Patent US5115474A successfully refreshed from Google Patents.
US5115474A
Expired / Lapsed
US
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Speaker system
Assignee: Pioneer Corp
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Filing: 1991-05-06
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Granted: 1992-05-19
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Expires: 2011-05-06
Abstract
Abstract In a speaker system with a speaker unit attached to a baffle board, the frame of the speaker unit vibrates so that the quality of sound transmitted from the speaker is impaired. These vibrations can be attenuated by coating the outer circumferential edge of the frame with an elastic material such as rubber.
Inventors
- 👤 Yukio Tsuchiya
- 👤 Hiroshi Tanaka
- 👤 Shunichi Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:44
CPC Classifications
H; H04; H04R; H04R7/00; H04R7/16; H04R7/18; H04R7/22; H04R7/20; H04R1/00; H04R1/20; H04R1/22; H04R1/28; H04R1/2869; H04R1/2884; H04R1/2888
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
101 words
A speaker system comprising: a cabinet having a baffle board therein; a speaker comprising a frame, an edge member, and a diaphragm, said diaphragm of said speaker unit being supported at its outermost circumferential edge by said edge member, said edge member being supported by a front portion of an outermost circumferential edge of said frame, said outermost circumferential edge of said frame being disposed at the front of said cabinet; and damping material disposed on and covering said front portion of said outermost circumferential edge of said frame to minimize sound radiation from said outermost circumferential edge of said frame.
Claim 2
Dependent Claim
101 words
A speaker system comprising: a cabinet having a baffle board therein; a speaker comprising a frame, an edge member, and a diaphragm, said diaphragm of said speaker unit being supported at its outermost circumferential edge by said edge member, said edge member being supported by a front portion of an outermost circumferential edge of said frame, said outermost circumferential edge of said frame being disposed at the front of said cabinet; and damping material disposed on and covering said front portion of said outermost circumferential edge of said frame to minimize sound radiation from said outermost circumferential edge of said frame.
Claim 3
Dependent Claim
13 words
A speaker system as in claim 1, wherein the damping material is elastic.
References Cited (Backward Citations)
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US4056697A
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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) | 1995-05-19 | 1995-11-18 | 1996-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-19 | 1999-11-18 | 2000-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-19 | 2003-11-18 | 2004-05-19 | $7700.00 | Window Closed / Lapsed |