US3460628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated tension-torsion tie-bar
Assignee: Bendix Corp
•
Filing: 1961-11-06
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Granted: 1969-08-12
•
Expires: 1981-11-06
Abstract
No abstract record available.
Inventors
- 👤 James A Tankersley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:23
CPC Classifications
F; F16; F16C; F16C7/00; F16C7/02; F16C7/026; B; B64; B64C; B64C27/00; B64C27/54; B64C27/58; B64C27/59; B64C27/605; F16B; F16B2200/00; F16B2200/40; F16B2200/403; F16C2326/00; F16C2326/43; Y; Y10; Y10T; Y10T403/00; Y10T403/34; Y10T403/341; Y10T403/342; Y10T403/45; Y10T428/00; Y10T428/249921; Y10T428/249924; Y10T428/24994; Y10T428/249942
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
159 words
IN A HELICOPTER ROTOR SYSTEM, A ROTOR HUB AND BLADE CONNECTION COMPRISING: A ROTOR HUB SPINDLE; A ROTOR HUB ARM ON SAID SPINDLE; A BEARING MEANS BETWEEN SAID SPINDLE AND SAID ARM; A ROTOR BLADE; A FIRST MEANS TO MOUNT SAID HUB TO SAID ROTOR SYSTEM; A SECOND MEANS TO MOUNT SAID ARM TO SAID BLADE; A PAIR OF BUSHINGS ONE OF WHICH IS OPERATIVELY CONNECTED TO SAID FIRST MEANS AND THE OTHER OF WHICH IS OPERATIVELY CONNECTED TO SAID SECOND MEANS; A LAMINATION OF A BAND OF FILAMENTS INCLUDING INDIVIDUAL, PARALLEL FILAMENTS EACH OF WHICH IS COATED WITH AN ELASTOMERIC SUBSTANCE TO HOLD THE PARALLEL ALIGNMENT OF SAID FILAMENTS, SAID LAMINATION BEING WRAPPED AROUND AND BONDED TO SAID BUSHINGS BY SAID ELASTOMERIC SUBSTANCE TO FORM BETWEEN SAID FIRST AND SECOND MEANS A STRUCTURAL LINK HAVING SIDE PORTIONS WHICH DO NOT OVERLAP ADAPTED TO HAVE AXIAL STRENGTH AND TORSIONAL RESILIENCY IN CONNECTING SAID BLADE TO SAID HELICOPTER ROTOR SYSTEM.
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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) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |