Patent US3394522A successfully refreshed from Google Patents.
Patent US3341689A successfully refreshed from Google Patents.
US3341689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air heating and circulating device having an oscillating fan blade
Assignee: Individual
•
Filing: 1965-03-24
•
Granted: 1967-09-12
•
Expires: 1985-03-24
Abstract
No abstract record available.
Inventors
- 👤 Bruno E Reichenbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:51
CPC Classifications
F; F24; F24H; F24H3/00; F24H3/02; F24H3/04; F24H3/0405; F24H3/0411; F24H3/0417
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A FILTERED AIR CIRCULATION DEVICE, COMPRISING AN ENCLOSURE HAVING A CLOSED TOP WALL, BOTTOM WALL, BACK WALL, SIDE WALLS, AND AN OPEN FRONT, A PARTITION IN SAID ENCLOSURE DIVIDING THE INTERIOR THEREOF INTO A FRONT COMPARTMENT AND TWO SEPARATED REAR COMPARTMENTS, A VERTICALLY DISPOSED BLADE IN THE FRONT COMPARTMENT, MEANS MOUNTING SAID BLADE IN SAID FRONT COMPARTMENT SO THAT THE BLADE IS OSCILLATABLE LATERALLY ON AN AXIS AT ONE EDGE THEREOF, SAID BLADE HAVING A FREE EDGE LOCATED NEAR THE OPEN FRONT OF THE ENCLOSURE, SAID PARTITION HAVING OPENINGS THEREIN PROVIDING COMMUNICATION BETWEEN THE FRONT COMPARTMENT AND BOTH NEAR COMPARTMENTS, DIAPHRAGM MEMBERS ON SAID PARTITION AT SAID OPENINGS FOR ADMITTING AIR INTO THE FRONT COMPARTMENT FROM THE NEAR COMPARTMENT WHEN AIR PRESSURE IN THE REAR COMPARTMENTS IS HIGHER THAN IN THE FRONT COMPARTMENT, TWO SOLENOIDS HAVING CURVED CAVITIES
Claim 2
Dependent Claim
138 words
A FILTERED AIR CIRCULATION DEVICE, COMPRISING AN ENCLOSURE HAVING A CLOSED TOP WALL, BOTTOM WALL, BACK WALL, SIDE WALLS, AND AN OPEN FRONT, A PARTITION IN SAID ENCLOSURE DIVIDING THE INTERIOR THEREOF INTO A FRONT COMPARTMENT AND TWO SEPARATED REAR COMPARTMENTS, A VERTICALLY DISPOSED BLADE IN THE FRONT COMPARTMENT, MEANS MOUNTING SAID BLADE IN SAID FRONT COMPARTMENT SO THAT THE BLADE IS OSCILLATABLE LATERALLY ON AN AXIS AT ONE EDGE THEREOF, SAID BLADE HAVING A FREE EDGE LOCATED NEAR THE OPEN FRONT OF THE ENCLOSURE, SAID PARTITION HAVING OPENINGS THEREIN PROVIDING COMMUNICATION BETWEEN THE FRONT COMPARTMENT AND BOTH NEAR COMPARTMENTS, DIAPHRAGM MEMBERS ON SAID PARTITION AT SAID OPENINGS FOR ADMITTING AIR INTO THE FRONT COMPARTMENT FROM THE NEAR COMPARTMENT WHEN AIR PRESSURE IN THE REAR COMPARTMENTS IS HIGHER THAN IN THE FRONT COMPARTMENT, TWO SOLENOIDS HAVING CURVED CAVITIES
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |