Covington; Cecil E.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Covington; Cecil E..The latest application filed is for "rotor system vibration absorber".
- Covington; Cecil E. - Azle TX
- Covington; Cecil E. - late of Azle TX
- Covington; Cecil E. - Hurst TX
| Patent | Date |
|---|---|
| Rotor system vibration absorber App 20060222505 - Sehgal; Ajay ; et al. | 2006-10-05 |
| Coupled aircraft rotor system Grant 6,616,095 - Stamps , et al. September 9, 2 | 2003-09-09 |
| Coupled aircraft rotor system App 20020134883 - Stamps, Frank B. ; et al. | 2002-09-26 |
| Rotor blade stowing system Grant 5,868,351 - Stamps , et al. February 9, 1 | 1999-02-09 |
| Rotor system vibration absorber Grant 5,647,726 - Sehgal , et al. July 15, 1 | 1997-07-15 |
| Yoke for helicopter rotor systems Grant 5,358,381 - Covington , et al. October 25, 1 | 1994-10-25 |
| Rotor blade Grant 5,074,753 - Covington , et al. December 24, 1 | 1991-12-24 |
| Apparatus and method for folding and locking rotor blades Grant 5,031,858 - Schellhase , et al. July 16, 1 | 1991-07-16 |
| Soft inplane bearingless helicopter rotor Grant 4,427,340 - Metzger , et al. January 24, 1 | 1984-01-24 |
| Soft inplane helicopter rotor Grant 4,257,739 - Covington , et al. March 24, 1 | 1981-03-24 |
| Helicopter blade folding system Grant 4,252,504 - Covington , et al. February 24, 1 | 1981-02-24 |
| Helicopter blade structure Grant 4,120,610 - Braswell , et al. October 17, 1 | 1978-10-17 |
| Four Blade Main Rotor Control Power Coupling Grant 3,804,552 - Covington April 16, 1 | 1974-04-16 |
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