US3132038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for dry enameling
Assignee: American Radiator and Standard Sanitary Corp
•
Filing: 1960-01-29
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Granted: 1964-05-05
•
Expires: 1980-01-29
Abstract
No abstract record available.
Inventors
- 👤 John A Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:37
CPC Classifications
C; C23; C23D; C23D5/00; C23D5/04; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31714
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
THE METHOD OF ENAMELING A METAL WORK PIECE WITH VITREROUS ENAMEL WITH COMPRISES HEATING THE WORK PIECE TO A TEMPERATURE ABOVE THE MELTING POINT OF VITREOUS ENAMEL, THEREAFTER MAINTAINING THE TEMPERATURE OF THE ATMOSPHERE ABOUT THE WORK PIECE SUBSTANTIALLY ABOVE ROOM TEMPERATURE AND BELOW THE MELTING TEMPERATURE OF THE ENAMEL, MOVING THE WORK PIECE IN THE ATMOSPHERE WITH LATERALLY SPACED SURFACE AREAS OF THE WORK PIECE MOVING AT DIFFERENT LINEAR SPEEDS, IMPINGING A FALLING STREAM OF DRY POWDERED ENAMELING MATERIAL THROUGH SAID ATMOSPHERE ONTO SAID SURFACE AREAS OF SAID WORK PIECE, AND SUPPLYING SAID MATERIAL TO SAID AREA OF THE WORK PIECE IN QUANTITIES
Claim 2
Independent Claim
104 words
THE METHOD OF ENAMELING A METAL WORK PIECE WITH VITREROUS ENAMEL WITH COMPRISES HEATING THE WORK PIECE TO A TEMPERATURE ABOVE THE MELTING POINT OF VITREOUS ENAMEL, THEREAFTER MAINTAINING THE TEMPERATURE OF THE ATMOSPHERE ABOUT THE WORK PIECE SUBSTANTIALLY ABOVE ROOM TEMPERATURE AND BELOW THE MELTING TEMPERATURE OF THE ENAMEL, MOVING THE WORK PIECE IN THE ATMOSPHERE WITH LATERALLY SPACED SURFACE AREAS OF THE WORK PIECE MOVING AT DIFFERENT LINEAR SPEEDS, IMPINGING A FALLING STREAM OF DRY POWDERED ENAMELING MATERIAL THROUGH SAID ATMOSPHERE ONTO SAID SURFACE AREAS OF SAID WORK PIECE, AND SUPPLYING SAID MATERIAL TO SAID AREA OF THE WORK PIECE IN QUANTITIES
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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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |