically absorbent material lining the interior surface of the cylindrical enclosure b. a first, low frequency loudspeaker fitted within the open upper end of the cylindrical enclosure and radiating sound waves upwardly and outwardly; c. a second, high frequency loudspeaker diametrically mounted in an elevated position to the upper end of the cylindrical enclosure above the said first loudspeaker and radiating sound waves in a generally horizontal unidirection; and d. a cylindrical speaker grille of inverted pan shape mounted to the top end of the cylindrical enclosure and encompassing the said second, high frequency loudspeaker as well as the top end of the cylindrical enclosure; e. and a supporting platform mounted to the lower end of the cylindrical enclosure and adapted for supporting this sound speaker system in a vertical position from an underlying supporting surface, said platform comprising a lower base plate and a spaced upper plate with an enlarged opening that communicates with the open bottom end of the cylindrical enclosure, and a plurality of widely spaced spacers separating the base plate from the upper plate and forming an open raised platform that allows the bass sound waves to radiate radially outward from between the spaced base plate and the upper plate.
Claim 3
Dependent Claim
40 words
The invention as recited in claim 1 wherein the length of the elongated cylindrical enclosure is about 6 times the diameter of this enclosure, and the supporting platform is larger in size than the diameter of the vertical cylindrical enclosure.
Claim 4
Dependent Claim
88 words
The invention as recited in claim 1 wherein the said first, low frequency loudspeaker is a woofer which substantially fills the open upper end of the cylindrical enclosure, while the said second, high frequency loudspeaker is a tweeter having a raised, inverted, U-shaped bracket supporting the tweeter in a fixed elevated position substantially across the center of the top opening of the cylindrical enclosure, where the high frequency sound waves are directed in a single direction that is generally perpendicular to the longitudinal axis of the cylindrical enclosure.
Claim 5
Dependent Claim
107 words
The invention as recited in claim 3 wherein the said cylindrical enclosure has a handle fitted to one outer side thereof that is located at the rear side of the said tweeter that is generally opposite the single direction of the sound waves radiating from the tweeter, said handle being located nearer to the upper end of the cylindrical enclosure so that the handle is generally balanced with respect to the weight of the speaker system at each end of the handle, where the handle is capable of use for ease in transporting the portable sound speaker system from place to place in a horizontal carrying position.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-07 | 1989-10-07 | 1990-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-07 | 1993-10-07 | 1994-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-07 | 1997-10-07 | 1998-04-08 | $7700.00 | Window Closed / Lapsed |