US5542330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-tuner bridge for stringed musical instruments
Assignee: WIBISONO ALI SUGIHARTO
•
Filing: 1993-12-22
•
Granted: 1996-08-06
•
Expires: 2013-12-22
Abstract
Abstract A bridge device is provided for a stringed musical instrument having a body, a neck extending from the body, and a set of tensioned strings extending along the neck and over at least a portion of the body. The bridge device comprises a bridge plate mounted adjacent a front surface of the body, a plurality of saddles secured to the bridge plate, and a plurality of armatures pivotably secured to the bridge plate. The saddles are individually adjustable to vary the effective length height of each of the strings and to vary the distance between each of the strings from the bridge plate. Each of the armatures individually engage the strings and are selectively manipulable to change the tension of each of the strings between one of three predetermined tension levels.
Inventors
- 👤 David J. Borisoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:33
CPC Classifications
G; G10; G10D; G10D3/00; G10D3/14; G10D3/147
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
148 words
A bridge device for a stringed musical instrument having a plurality of strings and a mounting surface, comprising: a plurality of armatures pivotally secured to said mounting surface of said instrument and respectively engaging one of said strings; and a plurality of lever arms having a handle portion and a nose portion; pivoting means for pivotally securing said lever arms to respective ones of said armatures; and said nose portions including positioning means for contacting said surface at a plurality of contact positions rotatably secured to said pivoting means; said handle portions including manipulating means for individually manipulating said handle portions to a plurality of positions corresponding respectively to said contact positions wherein a plurality of tensions may be applied to a respectively engaged one of said strings by rotating said handle portion of a respective one of said lever arms to one of said predetermined contact positions.
Claim 2
Dependent Claim
148 words
A bridge device for a stringed musical instrument having a plurality of strings and a mounting surface, comprising: a plurality of armatures pivotally secured to said mounting surface of said instrument and respectively engaging one of said strings; and a plurality of lever arms having a handle portion and a nose portion; pivoting means for pivotally securing said lever arms to respective ones of said armatures; and said nose portions including positioning means for contacting said surface at a plurality of contact positions rotatably secured to said pivoting means; said handle portions including manipulating means for individually manipulating said handle portions to a plurality of positions corresponding respectively to said contact positions wherein a plurality of tensions may be applied to a respectively engaged one of said strings by rotating said handle portion of a respective one of said lever arms to one of said predetermined contact positions.
Claim 3
Dependent Claim
40 words
The device of claim 1, wherein said positioning means comprises each of said nose portions of each of said lever arms having a contoured position adapted to contact said surface at a first one of said plurality of contact positions.
Claim 4
Dependent Claim
47 words
The device of claim 3, wherein each of said armatures includes pivot means for pivoting the same, said positioning means further includes a tuning screw adjustably secured on each of said pivot means to contact said surface at a second one of said plurality of contact positions.
Claim 5
Dependent Claim
32 words
The device of claim 3, further including a second tuning screw adjustably secured on each of said armatures to contact said surface at a third one of said plurality of contact positions.
Claim 6
Dependent Claim
82 words
The device of claim 4, wherein said manipulating means includes each of said handle portions being manipulable to said first one of said contact positions engaging said nose portion to said surface, to said second one of said contact positions engaging said nose portion and said first tuning screw to said surface, and to said third one of said contact positions engaging said second tuning screw to said surface and disengaging said nose portion and said first tuning screw from said surface.
Claim 7
Dependent Claim
117 words
A bridge device for a stringed musical instrument having a plurality of strings and a mounting surface, comprising: a plurality of armatures pivotally secured to said mounting surface of said instrument and respectively engaging one of said strings; and a plurality of lever arms pivotally secured to respective ones of said armatures each including a handle portion; and said lever arms including positioning means, coupled to respective ones of said plurality of lever arms, and rotatable therewith to a plurality of positions in response to corresponding rotation of said handle portion, for contacting said surface at a plurality of contact positions; wherein a plurality of tensions may be applied to a respectively engaged one of said strings.
Claim 8
Dependent Claim
117 words
A bridge device for a stringed musical instrument having a plurality of strings and a mounting surface, comprising: a plurality of armatures pivotally secured to said mounting surface of said instrument and respectively engaging one of said strings; and a plurality of lever arms pivotally secured to respective ones of said armatures each including a handle portion; and said lever arms including positioning means, coupled to respective ones of said plurality of lever arms, and rotatable therewith to a plurality of positions in response to corresponding rotation of said handle portion, for contacting said surface at a plurality of contact positions; wherein a plurality of tensions may be applied to a respectively engaged one of said strings.
Claim 9
Dependent Claim
76 words
The device of claim 6, wherein each of said positioning means is rotatable to one of three a first one of said contact positions, a second one of said contact positions, and a third one of said contact positions, corresponding to a first preset position of a respective one of said armatures, a second preset position of a respective one of said armatures, and a third preset position of a respective one of said armatures, respectively.
References Cited (Backward Citations)
US1010240A
Cited
US2046331A
Cited
US2313969A
Cited
US2897711A
Cited
US3599524A
Cited
US4608904A
Cited
US4535670A
Cited
US4686883A
Cited
US4779506A
Cited
US4867031A
Cited
US4823669A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-08-06 | 2000-02-05 | 2000-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-08-06 | 2004-02-05 | 2004-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-08-06 | 2008-02-05 | 2008-08-06 | $7700.00 | Window Closed / Lapsed |