US4072829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attachment for loudspeaker
Assignee: Olympus Corp
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Filing: 1976-08-30
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Granted: 1978-02-07
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Expires: 1996-08-30
Abstract
Abstract An attachment for a loudspeaker comprises an annular resilient frame which is formed in its inner peripheral surface with a groove which is adapted to receive therein an outer circumferential flange of the loudspeaker surrounding the opening thereof. The attachment is provided with means for securing it to a loudspeaker mounting surface.
Inventors
- 👤 Kenzo Ogihara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:20
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/02; H04R1/025
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
110 words
An attachment for a loudspeaker comprising a resilient mounting frame of a configuration conforming to the outer periphery of a loudspeaker and extending around an opening thereof, a groove formed in the inner circumferential surface of the frame for receiving the peripheral flange of the loudspeaker has a tight fit, and means for bonding the frame to a loudspeaker mounting surface; the said frame is annular in configuration, the edge of the groove which is remote from the edge bonded to the mounting surface comprising a semi-circular edge portion and at least one sector-shaped edge portion spaced from the semi-circular portion and subtending an angle of the order of 10°.
Claim 2
Dependent Claim
110 words
An attachment for a loudspeaker comprising a resilient mounting frame of a configuration conforming to the outer periphery of a loudspeaker and extending around an opening thereof, a groove formed in the inner circumferential surface of the frame for receiving the peripheral flange of the loudspeaker has a tight fit, and means for bonding the frame to a loudspeaker mounting surface; the said frame is annular in configuration, the edge of the groove which is remote from the edge bonded to the mounting surface comprising a semi-circular edge portion and at least one sector-shaped edge portion spaced from the semi-circular portion and subtending an angle of the order of 10°.
Claim 3
Dependent Claim
92 words
An attachment for a loudspeaker comprising a resilient mounting frame of a configuration conforming to the outer periphery of a loudspeaker and extending around an opening thereof, a groove formed in the inner circumferential surface of the frame for receiving the peripheral flange of the loudspeaker has a tight fit, and means for bonding the frame to a loudspeaker surface; the width of the said groove increasing with depth, with an edge of the groove which is remote from the edge being bonded to the mounting surface having an inclined inner surface.
Claim 4
Dependent Claim
92 words
An attachment for a loudspeaker comprising a resilient mounting frame of a configuration conforming to the outer periphery of a loudspeaker and extending around an opening thereof, a groove formed in the inner circumferential surface of the frame for receiving the peripheral flange of the loudspeaker has a tight fit, and means for bonding the frame to a loudspeaker surface; the width of the said groove increasing with depth, with an edge of the groove which is remote from the edge being bonded to the mounting surface having an inclined inner surface.
Claim 5
Dependent Claim
59 words
The attachment for a loudspeaker of claim 2 in which the said frame is annular in configuration, the edge of the groove which is remote from the edge bonded to the mounting surface comprising a semi-circular edge portion and at least one sector-shaped edge portion spaced from the semi-circular portion and subtending an angle of the order of 10°.
Claim 6
Dependent Claim
19 words
The attachment for a loudspeaker of claim 3 in which two of said sector shaped edge portions are used.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-06 | 1981-08-08 | 1982-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-06 | 1985-08-08 | 1986-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-06 | 1989-08-08 | 1990-02-07 | $7700.00 | Window Closed / Lapsed |