Patent US3144909A successfully refreshed from Google Patents.
US3144909A
Expired / Lapsed
US
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Propeller retention means
Assignee: Mcculloch Corp
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Filing: 1962-02-09
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Granted: 1964-08-18
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Expires: 1982-02-09
Abstract
No abstract record available.
Inventors
- 👤 Dexter R Hart
- 👤 Kurt O W Moebius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:38
CPC Classifications
B; B63; B63H; B63H1/00; B63H1/02; B63H1/12; B63H1/14; B63H1/20; B63H23/00; B63H23/32; B63H23/34; B63H2023/342; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7018
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN A MARINE ENGINE HAVING A PROPELLER SHAFT, A PROPELLER HUB MOUNTED ON SAID SHAFT, SAID SHAFT HAVING A SHOULDER THEREON FACING THE HUB, A RETAINER FOR PROHIBITING AXIAL MOVEMENT OF THE PROPELLER HUB ALONG THE PROPELLER SHAFT, WHICH COMPRISES AN ANNULAR RETENTION MEMBER ENCIRCLING THE SHAFT ADJACENT THE SHOULDER, SAID RETENTION MEMBER HAVING A SLOT EXTENDING RADIALLY THERETHROUGH, SAID SLOT BEING REDUCED IN WIDTH BY A SHOULDER NEAR THE OUTER PERIPHERY OF THE RETENTION MEMBER, A USHAPED RETENTION CLIP HELD IN SAID SLOT FOR RADIAL SLIDING MOVEMENT BETWEEN A LOCKING POSITION WITH THE LEGS OF THE CLIP ENGAGING AGAINST SAID FIRST MENTIONED SHOULDER AND A RADIALLY OUTWARD SHOULDER RELEASING POSITION ALLOWING AXIAL MOVEMENT OF THE RETENTION CLIP, AND SAID CLIP LEGS HAVING PORTIONS SPACED APART GREATER THAN THE WIDTH OF SAID SLOT REDUCED PORTION PROHIBITING COMPLETE OUTWARD REMOVAL OF THE CLIP FROM THE RETENTION MEMBER.
Claim 2
Dependent Claim
146 words
IN A MARINE ENGINE HAVING A PROPELLER SHAFT, A PROPELLER HUB MOUNTED ON SAID SHAFT, SAID SHAFT HAVING A SHOULDER THEREON FACING THE HUB, A RETAINER FOR PROHIBITING AXIAL MOVEMENT OF THE PROPELLER HUB ALONG THE PROPELLER SHAFT, WHICH COMPRISES AN ANNULAR RETENTION MEMBER ENCIRCLING THE SHAFT ADJACENT THE SHOULDER, SAID RETENTION MEMBER HAVING A SLOT EXTENDING RADIALLY THERETHROUGH, SAID SLOT BEING REDUCED IN WIDTH BY A SHOULDER NEAR THE OUTER PERIPHERY OF THE RETENTION MEMBER, A USHAPED RETENTION CLIP HELD IN SAID SLOT FOR RADIAL SLIDING MOVEMENT BETWEEN A LOCKING POSITION WITH THE LEGS OF THE CLIP ENGAGING AGAINST SAID FIRST MENTIONED SHOULDER AND A RADIALLY OUTWARD SHOULDER RELEASING POSITION ALLOWING AXIAL MOVEMENT OF THE RETENTION CLIP, AND SAID CLIP LEGS HAVING PORTIONS SPACED APART GREATER THAN THE WIDTH OF SAID SLOT REDUCED PORTION PROHIBITING COMPLETE OUTWARD REMOVAL OF THE CLIP FROM THE RETENTION MEMBER.
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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) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |