US3174229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drying apparatus of elongated heated conduit type
Assignee: Pennwalt Corp
•
Filing: 1962-02-26
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Granted: 1965-03-23
•
Expires: 1982-02-26
Abstract
No abstract record available.
Inventors
- 👤 David E Stokes
- 👤 James W Ryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:34
CPC Classifications
F; F26; F26B; F26B5/00; F26B5/04; F26B5/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
106 words
A DRYING APPARATUS FROM FROZEN ARTICLES COMPRISING A REFRIGERATED CHAMBER FOR MAINTAINING SAID FROZEN ARTICLES IN THEIR FROZEN STATE, AN ELONGATED CONDUIT EXTENDING FROM SAID CHAMBER, SAID CONDUIT HAVING AN INLET END WITHIN SAID CHAMBER AND A DISCHARGE END WITHOUT SAID CHAMBER, MEANS FOR CYCLICALLY FEEDING ARTICLES TO BE DREIED INTO THE INLET END OF SAID CONDUIT WITHIN SAID CHAMBER, MEANS AT SPACED POINTS ALONG SAID CONDUIT FOR REDUCING THE PRESSURE WITHIN SAID CONDUIT, AT SPACED POINTS TIVELY INTRODUCING HEAT INTO SAID CONDUIT AT SPACED POINTS THEREALONG, SAID DISCHARGE END OF THE CONDUIT BEING REMOTE FROM SAID INLET END AND FROM WHICH DRIED ARTICLES ARE DISPENSED.
References Cited (Backward Citations)
US2585825A
Cited
US2552360A
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US2554560A
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US2668364A
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US2751687A
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US2858795A
Cited
US2846319A
Cited
US2971350A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |