US3410288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Relief valve for flue system
Assignee: Jeep Corp
•
Filing: 1963-05-01
•
Granted: 1968-11-12
•
Expires: 1983-05-01
Abstract
No abstract record available.
Inventors
- 👤 Ernest E Hajek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:17
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/38; C21C5/40; Y; Y02; Y02P; Y02P10/00; Y02P10/25; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1789; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/7722; Y10T137/7758; Y10T137/7762; Y10T137/7837; Y10T137/7838; Y10T137/7846
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
AN EMERGENCY RELIEF VALVE FOR A FLUE SYSTEM FOR CARRYING GAS WHICH COMPRISES MEANS DEFINING A VENT IN THE FLUE SYSTEM, A PIVOTED FLAP POSITIONED TO BE HELD BY GRAVITY IN SEALING RELATIONSHIP WITH SAID VENT, A MOTOR CONNECTED TO MOVE SAID FLAP OUT OF SEALING RELATIONSHIP WITH SAID VENT, AND MEANS RESPONSIVE TO A CONDITION WITHIN SAID FLUE SYSTEM TO ACTUATE SAID MOTOR, WHEREIN SAID FLAP IS PROVIDED WITH AN OPENING AND SAID OPENING IS SEALED WITH A RUPTURE DISC COMPRISING A PERFORATED MEMBER ON THE EXTERIOR SIDE OF WHICH A SHEET OF HEAT RESISTANT MATERIAL IS PLACED, SAID SHEET HAVING A THICKNESS SUCH THAT IT IS READILY RUPTURED BY A SMALL POSITIVE GAUGE PRESSURE IN SAID FLUE SYSTEM.
Claim 2
Dependent Claim
120 words
AN EMERGENCY RELIEF VALVE FOR A FLUE SYSTEM FOR CARRYING GAS WHICH COMPRISES MEANS DEFINING A VENT IN THE FLUE SYSTEM, A PIVOTED FLAP POSITIONED TO BE HELD BY GRAVITY IN SEALING RELATIONSHIP WITH SAID VENT, A MOTOR CONNECTED TO MOVE SAID FLAP OUT OF SEALING RELATIONSHIP WITH SAID VENT, AND MEANS RESPONSIVE TO A CONDITION WITHIN SAID FLUE SYSTEM TO ACTUATE SAID MOTOR, WHEREIN SAID FLAP IS PROVIDED WITH AN OPENING AND SAID OPENING IS SEALED WITH A RUPTURE DISC COMPRISING A PERFORATED MEMBER ON THE EXTERIOR SIDE OF WHICH A SHEET OF HEAT RESISTANT MATERIAL IS PLACED, SAID SHEET HAVING A THICKNESS SUCH THAT IT IS READILY RUPTURED BY A SMALL POSITIVE GAUGE PRESSURE IN SAID FLUE SYSTEM.
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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) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |