US4257247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boat propellor security device
Assignee: Individual
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Filing: 1978-08-07
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Granted: 1981-03-24
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Expires: 1998-08-07
Abstract
Abstract A security device for a boat propellor that is retained by a releasable lock to a propellor shaft has been developed and is disclosed as including cover means to prevent access to the releasable lock on the propellor shaft, and means for releasably retaining the cover means to the propellor to prevent unauthorized removal thereof.
Inventors
- 👤 Gary F. Sims
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:45
CPC Classifications
E; E05; E05B; E05B73/00; E05B73/007; E05B73/0076; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/5854; Y10T70/5867
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
120 words
A security device for a boat propellor that is retained by a releasable lock to a propellor shaft, comprising cover means to prevent access to the releasable lock on the propellor shaft, means for releasably retaining the cover means to the propellor to prevent unauthorized removal of the boat propellor including means extending from said cover means and terminating in enclosed foot sections at the free ends thereof, each of said enclosed foot portions being positioned adjacent one side of said propellor blades opposite from said cover means when said cover means is mounted in place on said propellor, and releasable retaining means extending through the enclosed foot sections to prevent unauthorized disassembly of the security device form the propellor.
Claim 2
Dependent Claim
120 words
A security device for a boat propellor that is retained by a releasable lock to a propellor shaft, comprising cover means to prevent access to the releasable lock on the propellor shaft, means for releasably retaining the cover means to the propellor to prevent unauthorized removal of the boat propellor including means extending from said cover means and terminating in enclosed foot sections at the free ends thereof, each of said enclosed foot portions being positioned adjacent one side of said propellor blades opposite from said cover means when said cover means is mounted in place on said propellor, and releasable retaining means extending through the enclosed foot sections to prevent unauthorized disassembly of the security device form the propellor.
Claim 3
Dependent Claim
29 words
The security device as defined in claim 1 wherein each of said leg means is configured to provide at least one opening therein to provide said enclosed foot portion.
Claim 4
Dependent Claim
28 words
The security device as defined in claim 1 wherein said releasable retaining means includes elongated strand means having the opposite free ends thereof being secured by lock means.
Claim 5
Dependent Claim
91 words
A security device for a boat propellor that is retained by a releasable lock to a propellor shaft, comprising cover means to prevent access to the releasable lock on the propellor shaft, leg means attached to said cover means which terminate in free end portions which extend slightly past the blades of the propellor, each of said leg means having openings therethrough at the free end portions thereof for receiving releasable retaining means that encircle the propellor immediately below the propellor blades, whereby unauthorized removal of the boat propellor is precluded.
Claim 6
Dependent Claim
91 words
A security device for a boat propellor that is retained by a releasable lock to a propellor shaft, comprising cover means to prevent access to the releasable lock on the propellor shaft, leg means attached to said cover means which terminate in free end portions which extend slightly past the blades of the propellor, each of said leg means having openings therethrough at the free end portions thereof for receiving releasable retaining means that encircle the propellor immediately below the propellor blades, whereby unauthorized removal of the boat propellor is precluded.
Claim 7
Dependent Claim
27 words
The security device as defined in claim 4 wherein said cover means has both cover and cup portions for encompassing the releasable lock on the propellor shaft.
Claim 8
Dependent Claim
23 words
The security device as defined in claim 5 wherein there are three leg means corresponding to the three blades of the boat propellor.
Claim 9
Dependent Claim
38 words
The security device as defined in claim 6 wherein each leg means is attached to the cup portion of said cover means and is configured to extend downwardly from the cover means on the outside of the propellor.
Claim 10
Dependent Claim
30 words
The security device as defined in claim 7 wherein said releasable retaining means is configured and arranged to snugly embrace the outer surface of the propellor below the propellor blades.
Claim 11
Dependent Claim
96 words
A security device for preventing the unauthorized removal of a boat propellor from a shaft, the propellor having a central end opening wherein a releasable lock secures the propellor to the shaft, said security device including a cover means at least partially enclosing the central end opening and thereby restricting access to the releasable lock on the propellor shaft, at least two legs extending forwardly of the propellor blades, and means for extending circumferentially around the propellor and between the forward ends of said legs to prevent unauthorized removal of the security device and boat propellor.
Claim 12
Dependent Claim
96 words
A security device for preventing the unauthorized removal of a boat propellor from a shaft, the propellor having a central end opening wherein a releasable lock secures the propellor to the shaft, said security device including a cover means at least partially enclosing the central end opening and thereby restricting access to the releasable lock on the propellor shaft, at least two legs extending forwardly of the propellor blades, and means for extending circumferentially around the propellor and between the forward ends of said legs to prevent unauthorized removal of the security device and boat propellor.
Claim 13
Dependent Claim
24 words
The security device as defined in claim 9 wherein said cover means includes cup means for encompassing the releasable lock on the propellor shaft.
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) | 1984-03-23 | 1984-09-22 | 1985-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-23 | 1988-09-22 | 1989-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-23 | 1992-09-22 | 1993-03-24 | $7700.00 | Window Closed / Lapsed |