US3145562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for ascertaining optimum drying conditions
Assignee: Pennwalt Corp
•
Filing: 1961-07-18
•
Granted: 1964-08-25
•
Expires: 1981-07-18
Abstract
No abstract record available.
Inventors
- 👤 William H Hamilton
- 👤 Manuel E Fuentevilla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:24
CPC Classifications
F; F26; F26B; F26B25/00; F26B25/22; F26B25/225; F26B5/00; F26B5/04; F26B5/06; G; G01; G01N; G01N5/00; G01N5/04; G01N5/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
TESTING APPARATUS COMPRISING A HOUSING HAVING A CHAMBER THEREIN, A REMOVABLE PORTION OF SAID HOUSING HERMETICALLY SEALED THERETO FOR PROVIDING ACCESS TO SAID CHAMBER, A TRAY THERMALLY ISOLATED FROM AND SUPPORTED WITHIN SAID CHAMBER AND ADAPTED TO CONTAIN SPECIMENS, MEANS FOR VACUUM DRYING SPECIMENS ADAPTED TO BE DISPOSED WITHIN SAID TRAY, SAID LAST-MENTIONED MEANS INCLUDING VACUUM MEANS FOR EVACUATING SAID HOUSING AND HEATING MEANS FOR HEATING SPECIMENS CONTAINED WITHIN SAID TRAY, WEIGHT RESPONSIVE MEANS OPERATIVELY ASSOCIATED WITH RESPECT TO AND THERMALLY ISOLATED FROM SAID TRAY FOR ASCERTAINING THE WEIGHT OF THE SPECIMENS WHILE THEY ARE BEING DRIED, MEANS FOR INDICATING THE TEMPERATURE OF SAID SPECIMENS WHILE THEY ARE BEING DRIED, MEANS FOR INDICATING THE TEMPERATURE OF SAID HEATING MEANS WHILE THE SPECIMENS ARE BEING DRIED, AND MEANS FOR INDICATING THE PRESSURE WITHIN SAID CHAMBER WHILE THE SPECIMENS ARE BEING DRIED, WHEREBY THE OPTIMUM TEMPERATURE, PRESSURE AND TIME PERIOD FOR DRYING SUBSTANTIALLY ANY TYPE OF SPECIMEN MAY BE ASCERTAINED.
Claim 2
Dependent Claim
158 words
TESTING APPARATUS COMPRISING A HOUSING HAVING A CHAMBER THEREIN, A REMOVABLE PORTION OF SAID HOUSING HERMETICALLY SEALED THERETO FOR PROVIDING ACCESS TO SAID CHAMBER, A TRAY THERMALLY ISOLATED FROM AND SUPPORTED WITHIN SAID CHAMBER AND ADAPTED TO CONTAIN SPECIMENS, MEANS FOR VACUUM DRYING SPECIMENS ADAPTED TO BE DISPOSED WITHIN SAID TRAY, SAID LAST-MENTIONED MEANS INCLUDING VACUUM MEANS FOR EVACUATING SAID HOUSING AND HEATING MEANS FOR HEATING SPECIMENS CONTAINED WITHIN SAID TRAY, WEIGHT RESPONSIVE MEANS OPERATIVELY ASSOCIATED WITH RESPECT TO AND THERMALLY ISOLATED FROM SAID TRAY FOR ASCERTAINING THE WEIGHT OF THE SPECIMENS WHILE THEY ARE BEING DRIED, MEANS FOR INDICATING THE TEMPERATURE OF SAID SPECIMENS WHILE THEY ARE BEING DRIED, MEANS FOR INDICATING THE TEMPERATURE OF SAID HEATING MEANS WHILE THE SPECIMENS ARE BEING DRIED, AND MEANS FOR INDICATING THE PRESSURE WITHIN SAID CHAMBER WHILE THE SPECIMENS ARE BEING DRIED, WHEREBY THE OPTIMUM TEMPERATURE, PRESSURE AND TIME PERIOD FOR DRYING SUBSTANTIALLY ANY TYPE OF SPECIMEN MAY BE ASCERTAINED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |