US4715783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Theft-proofing device for outboard motor propellers
Assignee: Individual
•
Filing: 1986-12-12
•
Granted: 1987-12-29
•
Expires: 2006-12-12
Abstract
Abstract A device is described with two flat bars that link around an outboard motor housing and connect to a blocking cylinder to prevent rotation or removal of a propeller.
Inventors
- 👤 Mark W. Wade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:38
CPC Classifications
E; E05; E05B; E05B73/00; E05B73/007; E05B73/0076; E05B67/00; E05B67/38; E05B67/383; F; F02; F02B; F02B61/00; F02B61/04; F02B61/045; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/5854; Y10T70/5867
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
181 words
A theft-proofing device for a propeller of an outboard motor of the type having a substantially upright drive shaft and a substantially horizontal propeller shaft and housings therefor comprising: (A) a pair of elongated bar means, (B) hinge means connecting together said pair of bar means, (C) tubular blocking means for blocking linear movement of said propeller, (D) forward projections of said blocking means, said projections fitting between and against said blades of said propeller, (E) support means for said tubular means, said support means being slidably positionable on said pair of bar means, and (F) means locking said support means in a fixed position relative to said pair of bar means whereby, said hinge means being positioned against a forward portion of said upright shaft housing with said pair of bar means projecting aft on either side thereof between said blades and above said horizontal shaft housing, said propeller shall be protected from theft or rotation when said projections of said blocking means are inserted against said blades and said locking means is locked in position on said bar means.
Claim 2
Dependent Claim
181 words
A theft-proofing device for a propeller of an outboard motor of the type having a substantially upright drive shaft and a substantially horizontal propeller shaft and housings therefor comprising: (A) a pair of elongated bar means, (B) hinge means connecting together said pair of bar means, (C) tubular blocking means for blocking linear movement of said propeller, (D) forward projections of said blocking means, said projections fitting between and against said blades of said propeller, (E) support means for said tubular means, said support means being slidably positionable on said pair of bar means, and (F) means locking said support means in a fixed position relative to said pair of bar means whereby, said hinge means being positioned against a forward portion of said upright shaft housing with said pair of bar means projecting aft on either side thereof between said blades and above said horizontal shaft housing, said propeller shall be protected from theft or rotation when said projections of said blocking means are inserted against said blades and said locking means is locked in position on said bar means.
Claim 3
Dependent Claim
14 words
The theft-proofing device of claim 1 wherein said hinge means comprises links of chain.
Claim 4
Dependent Claim
27 words
The theft-proofing device of claim 1 wherein said bar means comprises matching perforations and said locking means comprises a padlock comprising a shackle passing through said perforations.
Claim 5
Dependent Claim
43 words
The theft-proofing device of claim 1 wherein said support means comprises a base portion, two spaced-apart, right-angled extensions of said base portion, said extensions defining aligned slots slidably fitting said bar means, and means fixing said support means to said tubular blocking means.
Claim 6
Dependent Claim
52 words
The device of claim 4 wherein said tubular blocking means comprises walls defining parallel circumferential slots and said extensions each project through an associated one of said slots whereby said support means is adjustable relative to said forward projections of said blocking means, said device thereby fitting either left- or right-turning propellers.
Claim 7
Dependent Claim
40 words
The device of claim 5 wherein at least one of said extensions comprises a portion thereof adjacent to said tubular blocking means being bent across its associated of said slots thereby fixing said support means to said tubular blocking means.
Claim 8
Dependent Claim
12 words
The device of claim 1 wherein said tubular blocking means is cylindrical.
Claim 9
Dependent Claim
12 words
The device of claim 5 wherein said tubular blocking means is cylindrical.
References Cited (Backward Citations)
US2362323A
Cited
US3759076A
Cited
US3947151A
Cited
US4167862A
Cited
US3981165A
Cited
CA1028166A
Cited
US4097191A
Cited
US4257247A
Cited
US4285221A
Cited
US4482298A
Cited
US4565533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-12-28 | 1991-06-29 | 1991-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-28 | 1995-06-29 | 1995-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-28 | 1999-06-29 | 1999-12-29 | $7700.00 | Window Closed / Lapsed |