US3209809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burner installation controlled by a flame detector
Assignee: Individual
•
Filing: 1962-09-11
•
Granted: 1965-10-05
•
Expires: 1982-09-11
Abstract
No abstract record available.
Inventors
- 👤 Nielsen Egon
- 👤 Olsen Gunnar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:15
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/04; F23N5/045; F23N5/20; G; G01; G01N; G01N2333/00; G01N2333/435; G01N2333/745
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A BURNER INSTALLATION COMPRISING AN ELECTRIC MOTOR FOR FEEDING FUEL TO A BURNER, AN IGNITION DEVICE, A FLAME DETECTOR, A CIRCUIT FOR SUPPLYING CURRENT TO SAID MOTOR, SAID IGNITION DEVICE, AND SAID FLAME DETECTOR, AND A SAFETY SWITCH INCLUDING CONTACT MEANS FOR CLOSING SAID CIRCUIT, AND TWO ACTUATING MEANS FOR OPENING SAID CONTACT MEANS, THE FIRST OF SAID ACTUATING MEANS BEING CONNECTED IN CIRCUIT WITH SAID MOTOR SO AS TO BE RESPONSIVE TO MOTOR CURRENT AND BEING ADAPTED TO CAUSE SAID CONTACT MEANS TO OPEN UPON A PREDETERMINED MALFUNCTION OF SAID MOTOR, AND THE SECOND OF SAID ACTUATING MEANS BEING GOVERNED BY THE REACTION OF SAID FLAME DETECTOR WITH RESPECT TO SAID IGNITION DEVICE AND ADAPTED TO CAUSED SAID CONTACT MEANS TO OPEN UPON A PREDETERMINED MALFUNCTION OF SAID IGNITION DEVICE.
Claim 2
Dependent Claim
131 words
A BURNER INSTALLATION COMPRISING AN ELECTRIC MOTOR FOR FEEDING FUEL TO A BURNER, AN IGNITION DEVICE, A FLAME DETECTOR, A CIRCUIT FOR SUPPLYING CURRENT TO SAID MOTOR, SAID IGNITION DEVICE, AND SAID FLAME DETECTOR, AND A SAFETY SWITCH INCLUDING CONTACT MEANS FOR CLOSING SAID CIRCUIT, AND TWO ACTUATING MEANS FOR OPENING SAID CONTACT MEANS, THE FIRST OF SAID ACTUATING MEANS BEING CONNECTED IN CIRCUIT WITH SAID MOTOR SO AS TO BE RESPONSIVE TO MOTOR CURRENT AND BEING ADAPTED TO CAUSE SAID CONTACT MEANS TO OPEN UPON A PREDETERMINED MALFUNCTION OF SAID MOTOR, AND THE SECOND OF SAID ACTUATING MEANS BEING GOVERNED BY THE REACTION OF SAID FLAME DETECTOR WITH RESPECT TO SAID IGNITION DEVICE AND ADAPTED TO CAUSED SAID CONTACT MEANS TO OPEN UPON A PREDETERMINED MALFUNCTION OF SAID IGNITION DEVICE.
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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |