Patent US4690028A successfully refreshed from Google Patents.
US4690028A
Expired / Lapsed
US
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String clamping device
Assignee: STEINBERGER SOUND Corp A CORP OF NEW YORK
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Filing: 1986-04-18
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Granted: 1987-09-01
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Expires: 2006-04-18
Abstract
Abstract A clamping device for the strings of a musical instrument includes a base with stationary clamping plates and a threaded shank, movable clamping plates in opposed relation to the stationary clamping plates, nuts threaded on the shank, actuators interposed between a threaded nut and a movable clamping plate for selectively applying clamping pressure to a movable clamping plate by engaging and rotating with a threaded nut while rotating relative to a movable clamping plate for clamping a string between the movable clamping plate and the stationary clamping plate.
Inventors
- 👤 Ned Steinberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:50
CPC Classifications
G; G10; G10D; G10D1/00; G10D1/04; G10D1/05; G10D1/08; G10D3/00; G10D3/12
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
116 words
A clamping device for clamping the strings of a stringed musical instrument comprising: a base, the base including a plurality of threaded shank elements, and a plurality of spaced stationary clamping plates forming an array extending across and spaced between the strings of the musical instrument when positioned on the musical instrument; a plurality of threaded nuts, each threaded on a respective shank element; and a plurality of actuation means, each interposed between a respective threaded nut and stationary clamping plate for selectively applying clamping pressure to a string positioned between a respective actuation means and stationary clamping plate by engaging and rotating with a respective threaded nut as clamping pressure is applied to the string.
Claim 2
Dependent Claim
116 words
A clamping device for clamping the strings of a stringed musical instrument comprising: a base, the base including a plurality of threaded shank elements, and a plurality of spaced stationary clamping plates forming an array extending across and spaced between the strings of the musical instrument when positioned on the musical instrument; a plurality of threaded nuts, each threaded on a respective shank element; and a plurality of actuation means, each interposed between a respective threaded nut and stationary clamping plate for selectively applying clamping pressure to a string positioned between a respective actuation means and stationary clamping plate by engaging and rotating with a respective threaded nut as clamping pressure is applied to the string.
Claim 3
Dependent Claim
23 words
The clamping device of claim 1 wherein each threaded nut includes means for supporting the respective one of the plurality of actuation means.
Claim 4
Dependent Claim
21 words
The clamping device of claim 1 wherein each actuation means is freely rotatable and axially slidable on the respective shank element.
Claim 5
Dependent Claim
25 words
The clamping device of claim 1 wherein each threaded nut and respective actuation means include respective face means for selective frictional engagement with each other.
Claim 6
Dependent Claim
18 words
The clamping device of claim 4 wherein at least one of the face means is a rough surface.
Claim 7
Dependent Claim
15 words
The clamping device of claim 4 wherein each face means includes a generally axial surface.
Claim 8
Dependent Claim
17 words
The clamping device of claim 1 wherein the outer radial surface of each threaded nut is knurled.
Claim 9
Dependent Claim
14 words
The clamping device of claim 1 wherein each actuation means includes a lever portion.
Claim 10
Dependent Claim
28 words
The clamping device of claim 1 wherein the plurality of threaded shank elements constitute portions of a single threaded shank extending through each of the stationary clamping plates.
Claim 11
Dependent Claim
18 words
The clamping device of claim 1 wherein the base includes an integral string nut for the musical instrument.
Claim 12
Dependent Claim
156 words
A clamping device for clamping the strings of a stringed musical instrument comprising: a base, the base including a plurality of threaded shank elements, and a plurality of spaced stationary clamping plates forming an array extending across and spaced between the strings of the musical instrument when positioned on the musical instrument; a plurality of threaded nuts, each threaded on a respective shank element; a plurality of movable clamping plates each in opposed relation to a respective stationary clamping plate, each movable clamping plate freely slidable relative to the threaded shank elements; and a plurality of actuation means, each interposed between a respective threaded nut and movable clamping plate for selectively applying clamping pressure to a respective movable clamping plate by engaging and rotating with a respective threaded nut while rotating relative to a respective movable clamping plate for clamping a string between each of a respective movable clamping plate and a respective stationary clamping plate.
Claim 13
Dependent Claim
156 words
A clamping device for clamping the strings of a stringed musical instrument comprising: a base, the base including a plurality of threaded shank elements, and a plurality of spaced stationary clamping plates forming an array extending across and spaced between the strings of the musical instrument when positioned on the musical instrument; a plurality of threaded nuts, each threaded on a respective shank element; a plurality of movable clamping plates each in opposed relation to a respective stationary clamping plate, each movable clamping plate freely slidable relative to the threaded shank elements; and a plurality of actuation means, each interposed between a respective threaded nut and movable clamping plate for selectively applying clamping pressure to a respective movable clamping plate by engaging and rotating with a respective threaded nut while rotating relative to a respective movable clamping plate for clamping a string between each of a respective movable clamping plate and a respective stationary clamping plate.
Claim 14
Dependent Claim
25 words
The clamping device of claim 11 wherein each movable clamping plate includes means for preventing rotation of the movable clamping plate relative to the base.
Claim 15
Dependent Claim
73 words
The clamping device of claim 11 also including a plurality of stops, and wherein each threaded shank element extends between a respective one of the plurality of stops and a respective one of the plurality of stationary clamping plates, and wherein each respective threaded nut, actuation means and movable clamping plate are interposed between a respective one of the plurality of stops and a respective one of the plurality of stationary clamping plates.
Claim 16
Dependent Claim
32 words
The clamping device of claim 13 wherein each actuation means includes an aperture, and each threaded nut includes a radial surface complementary to the respective aperture for supporting the respective actuation means.
Claim 17
Dependent Claim
31 words
The clamping device of clain 13 wherein each actuation means includes an aperture and each threaded nut includes a step complementary to the respective aperture for supporting the respective actuation means.
Claim 18
Dependent Claim
31 words
The clamping device of clain 13 wherein each actuation means includes an aperture and each threaded nut includes a step complementary to the respective aperture for supporting the respective actuation means.
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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) | 1990-08-31 | 1991-03-02 | 1991-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-31 | 1995-03-02 | 1995-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-31 | 1999-03-02 | 1999-09-01 | $7700.00 | Window Closed / Lapsed |