US3252687A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor blade locking
Assignee: Motors Liquidation Co
•
Filing: 1965-02-01
•
Granted: 1966-05-24
•
Expires: 1985-02-01
Abstract
No abstract record available.
Inventors
- 👤 Beck Timothy Egerton Herbert
- 👤 Banks Charles Emerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:11
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/30; F01D5/3023; F01D5/303; F01D5/3038
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A BLADED MEMBER COMPRISING: AN ANNULAR SUPPORT MEMBER, A DOVETAIL CIRCUMFERENTIAL GROOVE IN THE PERIPHERY OF SAID SUPPORT, SAID CIRCUMFERENTIAL GROOVE INCLUDING A LOADING SLOT, A PLURALITY OF BLADES HAVING ROOTS ADAPTED TO BE INSERTED RADIALLY INTO SAID LOADING SLOT SLIDEABLY RETAINED IN SAID GROOVE, A PLURALITY OF SPACERS HAVING ROOTS ADAPTED TO BE INSERTED RADIALLY INTO SAID LOADING SLOT SLIDEABLY RETAINED IN SAID GROOVE AND ALTERNATED WITH SAID BLADES, A BLADE LOCK SLIDEABLY RETAINED IN SAID GROOVE AND SPANNING SAID LOADING SLOT, SAID BLADE LOCK INCLUDING TWO OF SAID BLADES AND AND INTERMEDIATE SPACER, THE ROOTS OF SAID TWO BLADES AND SPACER BEING SHALLOWER THAN THE REMAINING ROOTS TO FORM SHOULDERS WITH THE
Claim 2
Dependent Claim
114 words
A BLADED MEMBER COMPRISING: AN ANNULAR SUPPORT MEMBER, A DOVETAIL CIRCUMFERENTIAL GROOVE IN THE PERIPHERY OF SAID SUPPORT, SAID CIRCUMFERENTIAL GROOVE INCLUDING A LOADING SLOT, A PLURALITY OF BLADES HAVING ROOTS ADAPTED TO BE INSERTED RADIALLY INTO SAID LOADING SLOT SLIDEABLY RETAINED IN SAID GROOVE, A PLURALITY OF SPACERS HAVING ROOTS ADAPTED TO BE INSERTED RADIALLY INTO SAID LOADING SLOT SLIDEABLY RETAINED IN SAID GROOVE AND ALTERNATED WITH SAID BLADES, A BLADE LOCK SLIDEABLY RETAINED IN SAID GROOVE AND SPANNING SAID LOADING SLOT, SAID BLADE LOCK INCLUDING TWO OF SAID BLADES AND AND INTERMEDIATE SPACER, THE ROOTS OF SAID TWO BLADES AND SPACER BEING SHALLOWER THAN THE REMAINING ROOTS TO FORM SHOULDERS WITH THE
References Cited (Backward Citations)
US775108A
Cited
US943348A
Cited
US1062737A
Cited
CH124821A
Cited
CH341511A
Cited
US3076633A
Cited
GB827264A
Cited
DE1085643B
Cited
US3053504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |