US4539228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of extending useful life of instrument strings
Assignee: Individual
•
Filing: 1984-10-29
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Granted: 1985-09-03
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Expires: 2004-10-29
Abstract
Abstract The microscopic pores, cavities and crevices of the strings and the interstices of a wound string are filled with dry lubricant particles using a moisture displacing agent and rust inhibitor as a carrier for the dry lubricant. This provides lubrication and inhibits corrosion, thus shortening initial break in periods and extending string life.
Inventors
- 👤 Arnold Lazarus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:20
CPC Classifications
G; G10; G10D; G10D3/00; G10D3/10; B; B05; B05D; B05D7/00; B05D7/20; B05D2202/00; B05D3/00; B05D3/04; B05D3/0493; B05D7/22; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
50 words
A method of treating metal musical instrument strings including wound strings to reduce break-in period and extend useful lifetime comprising the steps of cleaning said strings to remove abrasive particles, and fill microscopic pores, cavities and crevices of the strings and the interstices of wound strings with dry lubricant particles.
Claim 2
Independent Claim
50 words
A method of treating metal musical instrument strings including wound strings to reduce break-in period and extend useful lifetime comprising the steps of cleaning said strings to remove abrasive particles, and fill microscopic pores, cavities and crevices of the strings and the interstices of wound strings with dry lubricant particles.
Claim 3
Dependent Claim
24 words
A method as defined in claim 1 including the step of saturating the lubricated string with a liquid moisture displacing agent and corrosion inhibitor.
Claim 4
Dependent Claim
53 words
A method as defined in claim 2 wherein the steps of filling with dry lubricant and saturating with a liquid moisture displacing agent and corrosion inhibitor are combined into a single step by placing said lubricating particles in suspension in said liquid, thus using said liquid as a carrier for said dry lubricant.
Claim 5
Dependent Claim
60 words
A method as defined in claim 3 including the step of subjecting said strings to a surrounding atmosphere below ambient pressure to facilitate the escape of air from pores, cavities, crevices and interstices, and immersing said strings in said liquid with said particles in suspension while the atmosphere to which said strings are subjected is maintained to low ambient pressure.
Claim 6
Dependent Claim
54 words
A method as defined in claim 3 wherein said liquid with lubricating particles is applied by soaking said strings in a bath of said liquid with said particles in suspension for an extended period sufficient for the free atmosphere pressure will cause said liquid and particles to penetrate said pores, cavities, crevices and interstices.
Claim 7
Dependent Claim
46 words
A method as defined in claim 1, 2, 3, 4 or 5 including the step of providing longitudinal grooves on the surface of a metal core of said string when wound to allow for more lubricating particles to be stored between said core and windings thereon.
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) | 1988-09-02 | 1989-03-04 | 1989-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-02 | 1993-03-04 | 1993-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-02 | 1997-03-04 | 1997-09-03 | $7700.00 | Window Closed / Lapsed |