US3106965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor head
Assignee: Lord Manufacturing Co
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Filing: 1961-10-02
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Granted: 1963-10-15
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Expires: 1981-10-02
Abstract
No abstract record available.
Inventors
- 👤 John H Gorndt
- 👤 Robert R Peterson
- 👤 Warren E Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:25
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/32; B64C27/35
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A ROTOR HEAD COMPRISING A ROTOR SHAFT HUB HAVING A PLURALITY OF DRIVE MEANS, EACH FOR A BLADE HAVING A RADIALLY EXTENDING AXIS, A JOINT BETWEEN THE BLADE AND ITS ASSOCIATED ARM COMPRISING A MEMBER FIXED TO THE BLADE HAVING A SURFACE TRANSVERSE TO SAID AXIS AND SPACED FROM AND PRESENTED TOWARD THE BLADE AND AWAY FROM THE ASSOCIATED ARM, ANOTHER MEMBER FIXED TO SAID ARM HAVING A SURFACE TRANSVERSE TO SAID AXIS AND SPACED RADIALLY OUTWARD OF AND PRESENTED TOWARD SAID FIRST SURFACE, A PLURALITY OF PLATES OF NONEXTENSIBLE MATERIAL TRANSVERSE TO AND SPACED ALONG SAID AXIS BETWEEN SAID SURFACES, LAYERS OF ELASTOMER INTERSPERSED BETWEEN SAID PLATES AND BETWEEN SAID PLATES AND SAID SURFACES AND BONDED TO SAID PLATES AND SURFACES, AND PITCH CONTROL MEANS CONNECTED TO SAID FIRST MEMBER FOR TWISTING THE FIRST MEMBER RELATIVE TO SAID OTHER MEMBER TO CONTROL THE PITCH OF THE BLADE.
Claim 2
Dependent Claim
148 words
A ROTOR HEAD COMPRISING A ROTOR SHAFT HUB HAVING A PLURALITY OF DRIVE MEANS, EACH FOR A BLADE HAVING A RADIALLY EXTENDING AXIS, A JOINT BETWEEN THE BLADE AND ITS ASSOCIATED ARM COMPRISING A MEMBER FIXED TO THE BLADE HAVING A SURFACE TRANSVERSE TO SAID AXIS AND SPACED FROM AND PRESENTED TOWARD THE BLADE AND AWAY FROM THE ASSOCIATED ARM, ANOTHER MEMBER FIXED TO SAID ARM HAVING A SURFACE TRANSVERSE TO SAID AXIS AND SPACED RADIALLY OUTWARD OF AND PRESENTED TOWARD SAID FIRST SURFACE, A PLURALITY OF PLATES OF NONEXTENSIBLE MATERIAL TRANSVERSE TO AND SPACED ALONG SAID AXIS BETWEEN SAID SURFACES, LAYERS OF ELASTOMER INTERSPERSED BETWEEN SAID PLATES AND BETWEEN SAID PLATES AND SAID SURFACES AND BONDED TO SAID PLATES AND SURFACES, AND PITCH CONTROL MEANS CONNECTED TO SAID FIRST MEMBER FOR TWISTING THE FIRST MEMBER RELATIVE TO SAID OTHER MEMBER TO CONTROL THE PITCH OF THE BLADE.
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) | 1966-10-14 | 1967-04-15 | 1967-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-14 | 1971-04-15 | 1971-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-14 | 1975-04-15 | 1975-10-15 | $7700.00 | Window Closed / Lapsed |