Patent FR2273264A1 successfully refreshed from Google Patents.
US3208869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidized coating of pipe
Assignee: Jones and Laughlin Steel Corp
•
Filing: 1961-01-16
•
Granted: 1965-09-28
•
Expires: 1981-01-16
Abstract
No abstract record available.
Inventors
- 👤 Starr Philip
- 👤 Theodore H Holt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:10
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/18; B05D1/22; B05D1/24; B05D1/002; F; F16; F16K; F16K27/00; Y; Y10; Y10S; Y10S118/00; Y10S118/05
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
96 words
THE PROCESS OF PROVIDING PIPE WITH A HOMOGENEOUS SINTERED COATING FORMED FROM DRY, PULVERULENT SOLID MATERIAL COMPRISING HEATING THE PIPE TO A TEMPERATURE ABOVE THE SINTERING TEMPERATURE OF THE COATING MATERIAL, PROGRESSIVELY MOVING THE HEATED PIPE AXIALLY ALONG A HORIZONTAL PATH OVER A SUPPORTING MANDREL THROUGH A FLUIDIZED BED OF THE COATING MATERIAL AND ROTATING TO PIPE ABOUT ITS AXIS, WHEREBY A UNIFORM, HOMOGENEOUS LAYER OF COATING MATERIAL IS PROGRESSIVELY FORMED ON THE PIPE, AND WITHOUT RE-HEATING THE PIPE SUPPLYING COLLING FLUID TO THE COATED PIPE WHEREBY THE COATING MATERIAL IS PROGRESSIVELY SOLIDIFIED ON THE PIPE.
Claim 2
Dependent Claim
96 words
THE PROCESS OF PROVIDING PIPE WITH A HOMOGENEOUS SINTERED COATING FORMED FROM DRY, PULVERULENT SOLID MATERIAL COMPRISING HEATING THE PIPE TO A TEMPERATURE ABOVE THE SINTERING TEMPERATURE OF THE COATING MATERIAL, PROGRESSIVELY MOVING THE HEATED PIPE AXIALLY ALONG A HORIZONTAL PATH OVER A SUPPORTING MANDREL THROUGH A FLUIDIZED BED OF THE COATING MATERIAL AND ROTATING TO PIPE ABOUT ITS AXIS, WHEREBY A UNIFORM, HOMOGENEOUS LAYER OF COATING MATERIAL IS PROGRESSIVELY FORMED ON THE PIPE, AND WITHOUT RE-HEATING THE PIPE SUPPLYING COLLING FLUID TO THE COATED PIPE WHEREBY THE COATING MATERIAL IS PROGRESSIVELY SOLIDIFIED ON THE PIPE.
Claim 3
Dependent Claim
140 words
APPARATUS FOR PROVIDING PIPE WITH A HOMOGENEOUS SINTERED COATING FORMED FROM DRY, PULVERULENT SOLID MATERIAL COMPRISING A CLOSED CHAMBER ADAPTED TO CONTAIN A BED OF THE DRY, PULVERULENT SOLID MATERIAL, A BOTTOM FOR THE CHAMBER PROVIDED WITH MEANS FOR INTRODUCING A GAS TO FLUIDIZE THE BED OF THE DRY, PULVERULENT SOLID MATERIAL, ENTRY AND EXIT PORTS IN OPPOSITE SIDES OF THE CHAMBER INTERMEDIATE THE TOP AND BOTTOM THEREOF ALIGNED TO PROVIDE A HORIZONTAL PATH OF TRAVEL FOR PIPE THROUGH THE CHAMBER, MEANS FOR MOVING THE PIPE ALONG THE HORIZONTAL PATH OF TRAVEL THROUGH THE CHAMBER AND FOR ROTATING THE PIPE ABOUT ITS AXIS, AND A MANDREL POSITIONED ALONG THE PATH OF TRAVEL AWAY FROM THE CHAMBER AND EXTENDING THROUGH THE EXIT PORT INTO THE ENTRY PORT SO THAT THE PIPE PASSES OVER THE MANDEL AS IT PASSES THROUGH THE CHAMBER.
Claim 4
Dependent Claim
140 words
APPARATUS FOR PROVIDING PIPE WITH A HOMOGENEOUS SINTERED COATING FORMED FROM DRY, PULVERULENT SOLID MATERIAL COMPRISING A CLOSED CHAMBER ADAPTED TO CONTAIN A BED OF THE DRY, PULVERULENT SOLID MATERIAL, A BOTTOM FOR THE CHAMBER PROVIDED WITH MEANS FOR INTRODUCING A GAS TO FLUIDIZE THE BED OF THE DRY, PULVERULENT SOLID MATERIAL, ENTRY AND EXIT PORTS IN OPPOSITE SIDES OF THE CHAMBER INTERMEDIATE THE TOP AND BOTTOM THEREOF ALIGNED TO PROVIDE A HORIZONTAL PATH OF TRAVEL FOR PIPE THROUGH THE CHAMBER, MEANS FOR MOVING THE PIPE ALONG THE HORIZONTAL PATH OF TRAVEL THROUGH THE CHAMBER AND FOR ROTATING THE PIPE ABOUT ITS AXIS, AND A MANDREL POSITIONED ALONG THE PATH OF TRAVEL AWAY FROM THE CHAMBER AND EXTENDING THROUGH THE EXIT PORT INTO THE ENTRY PORT SO THAT THE PIPE PASSES OVER THE MANDEL AS IT PASSES THROUGH THE CHAMBER.
References Cited (Backward Citations)
US610224A
Cited
US2287825A
Cited
GB700177A
Cited
US3004861A
Cited
GB838739A
Cited
GB833181A
Cited
US2970950A
Cited
US2945258A
Cited
US3016875A
Cited
US3108022A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |