US3168243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating system
Assignee: Individual
•
Filing: 1961-06-27
•
Granted: 1965-02-02
•
Expires: 1981-06-27
Abstract
No abstract record available.
Inventors
- 👤 Porland Kjeld Rikard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:55
CPC Classifications
F; F24; F24D; F24D19/00; F24D19/10; F24D19/1006; F24D19/1009; F24D19/1015; F24D19/1024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
A SYSTEM FOR THE MAINTENANCE OF PREDETERMINED TEMPERATURES IN ROOMS PROVIDED WITH A PLURALITY OF RADIATORS SUPPLIED WITH WATER IN PARALLEL FROM A SOURCE OF HEATED WATER, INCLUDING A HEATING UNIT, WHICH COMPRISES AN INDIVIDUAL OUTLET LINE FROM EACH RADIATOR, A COMMON OUTLET LINE CONNECTED TO THE INDIVIDUAL OUTLET LINES FROM ALL OF SAID RADIATORS, A MODULATING THERMOSTATIC VALVE IN THE INDIVIDUAL OUTLET LINE OF EACH OF SAID RADIATORS, SAID THERMOSTATIC VALVE RESPONDING BOTH TO THE ROOM TEMPERATURE AND TO THE INDIVIDUAL OUTLET LINE WATER TEMPERATURE, AN INLET LINE FROM THE SOURCE OF HEATED WATER TO SAID RADIATORS, AND MEANS FOR MIXING A SELECTED PORTION OF THE WATER CONTAINED IN SAID COMMON OUTLET LINE WITH THE WATER CONTAINE IN SAID INLET LINE, SAID MEANS INCLUDING A MODULATING THREE-WAY VALVE FOR SELECTIVELY DIVIDING THE FLOW OF WATER IN SAID COMMON OUTLET LINE TO SAID INLET LINE AND TO SAID SOURCE OF HEATED WATER, SAID THREE-WAY VALVE BEING REGULATED IN RESPONSE TO THE EXTERIOR TEMPERATURE.
Claim 2
Independent Claim
163 words
A SYSTEM FOR THE MAINTENANCE OF PREDETERMINED TEMPERATURES IN ROOMS PROVIDED WITH A PLURALITY OF RADIATORS SUPPLIED WITH WATER IN PARALLEL FROM A SOURCE OF HEATED WATER, INCLUDING A HEATING UNIT, WHICH COMPRISES AN INDIVIDUAL OUTLET LINE FROM EACH RADIATOR, A COMMON OUTLET LINE CONNECTED TO THE INDIVIDUAL OUTLET LINES FROM ALL OF SAID RADIATORS, A MODULATING THERMOSTATIC VALVE IN THE INDIVIDUAL OUTLET LINE OF EACH OF SAID RADIATORS, SAID THERMOSTATIC VALVE RESPONDING BOTH TO THE ROOM TEMPERATURE AND TO THE INDIVIDUAL OUTLET LINE WATER TEMPERATURE, AN INLET LINE FROM THE SOURCE OF HEATED WATER TO SAID RADIATORS, AND MEANS FOR MIXING A SELECTED PORTION OF THE WATER CONTAINED IN SAID COMMON OUTLET LINE WITH THE WATER CONTAINE IN SAID INLET LINE, SAID MEANS INCLUDING A MODULATING THREE-WAY VALVE FOR SELECTIVELY DIVIDING THE FLOW OF WATER IN SAID COMMON OUTLET LINE TO SAID INLET LINE AND TO SAID SOURCE OF HEATED WATER, SAID THREE-WAY VALVE BEING REGULATED IN RESPONSE TO THE EXTERIOR TEMPERATURE.
References Cited (Backward Citations)
US1931145A
Cited
US2181480A
Cited
US2211573A
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US2342157A
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US2545206A
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US2661906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-02 | 1968-08-03 | 1969-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-02 | 1972-08-03 | 1973-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-02 | 1976-08-03 | 1977-02-02 | $7700.00 | Window Closed / Lapsed |