US3364053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of coating articles
Assignee: Polymer Corp
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Filing: 1964-10-05
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Granted: 1968-01-16
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Expires: 1984-10-05
Abstract
No abstract record available.
Inventors
- 👤 Beike Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:20
CPC Classifications
B; B05; B05C; B05C19/00; B05C19/02; B05D; B05D1/00; B05D1/18; B05D1/22; B05D1/24; Y; Y10; Y10S; Y10S118/00; Y10S118/05
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
162 words
A METHOD FOR COATING ARTICLES IN FLUIDIZED BED COATING PROCESSES WHEREIN PULVERULENT, HEAT-FUSIBLE COATING MATERIALS ARE FLUIDIZED WITHIN THE CONFINES OF AN OPEN-TOPPED FLUIDIZATION VESSEL AND ARTICLES TO BE COATED ARE HEATED TO ABOVE THE FUSION TEMPERATURE OF SAID COATING MATERIALS AND WHILE SO HEATED, IMMERSED IN SAID FLUIDIZED BED OF COATING MATERIALS AND THEN WITHDRAWN, THE IMPROVEMENT COMPRISING A METHOD FOR OBTAINING IMPROVED FLUIDIZATION OF THE COATING MATERIALS IN SAID FLUIDIZED BED BY CONTINUOUSLY WITHDRAWING COATING MATERIALS FROM SAID FLUIDIZED BED AT AN ELEVATION BELOW THE FREE SURFACE OF SAID FLUIDIZED BED; CONVEYING ALL OF SAID WITHDRAWN COATING MATERIALS BY MECHANICAL MEANS TO AN ELEVATION ABOVE THE FREE SURFACE OF SAID FLUIDIZED BED; AND CONTINUOUSLY DISCHARGING ALL OF SAID ELEVATED COATING MATERIALS INTO SAID FLUIDIZED BED AT A POINT SPACED ABOVE THE POINT AT WHICH SAID SOLIDS ARE BEING WITHDRAWN, WHEREBY A FLOW OF CIRCULATING COATING MATERIALS IS ESTABLISHED WITHIN SAID FLUIDIZED BED SUBSTANTIALLY COUNTERCURRENT TO THE FLOW OF FLUIDIZING GASES.
Claim 2
Independent Claim
162 words
A METHOD FOR COATING ARTICLES IN FLUIDIZED BED COATING PROCESSES WHEREIN PULVERULENT, HEAT-FUSIBLE COATING MATERIALS ARE FLUIDIZED WITHIN THE CONFINES OF AN OPEN-TOPPED FLUIDIZATION VESSEL AND ARTICLES TO BE COATED ARE HEATED TO ABOVE THE FUSION TEMPERATURE OF SAID COATING MATERIALS AND WHILE SO HEATED, IMMERSED IN SAID FLUIDIZED BED OF COATING MATERIALS AND THEN WITHDRAWN, THE IMPROVEMENT COMPRISING A METHOD FOR OBTAINING IMPROVED FLUIDIZATION OF THE COATING MATERIALS IN SAID FLUIDIZED BED BY CONTINUOUSLY WITHDRAWING COATING MATERIALS FROM SAID FLUIDIZED BED AT AN ELEVATION BELOW THE FREE SURFACE OF SAID FLUIDIZED BED; CONVEYING ALL OF SAID WITHDRAWN COATING MATERIALS BY MECHANICAL MEANS TO AN ELEVATION ABOVE THE FREE SURFACE OF SAID FLUIDIZED BED; AND CONTINUOUSLY DISCHARGING ALL OF SAID ELEVATED COATING MATERIALS INTO SAID FLUIDIZED BED AT A POINT SPACED ABOVE THE POINT AT WHICH SAID SOLIDS ARE BEING WITHDRAWN, WHEREBY A FLOW OF CIRCULATING COATING MATERIALS IS ESTABLISHED WITHIN SAID FLUIDIZED BED SUBSTANTIALLY COUNTERCURRENT TO THE FLOW OF FLUIDIZING GASES.
Claim 3
Dependent Claim
58 words
APPARATUS FOR IMPROVING THE FLUIDIZATION OF HEAT-FUSIBLE, PULVERULENT COATING MATERIALS IN FLUIDIZED BED COATING PROCESSES INCLUDING AN OPEN-TOPPED FLUIDIZATION CHAMBER HAVING IMPERVIOUS SIDE WALLS, A LOWER GAS-PERVIOUS DISTRIBUTION PLATE ADAPTED TO SUPPORT A BED OF PULVERULENT FLUIDIZIED COATING MATERIALS, AND MEANS FOR PASSING FLUIDIZING GASES UPWARDLY THROUGH SAID GAS DISTRIBUTION PLATE INTO SAID FLUIDIZATION CHAMBER; THE IMPROVEMENT COMPRISING:
Claim 4
Dependent Claim
58 words
APPARATUS FOR IMPROVING THE FLUIDIZATION OF HEAT-FUSIBLE, PULVERULENT COATING MATERIALS IN FLUIDIZED BED COATING PROCESSES INCLUDING AN OPEN-TOPPED FLUIDIZATION CHAMBER HAVING IMPERVIOUS SIDE WALLS, A LOWER GAS-PERVIOUS DISTRIBUTION PLATE ADAPTED TO SUPPORT A BED OF PULVERULENT FLUIDIZIED COATING MATERIALS, AND MEANS FOR PASSING FLUIDIZING GASES UPWARDLY THROUGH SAID GAS DISTRIBUTION PLATE INTO SAID FLUIDIZATION CHAMBER; THE IMPROVEMENT COMPRISING:
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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) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |