US4475432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
String-clamping means
Assignee: Fender Musical Instruments Corp
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Filing: 1981-10-26
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Granted: 1984-10-09
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Expires: 2001-10-26
Abstract
Abstract The nut of a guitar includes several separate string-clamping blocks forming a row extending laterally of the guitar strings with each string being fitted between adjacent blocks. A bolt extending through the blocks has an enlarged head engaging the block at one end of the row and is threaded into the block at the other end of the row. Turning of the bolt in one sense tends to move the end blocks toward each other, thereby clamping the strings between the blocks and preventing movement of the strings across the nut as the guitar is played. The bridge of the guitar includes a movable bridge mounting plate which can be manipulated so as to produce a tremulous tone effect. The low friction pivot mounting for the bridge mounting plate consists of a sharpened end of the plate received in a transverse groove of a mounting flange. Alternatively the bridge mounting plate can be locked in fixed position relative to the remainder of the guitar body. The guitar strings are anchored closely adjacent to the bridge mounting plate and closely adjacent to the points where they cross the bridge to reduce the possibility that they will slide across the bridge as the guitar is played.
Inventors
- 👤 Paul F. Stroh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:23
CPC Classifications
G; G10; G10D; G10D1/00; G10D1/04; G10D1/05; G10D1/08; G10D3/00; G10D3/12
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
241 words
In a guitar-like musical instrument, a head end portion and a body end portion, several elongated, generally parallel, transversely spaced strings, means for anchoring the opposite end portions of said strings at said head and body end portions, respectively, a neck portion having an upper surface forming a fingerboard, a nut portion between said head and neck portions for maintaining said strings a desired distance above the fingerboard, means for clamping said strings closely adjacent to said nut portion and including several upright, separate, string-clamping block portions forming a row extending transversely of said strings, each of a plurality of individual strings being fitted between adjacent block portions, and means guiding said block portions for movement toward each other so as to clamp firmly the strings fitted therebetween and away from each other so as to release said strings in the area of said nut portion while said strings remain anchored at said head and body portions, said clamping means including block-moving means engageable against said block portions at opposite ends of said row, respectively, for effecting such relative movement of said block portions toward each other and releasable for permitting relative movement of said block portions away from each other, said block-moving means being disposed entirely below said strings in the area of said nut portion so that, with said block-moving means released, said strings can be moved upward from between said block portions without interference from said block-moving means.
Claim 2
Dependent Claim
241 words
In a guitar-like musical instrument, a head end portion and a body end portion, several elongated, generally parallel, transversely spaced strings, means for anchoring the opposite end portions of said strings at said head and body end portions, respectively, a neck portion having an upper surface forming a fingerboard, a nut portion between said head and neck portions for maintaining said strings a desired distance above the fingerboard, means for clamping said strings closely adjacent to said nut portion and including several upright, separate, string-clamping block portions forming a row extending transversely of said strings, each of a plurality of individual strings being fitted between adjacent block portions, and means guiding said block portions for movement toward each other so as to clamp firmly the strings fitted therebetween and away from each other so as to release said strings in the area of said nut portion while said strings remain anchored at said head and body portions, said clamping means including block-moving means engageable against said block portions at opposite ends of said row, respectively, for effecting such relative movement of said block portions toward each other and releasable for permitting relative movement of said block portions away from each other, said block-moving means being disposed entirely below said strings in the area of said nut portion so that, with said block-moving means released, said strings can be moved upward from between said block portions without interference from said block-moving means.
Claim 3
Dependent Claim
139 words
In a guitar-like musical instrument, a head end portion and a body end portion, several elongated, generally parallel, transversely spaced strings, means for anchoring the opposite end portions of said strings at said head and body end portions, respectively, a neck portion having an upper surface forming a fingerboard, a nut portion between said head and neck portions for maintaining said strings a desired distance above the fingerboard, several separate string-clamping blocks forming a row extending transversely of said strings closely adjacent to said nut portion, each of a plurality of individual strings being fitted between adjacent blocks, said blocks being relatively movable toward each other so as to clamp firmly the strings fitted therebetween, and one and only one bolt extending through said blocks and turnable for effecting such relative movement of said blocks to clamp said strings.
Claim 4
Dependent Claim
139 words
In a guitar-like musical instrument, a head end portion and a body end portion, several elongated, generally parallel, transversely spaced strings, means for anchoring the opposite end portions of said strings at said head and body end portions, respectively, a neck portion having an upper surface forming a fingerboard, a nut portion between said head and neck portions for maintaining said strings a desired distance above the fingerboard, several separate string-clamping blocks forming a row extending transversely of said strings closely adjacent to said nut portion, each of a plurality of individual strings being fitted between adjacent blocks, said blocks being relatively movable toward each other so as to clamp firmly the strings fitted therebetween, and one and only one bolt extending through said blocks and turnable for effecting such relative movement of said blocks to clamp said strings.
Claim 5
Dependent Claim
40 words
In the instrument defined in claim 2, one end portion of the bolt having an enlarged head engageable against the block at one end of the row, said head being adapted to be turned manually without the use of tools.
Claim 6
Dependent Claim
30 words
In the instrument defined in claim 2, a channel recessed into the upper surface of the instrument in the area of the nut portion and receiving the row of blocks.
Claim 7
Dependent Claim
25 words
In the instrument defined in claim 4, the shape of at least one of the blocks being substantially complementary to the shape of the channel.
Claim 8
Dependent Claim
36 words
In the instrument defined in claim 4, at least one lateral side of the channel being undercut and at least one of the blocks having a projecting portion received in said undercut side of the channel.
Claim 9
Dependent Claim
19 words
In the instrument defined in claim 4, at least one of the blocks being rigidly secured to the channel.
References Cited (Backward Citations)
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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) | 1987-10-09 | 1988-04-09 | 1988-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-09 | 1992-04-09 | 1992-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-09 | 1996-04-09 | 1996-10-09 | $7700.00 | Window Closed / Lapsed |