Patent EP0340304A1 successfully refreshed from Google Patents.
US3073038A
Expired / Lapsed
US
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Drying drum
Assignee: WOODROW C LODDING
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Filing: 1959-11-05
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Granted: 1963-01-15
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Expires: 1979-11-05
Abstract
No abstract record available.
Inventors
- 👤 William P Dapses
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:07
CPC Classifications
F; F26; F26B; F26B13/00; F26B13/10; F26B13/14; F26B13/18; D; D21; D21F; D21F5/00; D21F5/02; F26B13/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
DRYING APPARATUS OF THE CLASS DESCRIBED COMPRISING A HEATED SURFACE OVER WHICH MOIST MATERIAL TO BE DRIED PASSES IN INTIMATE CONTACT THEREWITH, SAID SURFACE BEING FORAMINOUS, A SOURCE OF SUBSTANTIALLY DRY HEAT AT ONE SIDE OF SAID SURFACE, SAID MATERIAL BEING AT THE OPPOSITE SIDE THEREOF, SAID HEAT PASSING THROUGH SAID FORAMINOUS SURFACE AND BEING APPLIED TO ONE SIDE OF THE MASS OF THE MATERIAL AND FORMING A SOURCE OF CONTINUOUS VAPOR PRESSURE BETWEEN THE FORAMINOUS SURFACE AND THE MASS OF MATERIAL, THE VAPOR ESCAPING THROUGH THE FORAMINOUS SURFACE TOWARDS THE SOURCE OF HEAT, AND MEANS PROVIDING FOR DISPERSAL OF THE VAPOR, SAID VORAMINOUS SURFACE BEING IN THE FORM OF A SPONGY HARD POROUS MATERIAL.
Claim 2
Dependent Claim
115 words
DRYING APPARATUS OF THE CLASS DESCRIBED COMPRISING A HEATED SURFACE OVER WHICH MOIST MATERIAL TO BE DRIED PASSES IN INTIMATE CONTACT THEREWITH, SAID SURFACE BEING FORAMINOUS, A SOURCE OF SUBSTANTIALLY DRY HEAT AT ONE SIDE OF SAID SURFACE, SAID MATERIAL BEING AT THE OPPOSITE SIDE THEREOF, SAID HEAT PASSING THROUGH SAID FORAMINOUS SURFACE AND BEING APPLIED TO ONE SIDE OF THE MASS OF THE MATERIAL AND FORMING A SOURCE OF CONTINUOUS VAPOR PRESSURE BETWEEN THE FORAMINOUS SURFACE AND THE MASS OF MATERIAL, THE VAPOR ESCAPING THROUGH THE FORAMINOUS SURFACE TOWARDS THE SOURCE OF HEAT, AND MEANS PROVIDING FOR DISPERSAL OF THE VAPOR, SAID VORAMINOUS SURFACE BEING IN THE FORM OF A SPONGY HARD POROUS MATERIAL.
References Cited (Backward Citations)
US697312A
Cited
US2074455A
Cited
US2054391A
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US2299662A
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US2436028A
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FR1158265A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |