US3007841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Humidifier plates
Assignee: Johns Manville Corp
•
Filing: 1958-12-04
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Granted: 1961-11-07
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Expires: 1978-12-04
Abstract
No abstract record available.
Inventors
- 👤 Richard C Breiner
- 👤 Robert G Quinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:31
CPC Classifications
F; F24; F24F; F24F6/00; F24F6/02; F24F6/04; F24F6/043; C; C04; C04B; C04B26/00; C04B26/02; C04B26/04; C04B26/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
AN EVAPORATOR PLATE FOR USE IN HUMIDIFIER UNITS FOR AIR CONDITIONING APPARATUS COMPRISING AN ABSORPTIVE PLATE HAVING A STEM PORTION AND A HEAD PORTION, SAID ABSORPTIVE PLATE BEING SUPPORTED WITH SAID STEM PORTION IN A SUPPLY OF WATER TO WICK WATER FROM SAID SUPPLY THROUGH SAID STEM PORTION TO SAID HEAD PORTION AT A RATE FASTER THAN THE EVAPORATION OF WATER FROM SAID HEAD PORTION WHEN SUBJECTED TO WARM AIR PASSING THEREOVER, SAID ABSORPTIVE PLATE HAVING A SATURATED TENSILE WET STRENGTH WHEN MEASURED IN THE MACHINE DIRECTION OF AT LEAST 39 LBS./IN.2, SAID ABSORPTIVE PLATE COMPRISING FELTED FIBERS DISPOSED IN A SHEET-LIKE BODY, SAID SHEET-LIKE BODY BEING FORMED FROM A MIXTURE COMPRISING 15-35% BY WEIGHT OF ASBESTOS FIBERS, 20-40% BY WEIGHT OF ABSORPTIVE PARTICULATE FILLER MATERIAL FROM A GROUP CONSISTING OF DIATOMACEOUS EARTH, PERLITE, AND HYDRATED CALCIUM SILICATES, AND MIXTURES THEREOF, 30-60% BY WEIGHT OF INORGANIC MINERAL FIBERS FROM A GROUP CONSISTING OF SLAG WOOL, ROCK WOLL, AND GLASS FIBER AND MIXTURES THEREOF, AND 0.5-2.5% BY WEIGHT OF RESIN BINDER.
Claim 2
Dependent Claim
170 words
AN EVAPORATOR PLATE FOR USE IN HUMIDIFIER UNITS FOR AIR CONDITIONING APPARATUS COMPRISING AN ABSORPTIVE PLATE HAVING A STEM PORTION AND A HEAD PORTION, SAID ABSORPTIVE PLATE BEING SUPPORTED WITH SAID STEM PORTION IN A SUPPLY OF WATER TO WICK WATER FROM SAID SUPPLY THROUGH SAID STEM PORTION TO SAID HEAD PORTION AT A RATE FASTER THAN THE EVAPORATION OF WATER FROM SAID HEAD PORTION WHEN SUBJECTED TO WARM AIR PASSING THEREOVER, SAID ABSORPTIVE PLATE HAVING A SATURATED TENSILE WET STRENGTH WHEN MEASURED IN THE MACHINE DIRECTION OF AT LEAST 39 LBS./IN.2, SAID ABSORPTIVE PLATE COMPRISING FELTED FIBERS DISPOSED IN A SHEET-LIKE BODY, SAID SHEET-LIKE BODY BEING FORMED FROM A MIXTURE COMPRISING 15-35% BY WEIGHT OF ASBESTOS FIBERS, 20-40% BY WEIGHT OF ABSORPTIVE PARTICULATE FILLER MATERIAL FROM A GROUP CONSISTING OF DIATOMACEOUS EARTH, PERLITE, AND HYDRATED CALCIUM SILICATES, AND MIXTURES THEREOF, 30-60% BY WEIGHT OF INORGANIC MINERAL FIBERS FROM A GROUP CONSISTING OF SLAG WOOL, ROCK WOLL, AND GLASS FIBER AND MIXTURES THEREOF, AND 0.5-2.5% BY WEIGHT OF RESIN BINDER.
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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) | 1964-11-06 | 1965-05-08 | 1965-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-06 | 1969-05-08 | 1969-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-06 | 1973-05-08 | 1973-11-07 | $7700.00 | Window Closed / Lapsed |