US3238638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow through type drying apparatus
Assignee: Pennwalt Corp
•
Filing: 1962-03-08
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Granted: 1966-03-08
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Expires: 1982-03-08
Abstract
No abstract record available.
Inventors
- 👤 William H Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:15
CPC Classifications
F; F26; F26B; F26B5/00; F26B5/04; F26B5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
207 words
A PRODUCT FLOW THROUGH DRYING APPARATUS COMPRIS ING A REGULAR PARALLELEPIPED HOUSING, UPPER AND LOWER ENDS OF SAID HOUSING HAVING SELECTIVELY MOVABLE PORTIONS SO THAT PRODUCTS TO BE DRIED MAY BE INSERTED INTO THE HOUSING FROM AN UPPER END AND REMOVED FROM A LOWER END, AND OPEN ENDED CONTAINER WITHIN SAID HOUSING AND SUPPORTED THEREBY, SAID CONTAINER BEING ADAPTED TO RECEIVE A PRODUCT AT ITS UPPER END AND PRMIT DISCHARGE OF THE PRODUCT THROUGH ITS LOWER END, OPPOSITE SIDES OF SAID CONTAINER HAVING APERTURES PROVIDING OPEN COMMUNICATION BETWEEN THE INTERIOR OF SAID CONTAINER AND THE INTERIOR OF SAID HOUSING, HEATING PANELS JUXTAPOSED TO THE APERTURED SIDES OF SAID CONTAINER FOR RADIANTLY HEATING PRODUCT WITHIN SAID CONTAINER, SAID HEATING PANELS BEING DISPOSED IN SPACED APART RELATION BETWEEN THE APERTURED OPPOSITE SIDES AND THE ADJACENT SIDE WALLS OF THE HOUSING, AND MEANS COUPLED TO SAID HOUSING FOR REDUCING THE PRESSUR WITHIN SAID HOUSING AND SAID CONTAINER, SAID LASTMENTIONED MEANS INCLUDING CONDUIT MEANS COMMUNICATING WITH THE INTERIOR OF SAID HOUSING THROUGH A WALL PERPENDICULAR TO THE SAID ADJACENT WALLS, SAID CONDUIT MEANS BEING POSITIONED ON SAID PERPENDICULAR WALL SO AS TO BE ALIGNED IN COMMUNICATION WITH THE OPEN SPACE BETWEEN SAID HEATER PANELS AND SAID APERTURED SIDES OF SAID CONTAINER.
Claim 2
Dependent Claim
207 words
A PRODUCT FLOW THROUGH DRYING APPARATUS COMPRIS ING A REGULAR PARALLELEPIPED HOUSING, UPPER AND LOWER ENDS OF SAID HOUSING HAVING SELECTIVELY MOVABLE PORTIONS SO THAT PRODUCTS TO BE DRIED MAY BE INSERTED INTO THE HOUSING FROM AN UPPER END AND REMOVED FROM A LOWER END, AND OPEN ENDED CONTAINER WITHIN SAID HOUSING AND SUPPORTED THEREBY, SAID CONTAINER BEING ADAPTED TO RECEIVE A PRODUCT AT ITS UPPER END AND PRMIT DISCHARGE OF THE PRODUCT THROUGH ITS LOWER END, OPPOSITE SIDES OF SAID CONTAINER HAVING APERTURES PROVIDING OPEN COMMUNICATION BETWEEN THE INTERIOR OF SAID CONTAINER AND THE INTERIOR OF SAID HOUSING, HEATING PANELS JUXTAPOSED TO THE APERTURED SIDES OF SAID CONTAINER FOR RADIANTLY HEATING PRODUCT WITHIN SAID CONTAINER, SAID HEATING PANELS BEING DISPOSED IN SPACED APART RELATION BETWEEN THE APERTURED OPPOSITE SIDES AND THE ADJACENT SIDE WALLS OF THE HOUSING, AND MEANS COUPLED TO SAID HOUSING FOR REDUCING THE PRESSUR WITHIN SAID HOUSING AND SAID CONTAINER, SAID LASTMENTIONED MEANS INCLUDING CONDUIT MEANS COMMUNICATING WITH THE INTERIOR OF SAID HOUSING THROUGH A WALL PERPENDICULAR TO THE SAID ADJACENT WALLS, SAID CONDUIT MEANS BEING POSITIONED ON SAID PERPENDICULAR WALL SO AS TO BE ALIGNED IN COMMUNICATION WITH THE OPEN SPACE BETWEEN SAID HEATER PANELS AND SAID APERTURED SIDES OF SAID CONTAINER.
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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) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |