US3321022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary wing assembly
Assignee: Individual
•
Filing: 1964-10-14
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Granted: 1967-05-23
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Expires: 1984-10-14
Abstract
No abstract record available.
Inventors
- 👤 Oguri Yoshiyuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:10
CPC Classifications
B; B64; B64C; B64C29/00; B64C29/0008; B64C29/0016; B64C29/0033; B64C39/00; B64C39/003; B64C39/02; B64C39/026
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
130 words
A ROTARY WING ASSEMBLY, IN WHICH A PRINCIPAL ROTARY SHAFT (1) HAVING A CENTER PORTION OF A ROTARY TRACTIVE ROD (2) FIXEDLY SECURED TO ITS TIP PORTION, IS ROTATABLY MOUNTED IN A PENETRATING BORE (4) OF AN ANNULARLY RECESSED TILTED BEARING BODY (3) HAVING A PERFECT CIRCULAR PERIPHERY RATHER THAN BEING A CAM; IN WHICH FITTING RINGS (7), (7'') HAVING IDLE FOLLOWING RODS (6), (6'') FORMED AT A CERTAIN ANGLE OF SWEEPBACK WITH RESPECT TO THE CENTER LINE OF SAID ANNULARLY RECESSED TILTED BEARING BODY (3), ARE ROTATABLY FITTED AROUND THE ANNULAR RECESS PORTION (5) OF SAID ANNULARLY RECESSED TILTED BEARING BODY SO AS TO FREELY IDLE; AND IN WHICH TENT-LIKE WING SURFACES (8), (8'') ARE STRETCHED BETWEEN THE ROTARY TRACTIVE RODS (2) AND THE IDLE FOLLOWING RODS (6), (6'').
References Cited (Backward Citations)
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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) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |