US3106175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-regulating draft producer and equalizer
Assignee: Individual
•
Filing: 1962-02-09
•
Granted: 1963-10-08
•
Expires: 1982-02-09
Abstract
No abstract record available.
Inventors
- 👤 Donald C Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:29
CPC Classifications
F; F23; F23L; F23L17/00; F23L17/16; F23L2700/00; F23L2700/001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A DRAFT CONTROL ATTACHMENT FOR A COMBUSTION HEATER COMPRISING IN COMBINATION, A COMBUSTION HEATER, A CHIMNEY, A STACK, SAID STACK COMMUNICATIVELY INTERCONNECTING SAID HEATER WITH SAID CHIMNEY, SAID ATTACHMENT COMPRISING NOZZLES IN COMMUNICATION WITH THE INTERIOR OF THE STACK WITH THEIR OUTLETS DIRECTED RESPECTIVELY TOWARD THE HEATER AND TOWARD THE CHIMNEY, POWER DIRVEN FANS COMMUNICATING WITH SAID NOZZLES, VANES FOR CONTROLLING THE OUTPUT OF SAID FANS, STACK PRESSURE AND DRAFT RESPONSIVE MEANS CARRIED BY THE ATTACHMENT AND OPERATIVLEY CONNECTED TO SAID FAN OUTPUT CONTROL VANES FOR SELECTIVELY SUPPLYING THE OUTPUT OF THE FANS IN EITHER OF SAID DIRECTIONS WITHIN SAID STACK.
Claim 2
Dependent Claim
101 words
A DRAFT CONTROL ATTACHMENT FOR A COMBUSTION HEATER COMPRISING IN COMBINATION, A COMBUSTION HEATER, A CHIMNEY, A STACK, SAID STACK COMMUNICATIVELY INTERCONNECTING SAID HEATER WITH SAID CHIMNEY, SAID ATTACHMENT COMPRISING NOZZLES IN COMMUNICATION WITH THE INTERIOR OF THE STACK WITH THEIR OUTLETS DIRECTED RESPECTIVELY TOWARD THE HEATER AND TOWARD THE CHIMNEY, POWER DIRVEN FANS COMMUNICATING WITH SAID NOZZLES, VANES FOR CONTROLLING THE OUTPUT OF SAID FANS, STACK PRESSURE AND DRAFT RESPONSIVE MEANS CARRIED BY THE ATTACHMENT AND OPERATIVLEY CONNECTED TO SAID FAN OUTPUT CONTROL VANES FOR SELECTIVELY SUPPLYING THE OUTPUT OF THE FANS IN EITHER OF SAID DIRECTIONS WITHIN SAID STACK.
References Cited (Backward Citations)
US2348950A
Cited
US2397870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-07 | 1967-04-08 | 1967-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-07 | 1971-04-08 | 1971-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-07 | 1975-04-08 | 1975-10-08 | $7700.00 | Window Closed / Lapsed |