Patent US3195441A successfully refreshed from Google Patents.
US3195441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air diffusers
Assignee: HART AND COOLEY Manufacturing CO
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Filing: 1963-02-13
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Granted: 1965-07-20
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Expires: 1983-02-13
Abstract
No abstract record available.
Inventors
- 👤 Warren R Hedrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:58
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F13/075
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
218 words
AN AIR DIFFUSER COMPRISING (A) A HOUSING HAVING (1) AN UPWARDLY FACING TOP WALL, AND (2) HORIZONTALLY FACING END WALLS, (B) SAID HOUSING HAVING (1) AIR INLET MEANS FOR FEEDING AIR INTO SAID HOUSING, AND (2) AIR OUTLET MEANS IN SAID TOP WALL ANDF IN SAID END WALLS FOR FEEDING SAID AIR OUT OF SAID HOUSING, (C) SAID OUTLET MEANS IN SAID TOP WALL BEING DISPOSED IN POSITION TO DISCHARGE SAID AIR FROM SAID HOUSING IN A MORE UPWARD DIRECTION THAN SAID OUTLET MEANS IN SAID END WALLS, (D) HEAT SENSITIVE MEANS, OPERABLE IN RESPONSE TO TEMPERATURE CHANGES, MOUNTED IN SAID HOUSING IN POSITION TO BE RESPONSIVE TO CHANGES IN THE TEMPERATURE OF SAID AIR PASSING THROUGH SAID HOUSING, (E) BAFFLE MEANS PROJECTING DOWNWARDLY AND INWARDLY FROM SAID END WALLS AND PIVOTABLY MOUNTED IN SAID HOUSING, AND (F) MEANS CONNECTING SAID HEAT-SENSITIVE MEANS TO SAID BAFFLE MEANS FOR MOVEMENT OF SAID BAFFLE MEANS BETWEEN A RAISED POSITION AND A LOWERED POSITION FOR PROGRESSIVELY OPENING AND CLOSING COMMUNICATION BETWEEN SAID AIR INLET MEANS AND SAID AIR OUTLET MEANS IN SAID END WALLS IN RESPONSE TO RAISING AND LOWERING, RESPECTIVELY, OF THE TEMPERATURE OF SAID AIR PASSING THROUGLH SAID HOUSING, WITHOUT SUBSTANTIALLY OPENING OR CLOSING COMMUNICATION BETWEEN SAID AIR INLET MEANS AND SAID AIR OUTLET MEANS IN SAID TOP WALL.
Claim 2
Dependent Claim
218 words
AN AIR DIFFUSER COMPRISING (A) A HOUSING HAVING (1) AN UPWARDLY FACING TOP WALL, AND (2) HORIZONTALLY FACING END WALLS, (B) SAID HOUSING HAVING (1) AIR INLET MEANS FOR FEEDING AIR INTO SAID HOUSING, AND (2) AIR OUTLET MEANS IN SAID TOP WALL ANDF IN SAID END WALLS FOR FEEDING SAID AIR OUT OF SAID HOUSING, (C) SAID OUTLET MEANS IN SAID TOP WALL BEING DISPOSED IN POSITION TO DISCHARGE SAID AIR FROM SAID HOUSING IN A MORE UPWARD DIRECTION THAN SAID OUTLET MEANS IN SAID END WALLS, (D) HEAT SENSITIVE MEANS, OPERABLE IN RESPONSE TO TEMPERATURE CHANGES, MOUNTED IN SAID HOUSING IN POSITION TO BE RESPONSIVE TO CHANGES IN THE TEMPERATURE OF SAID AIR PASSING THROUGH SAID HOUSING, (E) BAFFLE MEANS PROJECTING DOWNWARDLY AND INWARDLY FROM SAID END WALLS AND PIVOTABLY MOUNTED IN SAID HOUSING, AND (F) MEANS CONNECTING SAID HEAT-SENSITIVE MEANS TO SAID BAFFLE MEANS FOR MOVEMENT OF SAID BAFFLE MEANS BETWEEN A RAISED POSITION AND A LOWERED POSITION FOR PROGRESSIVELY OPENING AND CLOSING COMMUNICATION BETWEEN SAID AIR INLET MEANS AND SAID AIR OUTLET MEANS IN SAID END WALLS IN RESPONSE TO RAISING AND LOWERING, RESPECTIVELY, OF THE TEMPERATURE OF SAID AIR PASSING THROUGLH SAID HOUSING, WITHOUT SUBSTANTIALLY OPENING OR CLOSING COMMUNICATION BETWEEN SAID AIR INLET MEANS AND SAID AIR OUTLET MEANS IN SAID TOP WALL.
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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |