Patent US3974730A successfully refreshed from Google Patents.
US3974730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guitar strut assembly
Assignee: Individual
•
Filing: 1975-08-08
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Granted: 1976-08-17
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Expires: 1995-08-08
Abstract
Abstract A guitar having a body with a pair of intersecting cross braces secured to the underside of the face thereof. A pair of struts are connected to the arms of each cross brace adjacent the sound hole in the face of the guitar. Each strut has one end connected to the arm of one of the cross braces adjacent the sound hole. Each strut extends toward the head of the body in a direction from the face toward the back. The other end of each strut is disclosed in one embodiment as connected to a vertical brace secured to the rim of the guitar. In other embodiments, the lowermost end of each strut is connected to a neck block. In a further embodiment, the lowermost end of each strut is connected to a transverse brace which is secured to the internal surface of the back of the guitar. In a still further embodiment, the struts are adjustable so that their length and position of securement on the cross brace or other parts of the body of the guitar can be varied.
Inventors
- 👤 Andrew Borden Adams, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:55
CPC Classifications
G; G10; G10D; G10D1/00; G10D1/04; G10D1/05; G10D1/08
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
285 words
A guitar comprising a body, said body comprising: an apertured face, a back spaced from said face, a rim interconnecting said face and said back, and bracing means, said bracing means comprising: a pair of cross braces secured to the interior surface of said face and arranged as a cross with an arm of one of said cross braces disposed to one side of the aperture in said face and an arm of the other of said cross braces disposed to the other side of the aperture in said face, and the point of intersection of said cross braces lying between the aperture in said face and the tail of the body, a first and a second substantially vertically extending brace, said first vertical brace being secured to the interior surface of the rim to one side of the body at a location between the center of the aperture in the face and the head of the body and said second vertical brace being secured to the interior surface pf the rim to the side of the body opposite said one side of said body at a location between the center of the aperture in the face and the head of the body, and a pair of struts, one of said struts having one end thereof secured to the first vertical brace on said one said of said body and the other end thereof secured to the arm of the cross brace on that side, and the other one of said struts having one end thereof secured to the second vertical brace on said other side of said body and the other end thereof secured to the arm of the cross brace on that side.
Claim 2
Dependent Claim
285 words
A guitar comprising a body, said body comprising: an apertured face, a back spaced from said face, a rim interconnecting said face and said back, and bracing means, said bracing means comprising: a pair of cross braces secured to the interior surface of said face and arranged as a cross with an arm of one of said cross braces disposed to one side of the aperture in said face and an arm of the other of said cross braces disposed to the other side of the aperture in said face, and the point of intersection of said cross braces lying between the aperture in said face and the tail of the body, a first and a second substantially vertically extending brace, said first vertical brace being secured to the interior surface of the rim to one side of the body at a location between the center of the aperture in the face and the head of the body and said second vertical brace being secured to the interior surface pf the rim to the side of the body opposite said one side of said body at a location between the center of the aperture in the face and the head of the body, and a pair of struts, one of said struts having one end thereof secured to the first vertical brace on said one said of said body and the other end thereof secured to the arm of the cross brace on that side, and the other one of said struts having one end thereof secured to the second vertical brace on said other side of said body and the other end thereof secured to the arm of the cross brace on that side.
Claim 3
Dependent Claim
20 words
A guitar as claimed in claim 1, wherein: the positions of securement of the ends of said struts are adjustable.
Claim 4
Dependent Claim
96 words
A guitar as claimed in claim 1 wherein: said one strut has its one end secured to an intermediate portion of said first vertical brace on said one side of said body and its other end secured to an intermediate portion of the arm of the cross brace on that side, and said other strut has its one end secured to an intermediate portion of said second vertical brace on said opposite side of said body and its other end secured to an intermediate portion of the arm of the other cross brace on that side.
Claim 5
Dependent Claim
20 words
A guitar as claimed in claim 1, wherein: said vertical braces extend over substantially the entire width of the rim.
Claim 6
Dependent Claim
33 words
A guitar as claimed in claim 4, wherein: said bracing means further comprises a first transverse brace secured to the interior surface of the back and directly interconnecting the pair of vertical braces.
Claim 7
Dependent Claim
32 words
A guitar as claimed in claim 5, wherein: said bracing means further comprises a second transverse brace secured to the underside of the face and directly interconnecting the pair of vertical braces.
Claim 8
Dependent Claim
198 words
A guitar comprising a body, said body comprising: an apertured face, a back spaced from said face, a rim interconnecting said face and said back, a neck block at the head of the body, bracing means, said bracing means comprising: a pair of cross braces secured to the interior surface of said face and arranged as a cross with an arm of one of said cross braces disposed to one side of the aperture in said face and an arm of the other of said cross braces disposed to the other side of the aperture in said face, and the point of intersection of said cross braces lying between the aperture in said face and the tail of the body, and a pair of struts, one of said struts having one end thereof secured to the neck block and the other end thereof secured to the arm of the cross brace disposed to one side of the aperture, and the other one of the struts having one end thereof secured to the neck block and the other end thereof secured to the arm of the cross brace disposed to the other side of the aperture in said face.
Claim 9
Dependent Claim
198 words
A guitar comprising a body, said body comprising: an apertured face, a back spaced from said face, a rim interconnecting said face and said back, a neck block at the head of the body, bracing means, said bracing means comprising: a pair of cross braces secured to the interior surface of said face and arranged as a cross with an arm of one of said cross braces disposed to one side of the aperture in said face and an arm of the other of said cross braces disposed to the other side of the aperture in said face, and the point of intersection of said cross braces lying between the aperture in said face and the tail of the body, and a pair of struts, one of said struts having one end thereof secured to the neck block and the other end thereof secured to the arm of the cross brace disposed to one side of the aperture, and the other one of the struts having one end thereof secured to the neck block and the other end thereof secured to the arm of the cross brace disposed to the other side of the aperture in said face.
Claim 10
Dependent Claim
20 words
A guitar as claimed in claim 7, wherein: the positions of securement of the ends of the struts are adjustable.
Claim 11
Dependent Claim
71 words
A guitar as claimed in claim 7, wherein: said one strut has its other end secured to an intermediate portion of the arm of the cross brace disposed to one side of the aperture in said face, and the other one of said struts has its other end secured to an intermediate portion of the arm of the cross brace disposed to the other side of the aperture in said face.
Claim 12
Dependent Claim
29 words
A guitar as claimed in claim 9, wherein: the one end of each of said struts is secured to the end of the neck block closest to said back.
Claim 13
Dependent Claim
57 words
A guitar as claimed in claim 10, wherein: the one end of said one strut is secured to the side of the neck block corresponding to said one side of said aperture, and the one end of said other strut is secured to the side of the neck block corresponding to said other side of said aperture.
Claim 14
Dependent Claim
232 words
A guitar comprising a body, said body comprising: an apertured face, a back spaced from said face, a rim interconnecting said face and said back, and bracing means, said bracing means comprising: a pair of cross braces secured to the interior surface of said face and arranged as a cross with an arm of one of said cross braces disposed to one side of the aperture in said face and an arm of the other of said cross braces disposed to the other side of the aperture in said face, and the point of intersection of said cross braces lying between the aperture in said face and the tail of the body, a transverse brace secured to the interior surface of the back at a location between the head of the body and a portion of the back lying in a plane, substantially perpendicular to the back, through the center of aperture in the face, and a pair of struts having one end thereof secured to the transverse brace and the other end thereof secured to the arm of the cross brace disposed to one side of the aperture in said face, and the other one of said struts having one end thereof secured to the transverse brace and the other end thereof secured to the arm of the cross brace disposed to the other side of the aperture in said face.
Claim 15
Dependent Claim
232 words
A guitar comprising a body, said body comprising: an apertured face, a back spaced from said face, a rim interconnecting said face and said back, and bracing means, said bracing means comprising: a pair of cross braces secured to the interior surface of said face and arranged as a cross with an arm of one of said cross braces disposed to one side of the aperture in said face and an arm of the other of said cross braces disposed to the other side of the aperture in said face, and the point of intersection of said cross braces lying between the aperture in said face and the tail of the body, a transverse brace secured to the interior surface of the back at a location between the head of the body and a portion of the back lying in a plane, substantially perpendicular to the back, through the center of aperture in the face, and a pair of struts having one end thereof secured to the transverse brace and the other end thereof secured to the arm of the cross brace disposed to one side of the aperture in said face, and the other one of said struts having one end thereof secured to the transverse brace and the other end thereof secured to the arm of the cross brace disposed to the other side of the aperture in said face.
Claim 16
Dependent Claim
20 words
A guitar as claimed in claim 12, wherein: the positions of securement of the ends of the struts are adjustable.
Claim 17
Dependent Claim
71 words
A guitar as claimed in claim 12, wherein: said one strut has its other end secured to an intermediate portion of the arm of the cross brace disposed to one side of the aperture in said face, and the other one of said struts has its other end secured to an intermediate portion of the arm of the cross brace disposed to the other side of the aperture in said face.
Claim 18
Dependent Claim
76 words
A guitar a claimed in claim 14, wherein: said one strut has its one end secured to a portion of said transverse brace to the same side of the body as said one side of the aperture in said face, and the other one of said struts has its one end secured to a portion of said transverse brace to the same side of the body as said other side of the aperture in said face.
Claim 19
Dependent Claim
57 words
A guitar as claimed in claim 12, wherein: said transverse brace extends completely across the interior surface of said back, and said bracing means further comprises a first and a second substantially vertically extending brace secured to the rim, each of said vertically extending braces having one end secured to a respective end of the transverse brace.
Claim 20
Dependent Claim
49 words
A guitar as claimed in claim 16, wherein: said bracing means further comprises a second transverse brace secured to the underside of the face and extending completely thereacross, and the other end of each of said vertical braces is secured to a respective end of the second transverse brace.
Claim 21
Dependent Claim
245 words
A guitar comprising a body, said body comprising: an apertured face, a back spaced from said face, a rim interconnecting said face and said back, and bracing means, said bracing means comprising: a pair of cross braces secured to the interior surface of said face and arranged as a cross with an arm of one of said cross braces disposed to one side of the aperture in said face and an arm of the other of said cross braces disposed to the other side of the aperture in said face, and the point of intersection of said cross braces lying between the aperture in said face and the tail of the body, and a pair of struts, one of said struts having one end thereof secured to the arm of the cross brace disposed to one side of the aperture in said face, said one strut extending from its securement at its one end in a direction toward the head of the body and from said face toward said back, and having the other end thereof secured to the body, the other of said struts having one end thereof secured to the arm of the cross brace disposed to the other side of the aperture in said face, said other strut extending from its securement at its one end in a direction toward the head of the body and from said face toward said back and having the other end thereof secured to the body.
Claim 22
Dependent Claim
245 words
A guitar comprising a body, said body comprising: an apertured face, a back spaced from said face, a rim interconnecting said face and said back, and bracing means, said bracing means comprising: a pair of cross braces secured to the interior surface of said face and arranged as a cross with an arm of one of said cross braces disposed to one side of the aperture in said face and an arm of the other of said cross braces disposed to the other side of the aperture in said face, and the point of intersection of said cross braces lying between the aperture in said face and the tail of the body, and a pair of struts, one of said struts having one end thereof secured to the arm of the cross brace disposed to one side of the aperture in said face, said one strut extending from its securement at its one end in a direction toward the head of the body and from said face toward said back, and having the other end thereof secured to the body, the other of said struts having one end thereof secured to the arm of the cross brace disposed to the other side of the aperture in said face, said other strut extending from its securement at its one end in a direction toward the head of the body and from said face toward said back and having the other end thereof secured to the body.
Claim 23
Dependent Claim
68 words
A guitar as claimed in claim 18, wherein: said one strut has its one end connected to an intermediate portion of the arm of the cross brace disposed to one side of the aperture in said face, and said other strut has its one end connected to an intermediate portion of the arm of the cross brace disposed to the other side of the aperture in said face.
Claim 24
Dependent Claim
168 words
A guitar comprising a body, said body comprising: an apertured face, a back spaced from said face, a rim interconnecting said face and said back, and bracing means, said bracing means comprising: a pair of cross braces secured to the interior surface of said face and arranged as a cross with an arm of one of said cross braces disposed to one side of the aperture in said face and an arm of the other of said cross braces disposed to the other side of the aperture in said face, and the point of intersection of said cross braces lying between the aperture in said face and the tail of the body, and at least one strut, said strut having one end secured to the arm of one of the cross braces, said strut extending from its securement at its one end in a direction toward the head of the body and from said face toward said back and having the other end thereof secured to the body.
Claim 25
Dependent Claim
168 words
A guitar comprising a body, said body comprising: an apertured face, a back spaced from said face, a rim interconnecting said face and said back, and bracing means, said bracing means comprising: a pair of cross braces secured to the interior surface of said face and arranged as a cross with an arm of one of said cross braces disposed to one side of the aperture in said face and an arm of the other of said cross braces disposed to the other side of the aperture in said face, and the point of intersection of said cross braces lying between the aperture in said face and the tail of the body, and at least one strut, said strut having one end secured to the arm of one of the cross braces, said strut extending from its securement at its one end in a direction toward the head of the body and from said face toward said back and having the other end thereof secured to the body.
Claim 26
Dependent Claim
27 words
A guitar as claimed in claim 20, wherein: said strut has its one end connected to an intermediate portion of the arm of said one cross brace.
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) | 1979-08-17 | 1980-02-16 | 1980-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-17 | 1984-02-16 | 1984-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-17 | 1988-02-16 | 1988-08-17 | $7700.00 | Window Closed / Lapsed |