Patent US4782732A successfully refreshed from Google Patents.
← Back to Patent Explorer
US4782732A Expired / Lapsed US ⏱️ 0.0 years remaining

Split tremolo device

Assignee: Yamaha Corp
•
Filing: 1988-03-21
•
Granted: 1988-11-08
•
Expires: 2008-03-21
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract To the end of obtaining favorable vibrato effects, provided is a tremolo device for stringed musical instruments comprising a string support assembly consisting of at least two individually pivoted segments, each individually carrying a string anchoring member, a spring for biasing the string support assembly segment in the direction for applying a tension to the string and a handle bar for pivoting the segment against the biasing force of the spring in the direction to reduce the tension of the string. By selectively or jointly moving the handle bars of the different segments, hitherto unknown special vibrato effects can be created. Optionally, a provision may be made so that the different segments may be coupled into a single body for producing conventional vibrato effects. Since the string support assembly is segmented, breakage of any single string will only affect the corresponding segment and not the other segment, the tuning process subsequent to the replacement of the broken string can be facilitated.

Inventors

  • 👤 Hisashi Kato
  • 👤 Daiji Okai
  • 👤 Nobuyuki Yoshiba
  • 👤 Yukihisa Yuasa

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 19:09
CPC Classifications
G; G10; G10D; G10D3/00; G10D3/14; G10D3/147; G10D3/153

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 90 words
A tremolo device for a stringed musical instrument, comprising: a string support assembly pivotally mounted on the musical instrument body; a plurality of bridge means mounted on the string support assembly; spring means for biasing the string support assembly in opposition to the tension of the strings; and handle means for imparting vibrato effects to the spring support assembly; the string support assembly comprising at least one individually pivoted segments, each carrying at least one of the bridge means, one of the spring means, and one of the handle means.
Claim 2
Dependent Claim 90 words
A tremolo device for a stringed musical instrument, comprising: a string support assembly pivotally mounted on the musical instrument body; a plurality of bridge means mounted on the string support assembly; spring means for biasing the string support assembly in opposition to the tension of the strings; and handle means for imparting vibrato effects to the spring support assembly; the string support assembly comprising at least one individually pivoted segments, each carrying at least one of the bridge means, one of the spring means, and one of the handle means.
Claim 3
Dependent Claim 30 words
A device as defined in claim 1, the at least two segments of the string support assembly are pivoted by a common pivot center line extending perpendicularly to the strings.
Claim 4
Dependent Claim 22 words
A device as defined in claim 2, wherein the bridge means comprise means for adjusting the length of the corresponding individual string.
Claim 5
Dependent Claim 37 words
A device as defined in claim 2, wherein the handle means comprise a plurality of lever arms, one attached to each of the different segments of the string support assembly and extending substantially parallel to the strings.
Claim 6
Dependent Claim 18 words
A device as defined in claim 4, wherein one of the lever arms is longer than the other.
Claim 7
Dependent Claim 28 words
A device as defined in claim 2, further comprising means for selectively locking together the at least two segments of the string support assembly into a single body.

References Cited (Backward Citations)

US3250167A Cited
US3479917A Cited
US4383466A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-11-08 1992-05-09 1992-11-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-11-08 1996-05-09 1996-11-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-11-08 2000-05-09 2000-11-08 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag