US3128036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine to generate and control an airstream
Assignee: Individual
•
Filing: 1960-10-17
•
Granted: 1964-04-07
•
Expires: 1980-10-17
Abstract
No abstract record available.
Inventors
- 👤 Le Roy C Mcbride
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:58
CPC Classifications
A; A62; A62C; A62C3/00; A62C3/02; A62C3/0207; B; B60; B60P; B60P3/00; B60P3/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A WIND-GENERATING MACHINE COMPRISING A PIVOTED SUPPORT FRAME, AN ENGINE PROVIDED WITH A PROPELLER AND FIXEDLY MOUNTED ON THE FRAME, AN IMPERMEABLE AND CIRCULAR AIR DUCT AROUND AND SPACED FROM SAID ENGINE, A COWL AROUND THE ENGINE AND COOPERATING WITH THE AIR DUCT TO DEFINE AN ANNULAR AIR PASSAGE THEREBETWEEN, MEANS FIXEDLY CONNECTING SAID DUCT AND COWL TO THE FRAME, AN AIRFLOW STRAIGHTENER ON THE OUTER AIR DUCT ON THE DOWNSTREAM THEREOF, AND A TUBULAR EXTENSION FROM SAID CIRCULAR AIR DUCT HAVING A GRADUAL TRANSITIONAL CHANGE FROM A CIRCULAR TO A RECTANGULAR CROSS-SECTIONAL FORM TO PROVIDE A ROTATION-RESISTING RECTANGULAR DISCHARGE OUTLET FOR AIR FORCED BY THE PROPELLER THROUGH THE AIR-FLOW STRAIGHTENER.
Claim 2
Dependent Claim
111 words
A WIND-GENERATING MACHINE COMPRISING A PIVOTED SUPPORT FRAME, AN ENGINE PROVIDED WITH A PROPELLER AND FIXEDLY MOUNTED ON THE FRAME, AN IMPERMEABLE AND CIRCULAR AIR DUCT AROUND AND SPACED FROM SAID ENGINE, A COWL AROUND THE ENGINE AND COOPERATING WITH THE AIR DUCT TO DEFINE AN ANNULAR AIR PASSAGE THEREBETWEEN, MEANS FIXEDLY CONNECTING SAID DUCT AND COWL TO THE FRAME, AN AIRFLOW STRAIGHTENER ON THE OUTER AIR DUCT ON THE DOWNSTREAM THEREOF, AND A TUBULAR EXTENSION FROM SAID CIRCULAR AIR DUCT HAVING A GRADUAL TRANSITIONAL CHANGE FROM A CIRCULAR TO A RECTANGULAR CROSS-SECTIONAL FORM TO PROVIDE A ROTATION-RESISTING RECTANGULAR DISCHARGE OUTLET FOR AIR FORCED BY THE PROPELLER THROUGH THE AIR-FLOW STRAIGHTENER.
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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) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |