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US3135589A Expired / Lapsed US ⏱️ 0.0 years remaining

Drying apparatus

Assignee: Pennwalt Corp
•
Filing: 1961-09-29
•
Granted: 1964-06-02
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Expires: 1981-09-29
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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.

References Cited (Backward Citations)

US2132897A Cited
US2156845A Cited
US2389452A Cited
US2362117A Cited
US2564475A Cited
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US3036383A Cited
US3008300A Cited

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

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