US4385543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable bridge for a stringed musical instrument
Assignee: Norlin Industries Inc
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Filing: 1981-06-22
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Granted: 1983-05-31
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Expires: 2001-06-22
Abstract
Abstract An adjustable bridge for a stringed musical instrument which bridge has a bridge saddle mounting member and adjusts string height by providing a means for wedging this member up or down. Means are also provided for moving this member forward and backward to adjust intonation and to adjust the spacing between adjacent strings.
Inventors
- 👤 Timothy Shaw
- 👤 Charles T. Burge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:23
CPC Classifications
G; G10; G10D; G10D3/00; G10D3/04
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
72 words
A bridge for a stringed musical instrument comprising: a bridge base: a bridge saddle for each string of the instrument: means for mounting each of said bridge saddles in a manner such that it may be independently moved up and down relative to said bridge base: and wedge shaped means adapted to coact with a surface of each of said means for mounting to control the height of the corresponding bridge saddle.
Claim 2
Dependent Claim
72 words
A bridge for a stringed musical instrument comprising: a bridge base: a bridge saddle for each string of the instrument: means for mounting each of said bridge saddles in a manner such that it may be independently moved up and down relative to said bridge base: and wedge shaped means adapted to coact with a surface of each of said means for mounting to control the height of the corresponding bridge saddle.
Claim 3
Dependent Claim
61 words
A bridge as claimed in claim 1 wherein said wedge means includes a wedge member mounted between each of said means for mounting and said bridge base, and means for independently moving each wedge member forward and backward relative to the corresponding means for mounting to cause said means for mounting, and thus said bridge saddle to be raised or lowered.
Claim 4
Dependent Claim
27 words
A bridge as claimed in claim 2 wherein a surface of each means for mounting which is in contact with the corresponding wedge member is wedge shaped.
Claim 5
Dependent Claim
84 words
A bridge as claimed in claim 3 wherein the width of each means for mounting and of the corresponding wedge member are substantially the same, wherein each wedge member has a wedge shaped surface in contact with the wedge shaped surface of the means for mounting, and wherein the widths of the wedge shaped surfaces are substantially the same as the widths of the respective means and members, whereby the area of contact between the means for mounting and the wedge member is maximized.
Claim 6
Dependent Claim
54 words
A bridge as claimed in claim 4 wherein said base, means for mounting and wedge member are all formed of metal; and wherein there is solid metal contact between the base of each wedge member and said bridge base, whereby solid metal contact is maintained between each means for mounting and said bridge base.
Claim 7
Dependent Claim
105 words
A bridge as claimed in claim 2 including, for each bridge saddle, a guide member mounted on said bridge base and fixed at one end so as to permit said means for mounting to move up or down relative to it but to permit relative motions in no other directions; and a nut fixedly mounted in the other end of said guide member and adapted for rotation therein; said wedge member being mounted on said guide member and having a screw projecting from the rear thereof which screw coacts with said nut when said nut is rotated to move the wedge member forward or backward.
Claim 8
Dependent Claim
49 words
A bridge as claimed in claim 6 including means for independently moving each means for mounting, along with all the elements associated therewith including the bridge saddle, wedge member, guide member and nut, in the forward and backward directions, whereby the intonations of each string may be individually adjusted.
Claim 9
Dependent Claim
48 words
A bridge as claimed in claim 1 including means operative for independently moving each means for mounting, along with all the elements associated therewith including the bridge saddle and the wedge means, in the forward and backward directions, whereby the intonations of each string may be individually adjusted.
Claim 10
Dependent Claim
59 words
A bridge as claimed in claim 8 wherein each bridge saddle is a circular nut having a string receiving ridge formed in its periphery; and wherein said means for mounting includes a screw mounted perpendicular to the corresponding string, said bridge saddle nut being mounted to rotate on the screw, whereby the spacing between strings may be individually adjusted.
Claim 11
Dependent Claim
59 words
A bridge as claimed in claim 1 wherein each bridge saddle is a circular nut having a string receiving ridge formed in its periphery; and wherein said means for mounting includes a screw mounted perpendicular to the corresponding string, said bridge saddle nut being mounted to rotate on the screw, whereby the spacing between strings may be individually adjusted.
Claim 12
Dependent Claim
103 words
A bridge for a stringed musical instrument comprising: a bridge base; and a bridge assembly for each string of the instrument, each of said bridge assemblies including a bridge saddle, means for mounting said bridge saddle in a manner such that it may be pivoted up or down relative to said bridge base, a wedge member positioned between said means for mounting and said bridge base, and means for moving said wedge member relative to said means for mounting in a manner so as to raise or lower said means for mounting, whereby the height of each bridge saddle may be independently controlled.
Claim 13
Dependent Claim
103 words
A bridge for a stringed musical instrument comprising: a bridge base; and a bridge assembly for each string of the instrument, each of said bridge assemblies including a bridge saddle, means for mounting said bridge saddle in a manner such that it may be pivoted up or down relative to said bridge base, a wedge member positioned between said means for mounting and said bridge base, and means for moving said wedge member relative to said means for mounting in a manner so as to raise or lower said means for mounting, whereby the height of each bridge saddle may be independently controlled.
Claim 14
Dependent Claim
28 words
A bridge as claimed in claim 11 including means for independently moving each bridge assembly forward and backward whereby the intonation of each string may be independently adjusted.
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) | 1986-05-30 | 1986-11-29 | 1987-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-30 | 1990-11-29 | 1991-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-30 | 1994-11-29 | 1995-05-31 | $7700.00 | Window Closed / Lapsed |