US3385153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of tuning musical instruments
Assignee: CAROL E ENGLAND
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Filing: 1965-05-18
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Granted: 1968-05-28
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Expires: 1985-05-18
Abstract
No abstract record available.
Inventors
- 👤 Carol E England
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:39
CPC Classifications
G; G10; G10G; G10G7/00; G10G7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A METHOD OF TUNING STRINGED MUSICAL INSTRUMENTS WHICH COMPRISES: (A) PROVIDING A STROBOSCOPIC LIGHT SOURCE WHICH OPERATES ON A GIVEN FREQUENCY; (B) ALTERING THE EFFECTIVE VIBRATING LENGTH OF THE STRING TO BE TUNED TO A LENGTH WHICH IF THE STRING WERE AT THE DESIRED PLAYING FREQUENCY IT WOULD VIBRATE AT A RATIONAL FRACTION OF A MULTIPLE FREQUENCY OF THE STROBE LIGHT; (C) POSITIONING THE STROBE LIGHT IN ALIGNMENT WITH THE STRING TO BE TUNED; (D) ADJUSTING THE TENSION IN THE STRING TO BE TUNED SO THAT A STANDING WAVE FORM APPEARS AS VIEWED AGAINST THE STROBE LIGHT; AND (E) RETURNING THE STRING TO ITS ORIGINAL LENGTH WHEREBY THE STRING WILL THEN VIBRATE AT THE DESIRED PLAYING FREQUENCY.
Claim 2
Independent Claim
117 words
A METHOD OF TUNING STRINGED MUSICAL INSTRUMENTS WHICH COMPRISES: (A) PROVIDING A STROBOSCOPIC LIGHT SOURCE WHICH OPERATES ON A GIVEN FREQUENCY; (B) ALTERING THE EFFECTIVE VIBRATING LENGTH OF THE STRING TO BE TUNED TO A LENGTH WHICH IF THE STRING WERE AT THE DESIRED PLAYING FREQUENCY IT WOULD VIBRATE AT A RATIONAL FRACTION OF A MULTIPLE FREQUENCY OF THE STROBE LIGHT; (C) POSITIONING THE STROBE LIGHT IN ALIGNMENT WITH THE STRING TO BE TUNED; (D) ADJUSTING THE TENSION IN THE STRING TO BE TUNED SO THAT A STANDING WAVE FORM APPEARS AS VIEWED AGAINST THE STROBE LIGHT; AND (E) RETURNING THE STRING TO ITS ORIGINAL LENGTH WHEREBY THE STRING WILL THEN VIBRATE AT THE DESIRED PLAYING FREQUENCY.
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US1728003A
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US1949603A
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US1858785A
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US2007010A
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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) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |