US3156033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for forming a glass coated tubular roller element
Assignee: AO Smith Corp
•
Filing: 1962-01-02
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Granted: 1964-11-10
•
Expires: 1982-01-02
Abstract
No abstract record available.
Inventors
- 👤 Carl S Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:54
CPC Classifications
C; C23; C23D; C23D5/00; C23D5/005; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49544; Y10T29/4956; Y10T29/49563; Y10T29/49826; Y10T29/49885; Y10T29/49945; Y10T29/4998; Y10T29/49982
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A METHOD OF FORMING A GLASS-COATED ROLLER, COMPRISING, (A) FUSING A GLASS COATING TO THE EXTERIOR SURFACE OF THE THIN-WALL NON-SELF-SUPPORTING TUBULAR SHELL, (B) SUBSEQUENTLY FORCING A CENTRAL SELF-SUPPORTING CORE HAVING AN OUTER CONTINUOUS DIAMETER SUBSTANTIALLY CORRESPONDING TO THE INTERNAL DIAMETER OF THE SHELL INTO THE THIN-WALL SHELL TO SUBSTANTIALLY REMOVE ANY DISTORTION FROM THE SHELL AND FORM A SELF-SUPPORTING LAMINATED ROLLER.
Claim 2
Independent Claim
62 words
A METHOD OF FORMING A GLASS-COATED ROLLER, COMPRISING, (A) FUSING A GLASS COATING TO THE EXTERIOR SURFACE OF THE THIN-WALL NON-SELF-SUPPORTING TUBULAR SHELL, (B) SUBSEQUENTLY FORCING A CENTRAL SELF-SUPPORTING CORE HAVING AN OUTER CONTINUOUS DIAMETER SUBSTANTIALLY CORRESPONDING TO THE INTERNAL DIAMETER OF THE SHELL INTO THE THIN-WALL SHELL TO SUBSTANTIALLY REMOVE ANY DISTORTION FROM THE SHELL AND FORM A SELF-SUPPORTING LAMINATED ROLLER.
References Cited (Backward Citations)
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US2411024A
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US2651241A
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US2704884A
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US2988803A
Cited
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Cited
US2983990A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |