Patent EP0609084A2 successfully refreshed from Google Patents.
US4090427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stringed musical instrument body
Assignee: Kaman Music Corp
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Filing: 1976-06-23
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Granted: 1978-05-23
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Expires: 1996-06-23
Abstract
Abstract In a stringed musical instrument body, such as for a guitar, the top plate or soundboard of the body is attached to the sidewall by an elongated mounting member extending along the marginal edge of the soundboard and between such marginal edge and the adjacent upper edge of the sidewall. The mounting member resiliently supports the top plate and influences its natural frequency. The rounded shape of the mounting member avoids the otherwise sharp corner occurring at the front edge of the instrument body, and the mounting member is preferably made of a molded plastic which may include a molded ornamental design on its outer visible surface.
Inventors
- 👤 Charles H. Kaman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:52
CPC Classifications
G; G10; G10D; G10D1/00; G10D1/04; G10D1/05; G10D1/08
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
249 words
In a stringed musical instrument body having a generally vertical sidewall with an upper edge and a generally horizontal top plate with a marginal edge, the improvement consisting of a construction for resiliently attaching said top plate along its marginal edge portion to said sidewall so as to allow said marginal edge portion to vibrate relative to said sidewall, said construction comprising said marginal edge of said top plate being horizontally space along its length a substantial distance inboard of said upper edge of said sidewall, and a mounting member extending along the length of said upper side wall edge and said marginal top plate edge, said mounting member having an outboard longitudinal edge portion fixed to the upper edge portion of said sidewall, an inboard longitudinal edge portion fixed to said marginal portion of said top plate, and an intermediate portion extending substantially from said upper edge of said sidewall to said marginal edge of said top plate, said intermediate portion being resiliently flexible so as to permit said marginal edge portion of said top plate to vibrate vertically relative to said sidewall through accompanying bending of said intermediate portion of said mounting member, said marginal edge portion of said top plate being spaced vertically above said upper edge of said sidewall, and said intermediate portion of said mounting member in a vertical section perpendicular to its longitudinal axis curving upwardly from said upper edge of said sidewall and inwardly to said marginal edge of said top plate.
Claim 2
Dependent Claim
249 words
In a stringed musical instrument body having a generally vertical sidewall with an upper edge and a generally horizontal top plate with a marginal edge, the improvement consisting of a construction for resiliently attaching said top plate along its marginal edge portion to said sidewall so as to allow said marginal edge portion to vibrate relative to said sidewall, said construction comprising said marginal edge of said top plate being horizontally space along its length a substantial distance inboard of said upper edge of said sidewall, and a mounting member extending along the length of said upper side wall edge and said marginal top plate edge, said mounting member having an outboard longitudinal edge portion fixed to the upper edge portion of said sidewall, an inboard longitudinal edge portion fixed to said marginal portion of said top plate, and an intermediate portion extending substantially from said upper edge of said sidewall to said marginal edge of said top plate, said intermediate portion being resiliently flexible so as to permit said marginal edge portion of said top plate to vibrate vertically relative to said sidewall through accompanying bending of said intermediate portion of said mounting member, said marginal edge portion of said top plate being spaced vertically above said upper edge of said sidewall, and said intermediate portion of said mounting member in a vertical section perpendicular to its longitudinal axis curving upwardly from said upper edge of said sidewall and inwardly to said marginal edge of said top plate.
Claim 3
Dependent Claim
86 words
The improvement of claim 1 further characterized by said marginal edge portion of said top plate being spaced above said top edge of said sidewall by a distance H and said marginal edge top plate being spaced horizontally inboard of said upper edge portion of said sidewall by a distance L, said distance H and said distance L being approximately equal to one another and said intermediate portion of said mounting member in a vertical section perpendicular to its longitudinal axis being of an arcuate shape.
Claim 4
Dependent Claim
32 words
The improvement of claim 1 further characterized by said intermediate portion of said mounting member having substantially uniform thickness d which thickness d is substantially less than one-half said horizontal distance L.
Claim 5
Dependent Claim
24 words
The improvement of claim 3 further characterized by said mounting ring being made of a molded material consisting at least in part of plastic.
Claim 6
Dependent Claim
21 words
The improvement of claim 4 further characterized by said molded material being a composite material consisting of fiberglass fibers and resin.
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) | 1981-05-22 | 1981-11-21 | 1982-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-22 | 1985-11-21 | 1986-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-22 | 1989-11-21 | 1990-05-23 | $7700.00 | Window Closed / Lapsed |