Patent US4249449A successfully refreshed from Google Patents.
US4249449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Musical instrument
Assignee: Individual
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Filing: 1979-10-23
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Granted: 1981-02-10
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Expires: 1999-10-23
Abstract
Abstract There is provided a stringed instrument in which an outer peripheral frame surrounds an open area, and in which a sounding board extends across the open area attached to the frame. Anchoring means for strings are centrally located in the open area, and pegs are distributed around the edge of the frame. Strings are provided between the anchoring means and the pegs, and due to the symmetrical nature of the structure, the high tension forces exerted by the strings on the center anchoring means are largely balanced out, so that particularly heavy bracing structure for the anchoring means is not required. The instrument is suitable for being played by a plurality of players, approaching the instrument from several directions, this being a departure from typical stringed instruments which are designed to be played only by one person at a time.
Inventors
- 👤 Robin E. Armstrong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:53
CPC Classifications
G; G10; G10D; G10D1/00; G10D3/00; G10D3/12
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
135 words
A stringed instrument comprising: an outer peripheral frame means defining a closed loop surrounding an open area, said frame means having a given thickness, an upper surface and a lower surface, a sounding board extending across said open area, a plurality of strings, anchoring means centrally located in said open center, said anchoring means being adapted to receive and anchor one end of each of said plurality of strings, peg means distributed around said peripheral frame means, adapted to receive the other ends of the strings, whereby the strings can be tightened and tuned, and whereby the forces exerted by the tightened strings on said anchoring means are substantially balanced, outer bridge means in contact with the strings adjacent the peg means, and inner bridge means in contact with the strings adjacent the anchoring means.
Claim 2
Dependent Claim
135 words
A stringed instrument comprising: an outer peripheral frame means defining a closed loop surrounding an open area, said frame means having a given thickness, an upper surface and a lower surface, a sounding board extending across said open area, a plurality of strings, anchoring means centrally located in said open center, said anchoring means being adapted to receive and anchor one end of each of said plurality of strings, peg means distributed around said peripheral frame means, adapted to receive the other ends of the strings, whereby the strings can be tightened and tuned, and whereby the forces exerted by the tightened strings on said anchoring means are substantially balanced, outer bridge means in contact with the strings adjacent the peg means, and inner bridge means in contact with the strings adjacent the anchoring means.
Claim 3
Dependent Claim
19 words
A stringed instrument as claimed in claim 1, in which each bridge means is constituted by a continuous ridge.
Claim 4
Dependent Claim
59 words
A stringed instrument as claimed in claim 1, in which said sounding board extends in substantial alignment with said upper surface of the frame means, in which a further sounding board extends in substantial alignment with said lower surface of the frame means, and in which said anchoring means is held in position primarily by said further sounding board.
Claim 5
Dependent Claim
79 words
A stringed instrument as claimed in claim 3, in which said anchoring means is a section of a pipe of which the axis is perpendicular to the sounding boards, said pipe being glued to a wooden block member in turn glued to said further sounding board, the section of pipe projecting through and above said first-mentioned sounding board and having a plurality of holes around the rim of the projecting end, into which the plurality of strings are anchored.
Claim 6
Dependent Claim
51 words
A stringed instrument as claimed in claim 4, in which there is further provided an intermediate bridge located between the outer bridge means and the inner bridge means, the intermediate bridge having a ridge projecting above a hypothetical plane which touches the ridges of the said outer and inner bridge means.
Claim 7
Dependent Claim
25 words
A stringed instrument as claimed in claim 5, in which the intermediate bridge is in the shape of a spiral centered on said anchoring means.
Claim 8
Dependent Claim
22 words
A stringed instrument as claimed in claim 1, claim 3 or claim 5, in which the first-mentioned sounding board has openings therein.
Claim 9
Dependent Claim
31 words
A stringed instrument as claimed in claim 1, claim 3 or claim 5, in which frets are provided under each string on the said upper surface, adjacent the outer bridge means.
Claim 10
Dependent Claim
113 words
A stringed instrument comprising: a supporting body construction defining a peripheral portion and a central portion, a plurality of strings, anchoring means centrally located in said central portion, said anchoring means being adapted to receive and anchor one end of each of the said plurality of strings, peg means distributed around said peripheral frame means, adapted to receive the other ends of the strings, whereby the strings can be tightened and tuned, and whereby the forces exerted by the tightened strings on said anchoring means are substantially balanced, outer bridge means in contact with the strings adjacent the peg means, and inner bridge means in contact with the strings adjacent the anchoring means.
Claim 11
Dependent Claim
113 words
A stringed instrument comprising: a supporting body construction defining a peripheral portion and a central portion, a plurality of strings, anchoring means centrally located in said central portion, said anchoring means being adapted to receive and anchor one end of each of the said plurality of strings, peg means distributed around said peripheral frame means, adapted to receive the other ends of the strings, whereby the strings can be tightened and tuned, and whereby the forces exerted by the tightened strings on said anchoring means are substantially balanced, outer bridge means in contact with the strings adjacent the peg means, and inner bridge means in contact with the strings adjacent the anchoring means.
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) | 1984-02-10 | 1984-08-11 | 1985-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-10 | 1988-08-11 | 1989-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-10 | 1992-08-11 | 1993-02-10 | $7700.00 | Window Closed / Lapsed |