US3108653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Loud speaker baffle for floors
Assignee: Lowell Manufacturing Co
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Filing: 1961-09-18
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Granted: 1963-10-29
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Expires: 1981-09-18
Abstract
No abstract record available.
Inventors
- 👤 Jose G Valldeperas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:56
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/20; H04R1/32; H04R1/34; H04R1/345
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
A LOUD SPEAKER BAFFLE FOR FLOORS COMPRISING A FLAT SUPPORT HAVING MEANS FOR ATTACHING IT TO A FLOOR SURFACE, SAID SUPPORT HAVING AN IMPERFORATE CENTRAL SECTION AND A PERIPHERAL PERFORATE SECTION, MEANS FOR ATTACHING A CONE SHAPED LOUD SPEAKER CONE BENEATH SAID CENTRAL SECTION, SAID MEANS COMPRISING A CYLINDRICAL TUBULAR ELEMENT CONNECTED AT A TOP END TO THE IMPERFORATE SECTION OF THE FLAT SUPPORT AND AT THE BOTTOM END TO THE LOUD SPEAKER CONE, SAID TUBULAR ELEMENT BEING CONCENTRICALLY DISPOSED WITH THE LOUDSPEAKER CONE AND ENCLOSING THE SAME, MEANS FOR DIRECTING SOUND WAVES FROM THE CONE DOWNWARDLY AND AWAY FROM THE AXIS OF THE CONE AND UPWARDLY ABOUT THE EXTERIOR OF THE TUBULAR ELEMENT, SAID MEANS COMPRISING A WELL MEMBER HAVING A CYLINDRICAL WALL SURFACE CONCENTRIC WITH THE TUBULAR ELEMENT AND SPACED EXTERIORLY THEREFROM TO DEFINE AN ANNULAR SOUND WAVE PASSAGE THEREBETWEEN, SAID WELL MEMBER BEING CONNECTED TO THE FLAT SUPPORT EXTERIORLY OF THE PERFORATE SECTION, AND A DIFFUSING CONE CONNECTED TO THE BOTTOM OF THE WELL MEMBER HAVING AN UPWARDLY DIRECTED APEX POSITIONED AXIALLY AND IN SPACED RELATION UNDERNEATH THE LOUD SPEAKER CONE.
Claim 2
Dependent Claim
184 words
A LOUD SPEAKER BAFFLE FOR FLOORS COMPRISING A FLAT SUPPORT HAVING MEANS FOR ATTACHING IT TO A FLOOR SURFACE, SAID SUPPORT HAVING AN IMPERFORATE CENTRAL SECTION AND A PERIPHERAL PERFORATE SECTION, MEANS FOR ATTACHING A CONE SHAPED LOUD SPEAKER CONE BENEATH SAID CENTRAL SECTION, SAID MEANS COMPRISING A CYLINDRICAL TUBULAR ELEMENT CONNECTED AT A TOP END TO THE IMPERFORATE SECTION OF THE FLAT SUPPORT AND AT THE BOTTOM END TO THE LOUD SPEAKER CONE, SAID TUBULAR ELEMENT BEING CONCENTRICALLY DISPOSED WITH THE LOUDSPEAKER CONE AND ENCLOSING THE SAME, MEANS FOR DIRECTING SOUND WAVES FROM THE CONE DOWNWARDLY AND AWAY FROM THE AXIS OF THE CONE AND UPWARDLY ABOUT THE EXTERIOR OF THE TUBULAR ELEMENT, SAID MEANS COMPRISING A WELL MEMBER HAVING A CYLINDRICAL WALL SURFACE CONCENTRIC WITH THE TUBULAR ELEMENT AND SPACED EXTERIORLY THEREFROM TO DEFINE AN ANNULAR SOUND WAVE PASSAGE THEREBETWEEN, SAID WELL MEMBER BEING CONNECTED TO THE FLAT SUPPORT EXTERIORLY OF THE PERFORATE SECTION, AND A DIFFUSING CONE CONNECTED TO THE BOTTOM OF THE WELL MEMBER HAVING AN UPWARDLY DIRECTED APEX POSITIONED AXIALLY AND IN SPACED RELATION UNDERNEATH THE LOUD SPEAKER CONE.
References Cited (Backward Citations)
DE721732C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |