US3109582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable space ventilators
Assignee: Braun GmbH
•
Filing: 1960-06-06
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Granted: 1963-11-05
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Expires: 1980-06-06
Abstract
No abstract record available.
Inventors
- 👤 Braun Artur
- 👤 Mayer Rolf
- 👤 Laing Nikolaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:23
CPC Classifications
F; F04; F04D; F04D17/00; F04D17/02; F04D17/04; F24; F24H; F24H3/00; F24H3/02; F24H3/04; F24H3/0405; F24H3/0411; F24H3/0417
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A PORTABLE SPACE VENTILATOR COMPRISING A CASING OF PARALLELEPIPED SHAPE FORMED OF THREE SHELLS ARRANGED SIDE BY SIDE ALONG THE LONGITUDINAL AXIS OF THE VENTILATOR, A CROSS FLOW BLOWER HAVING A ROTOR HOUSED IN SAID CASING, ELECTRICAL SWITCH MEANS FOR CONTROLLING THE OPERATION OF THE VENTILATOR, AND BEARING MEANS FOR OPPOSITE ENDS OF SAID ROTOR, EACH OF THE OUTER ONES OF SAID SHELLS CONSTITUTING AN END CHEEK OF SAID CASING AND ONE OF SAID CHEEKS SUPPORTING ONE OF SAID BEARING MEANS AND ALSO SUPPORTING SAID SWITCH MEANS, AND THE SHELL BETWEEN SAID TWO OUTER SHELLS HAVING INDUCTION AND DISCHARGE APERTURES FORMED IN ADJACENT FACES THEREOF.
Claim 2
Dependent Claim
105 words
A PORTABLE SPACE VENTILATOR COMPRISING A CASING OF PARALLELEPIPED SHAPE FORMED OF THREE SHELLS ARRANGED SIDE BY SIDE ALONG THE LONGITUDINAL AXIS OF THE VENTILATOR, A CROSS FLOW BLOWER HAVING A ROTOR HOUSED IN SAID CASING, ELECTRICAL SWITCH MEANS FOR CONTROLLING THE OPERATION OF THE VENTILATOR, AND BEARING MEANS FOR OPPOSITE ENDS OF SAID ROTOR, EACH OF THE OUTER ONES OF SAID SHELLS CONSTITUTING AN END CHEEK OF SAID CASING AND ONE OF SAID CHEEKS SUPPORTING ONE OF SAID BEARING MEANS AND ALSO SUPPORTING SAID SWITCH MEANS, AND THE SHELL BETWEEN SAID TWO OUTER SHELLS HAVING INDUCTION AND DISCHARGE APERTURES FORMED IN ADJACENT FACES THEREOF.
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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) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |