US3248788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Application of flame-sprayed linings on the inside diameter of tubes
Assignee: Lockheed Martin Corp
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Filing: 1962-11-21
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Granted: 1966-05-03
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Expires: 1982-11-21
Abstract
No abstract record available.
Inventors
- 👤 Marey B Goldstein
- 👤 Robert A Mckinney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:50
CPC Classifications
C; C23; C23C; C23C4/00; C23C4/18; C23C4/185; C23C24/00; C23C4/12; C23C4/14; C23C4/16; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4981; Y10T29/49812; Y10T29/49826; Y10T29/49885; Y10T29/4998; Y10T29/49982
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A METHOD OF PROVIDING A NON-METALLIC FLAME-SPRAYED LINING WITHIN A TUBULAR MEMBER OF CONSIDERABLE LENGTH AND OF RELATIVELY SMALL DIAMETER AND OF A MATERIAL OF A LOWER COEFFICIENT OF EXPANSION THAN THE FLAME SPRAYED LINING COMPRISING: FLAME-SPRAYING A COATING OF DESIRED NON-METALLIC MATERIAL ON A MANDREL OF LIKE CONFIGURATION TO SAID TUBULAR MEMBER, MACHINING SAID COATED MANDREL TO A DIAMETER SLIGHTLY IN EXCESS OF THE INNER DIAMETER OF SAID TUBULAR MEMBER, PRESS FITTING SAID MACHINED, COATED, MANDREL WITHIN SAID TUBULAR MEMBER, AND DECOMPOSING SAID MANDREL WHEREBY SAID FLAME-SPRAYED NON-METALLIC COATING REMAINS AFFIXED TO THE INNER SURFACE OF SAID TUBULAR MEMBER.
Claim 2
Independent Claim
100 words
A METHOD OF PROVIDING A NON-METALLIC FLAME-SPRAYED LINING WITHIN A TUBULAR MEMBER OF CONSIDERABLE LENGTH AND OF RELATIVELY SMALL DIAMETER AND OF A MATERIAL OF A LOWER COEFFICIENT OF EXPANSION THAN THE FLAME SPRAYED LINING COMPRISING: FLAME-SPRAYING A COATING OF DESIRED NON-METALLIC MATERIAL ON A MANDREL OF LIKE CONFIGURATION TO SAID TUBULAR MEMBER, MACHINING SAID COATED MANDREL TO A DIAMETER SLIGHTLY IN EXCESS OF THE INNER DIAMETER OF SAID TUBULAR MEMBER, PRESS FITTING SAID MACHINED, COATED, MANDREL WITHIN SAID TUBULAR MEMBER, AND DECOMPOSING SAID MANDREL WHEREBY SAID FLAME-SPRAYED NON-METALLIC COATING REMAINS AFFIXED TO THE INNER SURFACE OF SAID TUBULAR MEMBER.
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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |