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US3238638A Expired / Lapsed US ⏱️ 0.0 years remaining

Flow through type drying apparatus

Assignee: Pennwalt Corp
•
Filing: 1962-03-08
•
Granted: 1966-03-08
•
Expires: 1982-03-08
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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.

References Cited (Backward Citations)

US1207763A Cited
US1086950A Cited
US1577709A Cited
US2156845A Cited
US2283319A Cited
US2486876A Cited
US2605692A Cited
US3010216A Cited
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US3057078A Cited

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

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