Patent US3076469A successfully refreshed from Google Patents.
US3076469A
Expired / Lapsed
US
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Fire safety damper units
Assignee: Titus Manufacturing Corp
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Filing: 1961-03-29
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Granted: 1963-02-05
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Expires: 1981-03-29
Abstract
No abstract record available.
Inventors
- 👤 Eugene F Averill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:41
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/36; F16K17/38; F16K17/383; A; A62; A62C; A62C2/00; A62C2/06; A62C2/12; A62C2/14; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1797; Y10T137/1812
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A FIRE SAFETY DAMPER COMPRISING A HOLLOW DAMPER HOUSING, A PAIR OF PIVOTABLE VANE ELEMENTS PIVOTALLY MOUNTED IN SAID HOUSING, SAID VANE ELEMENTS ADAPTED TO SUBSTANTIALLY COMPLETELY CLOSE OFF SAID HOUSING TO GAS FLOW WHEN THE ELEMENTS ARE IN THE CLOSED POSITION, MEANS FOR HOLDING THE ELEMENTS IN AN OPEN POSITION COMPRISING A FUSIBLE LINK CONNECTED TO THE RESPECTIVE VANE ELEMENTS WHEN THEY ARE IN THE OPEN POSITION, AND BIAS MEANS CONNECTING SAID VANE ELEMENTS AND ADAPTED TO SNAP SAID VANE
Claim 2
Dependent Claim
81 words
A FIRE SAFETY DAMPER COMPRISING A HOLLOW DAMPER HOUSING, A PAIR OF PIVOTABLE VANE ELEMENTS PIVOTALLY MOUNTED IN SAID HOUSING, SAID VANE ELEMENTS ADAPTED TO SUBSTANTIALLY COMPLETELY CLOSE OFF SAID HOUSING TO GAS FLOW WHEN THE ELEMENTS ARE IN THE CLOSED POSITION, MEANS FOR HOLDING THE ELEMENTS IN AN OPEN POSITION COMPRISING A FUSIBLE LINK CONNECTED TO THE RESPECTIVE VANE ELEMENTS WHEN THEY ARE IN THE OPEN POSITION, AND BIAS MEANS CONNECTING SAID VANE ELEMENTS AND ADAPTED TO SNAP SAID VANE
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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) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |