US3230859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilators
Assignee: Colt Ventilation and Heating Ltd
•
Filing: 1963-12-16
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Granted: 1966-01-25
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Expires: 1983-12-16
Abstract
No abstract record available.
Inventors
- 👤 O'hea Jerome
- 👤 Rampley Kenneth Douglas
- 👤 Cowtan Brian Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:09
CPC Classifications
F; F24; F24F; F24F7/00; F24F7/02; E; E04; E04D; E04D13/00; E04D13/03; E04D13/035; E04D13/0351; E05; E05F; E05F1/00; E05F1/002; E05F1/006; E05F15/00; E05F15/50; E05F15/53; E05Y; E05Y2201/00; E05Y2201/40; E05Y2201/404; E05Y2201/422; E05Y2201/43; E05Y2201/448; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/148; E05Y2900/152; F24F11/00; F24F11/30; F24F11/32; F24F11/33; F24F11/35
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A ROOF VENTILATOR COMPRISING A RIGID FRAMEWORK TO MOUNT ON A ROOF, SAID FRAMEWORK INCLUDING SIDE WALLS DEFINING A MAIN VENTILATOR THROAT AND SUPPORT MEANS EXTENDING UPWARDLY FROM SAID WALLS, AT LEAST ONE COVER MEANS HINGEDLY MOUNTED FROM SAID SUPPORT MEANS AND SPACED ABOVE SAID THROAT FROM MOVEMENT BETWEEN A CLOSED POSITION SHIELDING SAID THROAT AND AN OPEN POSITION NOT SHIELDING SAID THROAT, SAID WALLS AND SAID COVER MEANS DEFINING THERE-BETWEEN AT LEAST ONE SIDE OPENING, BAFFLE MEANS SUPPORTED ON SAID FRAMEWORK AND SPACED LATERALLY OF SAID SIDE OPENING AWAY FROM SAID THROAT TO SHIELD SAID SIDE OPENING, CLOSURE MEANS FOR SAID SIDE OPENING HINGEDLY MOUNTED FROM SAID SUPPLY MEANS FOR MOVEMENT BETWEEN A CLOSED POSITION CLOSING SAID SIDE OPENING AND AN OPEN POSITION OPENING SAID SIDE OPENING, AND MEANS CONNECTED TO SAID COVER AND CLOSURE MEANS AND AUTOMATICALLY OPERABLE RESPONSIVE TO A FIRE CONDITION TO MOVE SAID COVER MEANS TO OPEN POSITION AND SAID CLOSURE MEANS TO CLOSED POSITION.
Claim 2
Dependent Claim
160 words
A ROOF VENTILATOR COMPRISING A RIGID FRAMEWORK TO MOUNT ON A ROOF, SAID FRAMEWORK INCLUDING SIDE WALLS DEFINING A MAIN VENTILATOR THROAT AND SUPPORT MEANS EXTENDING UPWARDLY FROM SAID WALLS, AT LEAST ONE COVER MEANS HINGEDLY MOUNTED FROM SAID SUPPORT MEANS AND SPACED ABOVE SAID THROAT FROM MOVEMENT BETWEEN A CLOSED POSITION SHIELDING SAID THROAT AND AN OPEN POSITION NOT SHIELDING SAID THROAT, SAID WALLS AND SAID COVER MEANS DEFINING THERE-BETWEEN AT LEAST ONE SIDE OPENING, BAFFLE MEANS SUPPORTED ON SAID FRAMEWORK AND SPACED LATERALLY OF SAID SIDE OPENING AWAY FROM SAID THROAT TO SHIELD SAID SIDE OPENING, CLOSURE MEANS FOR SAID SIDE OPENING HINGEDLY MOUNTED FROM SAID SUPPLY MEANS FOR MOVEMENT BETWEEN A CLOSED POSITION CLOSING SAID SIDE OPENING AND AN OPEN POSITION OPENING SAID SIDE OPENING, AND MEANS CONNECTED TO SAID COVER AND CLOSURE MEANS AND AUTOMATICALLY OPERABLE RESPONSIVE TO A FIRE CONDITION TO MOVE SAID COVER MEANS TO OPEN POSITION AND SAID CLOSURE MEANS TO CLOSED POSITION.
References Cited (Backward Citations)
US2733918A
Cited
US2766859A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |