US3724919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low friction seawater lubricated bearing journal arrangement
Assignee: United States Department of the Navy
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Filing: 1971-12-28
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Granted: 1973-04-03
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Expires: 1991-12-28
Abstract
Abstract A new type of low friction bearing-journal arrangement which can be lubricated by seawater wherein the rubbing surface of a titanium journal in combination with a high density of polyethylene bearing is protected against scuffing or galling by a small concentration of iodine which may be absorbed at the bearing surface or be present as a water-soluble iodine salt or complex.
Inventors
- 👤 P Lagally
- 👤 R Nagy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:49
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/201; F16C17/00; F16C17/12; F16C17/14; F16C2202/00; F16C2202/02; F16C2208/00; F16C2208/20; F16C2208/76; F16C2208/78; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/912; Y10T; Y10T428/00; Y10T428/21; Y10T428/213; Y10T428/24; Y10T428/24025; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31696
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
24 words
A low friction bearing-journal arrangement as recited in claim 1 wherein the amount of absorbed iodine is about 0.05 percent to about 1 percent.
Claim 2
Dependent Claim
34 words
A low friction bearing-journal arrangement as recited in claim 1 wherein the high density polyethylene has a melt index from about 5.0 to about 6.0, and a density from about 0.950 to about 0.962.
Claim 3
Dependent Claim
24 words
A low friction bearing-journal arrangement as recited in claim 3 wherein tHe amount of absorbed iodine is about 0.05 percent to about 1 percent.
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) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |