US3135589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drying apparatus
Assignee: Pennwalt Corp
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Filing: 1961-09-29
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Granted: 1964-06-02
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Expires: 1981-09-29
Abstract
No abstract record available.
Inventors
- 👤 Stokes David Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:39
CPC Classifications
A; A23; A23B; A23B7/00; A23B7/02; A23B7/024; A23C; A23C1/00; A23C1/06; A23C1/08; A23L; A23L2/00; A23L2/02; A23L2/08; A23L2/12; A23L2/14; F; F26; F26B; F26B5/00; F26B5/04; F26B5/044; F26B5/06; F26B9/00; F26B9/06; F26B9/066
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
220 words
A DRYING APPARATUS COMPRISING A HOUSING HAVING A DRYING CHAMBER THEREIN, SAID CHAMBER INCLUDING SIDE, FRONT AND BACK WALLS, SAID FRONT WALL HAVING A DOOR THEREON, SAID BACK WALL BEING OPPOSITE FROM SAID FRONT WALL, MEANS SUPPORTING A PLURALITY OF ELECTRICALY HEATED SHELVES IN SAID CHAMBER, SAID SHELVES BEING COUPLED TO A COMMON ELECTRICAL CONDUIT, A THERMOELECTRIC CONDENSER LOCATED BELOW SAID SHELVES IN SAID HOUSING ELECTRICALLY COUPLED TO SAID CONDUIT, A HEAT REFLECTING AND INSULATING SHELF LOCATED BETWEEN SAID THERMOELECTRIC CONDENSER AND SAID ELECTRICALLY HEATED SHELVES IN SAID CHAMBER, SAID HEAT REFLECTING AND INSULATING SHELF BEING SPACED FROM SAID SIDE WALLS TO PROVIDE A PASSAGEWAY FOR FLUIDS AND VAPORS WITHIN SAID HOUSING, A VACUUM PUMP IN COMMUNICATIONWITH SAID CHAMBER IN THE REGION OF SAID CONDENSER FOR SELECTIVELY EVACUATING SAID CHAMBER, SAID COMMON ELECTRICAL CONDUIT INCLUDING A VERTICAL STRIP MOUNTED ON SAID BACK WALL HAVING SPACED CONTACT MEMBERS THEREON, SAID ELECTRICALLY HEATED SHELVES AND SAID THERMOELECTRIC CONDENSER HAVING SPACED MATING CONTACT MEMBERS AT ONE END THEREOF ADAPTED TO MATE WITH SAID MATING CONTACT MEMBERS ON SAID VERTICAL STRIP, AND GUIDE MEANS ON THE SIDE WALLS OF SAID HOUSING SUPPORTING SAID ELECTRICALLY HEATED SHELVES AND SAID THERMOELECTRIC CONDENSER IN A HORIZONTAL POSITION WITH SAID ELECTRICALLY HEATED SHELVES AND THERMOELECTRIC CONDENSER MATING CONTACT MEMBERS IN ALIGNMENT WITH SAID VERTICAL STRIP MATING CONTACT MEMBERS.
Claim 2
Dependent Claim
220 words
A DRYING APPARATUS COMPRISING A HOUSING HAVING A DRYING CHAMBER THEREIN, SAID CHAMBER INCLUDING SIDE, FRONT AND BACK WALLS, SAID FRONT WALL HAVING A DOOR THEREON, SAID BACK WALL BEING OPPOSITE FROM SAID FRONT WALL, MEANS SUPPORTING A PLURALITY OF ELECTRICALY HEATED SHELVES IN SAID CHAMBER, SAID SHELVES BEING COUPLED TO A COMMON ELECTRICAL CONDUIT, A THERMOELECTRIC CONDENSER LOCATED BELOW SAID SHELVES IN SAID HOUSING ELECTRICALLY COUPLED TO SAID CONDUIT, A HEAT REFLECTING AND INSULATING SHELF LOCATED BETWEEN SAID THERMOELECTRIC CONDENSER AND SAID ELECTRICALLY HEATED SHELVES IN SAID CHAMBER, SAID HEAT REFLECTING AND INSULATING SHELF BEING SPACED FROM SAID SIDE WALLS TO PROVIDE A PASSAGEWAY FOR FLUIDS AND VAPORS WITHIN SAID HOUSING, A VACUUM PUMP IN COMMUNICATIONWITH SAID CHAMBER IN THE REGION OF SAID CONDENSER FOR SELECTIVELY EVACUATING SAID CHAMBER, SAID COMMON ELECTRICAL CONDUIT INCLUDING A VERTICAL STRIP MOUNTED ON SAID BACK WALL HAVING SPACED CONTACT MEMBERS THEREON, SAID ELECTRICALLY HEATED SHELVES AND SAID THERMOELECTRIC CONDENSER HAVING SPACED MATING CONTACT MEMBERS AT ONE END THEREOF ADAPTED TO MATE WITH SAID MATING CONTACT MEMBERS ON SAID VERTICAL STRIP, AND GUIDE MEANS ON THE SIDE WALLS OF SAID HOUSING SUPPORTING SAID ELECTRICALLY HEATED SHELVES AND SAID THERMOELECTRIC CONDENSER IN A HORIZONTAL POSITION WITH SAID ELECTRICALLY HEATED SHELVES AND THERMOELECTRIC CONDENSER MATING CONTACT MEMBERS IN ALIGNMENT WITH SAID VERTICAL STRIP MATING CONTACT MEMBERS.
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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) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |