Patent US4317655A successfully refreshed from Google Patents.
US4317655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marine drive gear housing
Assignee: Brunswick Corp
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Filing: 1979-11-15
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Granted: 1982-03-02
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Expires: 1999-11-15
Abstract
Abstract A marine propulsion unit lower gear housing permits disassembly by rearranging easily removable parts for engagement with non-easily removable parts thereby permitting the use of standard wrenches for disassembly and assembly.
Inventors
- 👤 James M. Schiek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:53
CPC Classifications
B; B63; B63H; B63H20/00; B63H20/32; B63H23/00; B63H23/32; B63H23/34; B63H2020/323; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/904; Y10T; Y10T74/00; Y10T74/21; Y10T74/2186
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
124 words
A marine drive including (A) a gear housing having a propeller shaft, (B) gear means positioned on said shaft for rotation thereof, (C) a closure member positioned on said shaft and threadably engaged with said gear housing, and (D) a propeller fixed on said propeller shaft for rotation thereby, wherein the improvement comprises: an intermediate member positioned on said propeller shaft between said propeller and said closure member, said intermediate member and said closure member each having mating engagement means, said intermediate member having a first position in which said mating engagement means are spaced and do not engage and a second position in which said mating engagement means are engaged so that rotation of said intermediate member rotates said closure member for removal.
Claim 2
Dependent Claim
124 words
A marine drive including (A) a gear housing having a propeller shaft, (B) gear means positioned on said shaft for rotation thereof, (C) a closure member positioned on said shaft and threadably engaged with said gear housing, and (D) a propeller fixed on said propeller shaft for rotation thereby, wherein the improvement comprises: an intermediate member positioned on said propeller shaft between said propeller and said closure member, said intermediate member and said closure member each having mating engagement means, said intermediate member having a first position in which said mating engagement means are spaced and do not engage and a second position in which said mating engagement means are engaged so that rotation of said intermediate member rotates said closure member for removal.
Claim 3
Dependent Claim
33 words
The marine drive defined in claim 1 wherein said intermediate member is axially movable between said first and second positions so as to provide axial engagement and disengagement of said mating engagement means.
Claim 4
Dependent Claim
32 words
The marine drive defined in claim 2 wherein said intermediate member comprises a thrust carrying member positionable on said propeller shaft for transmitting propeller thrust from said propeller to said propeller shaft.
Claim 5
Dependent Claim
28 words
The marine drive defined in claim 2 wherein said axial movement between said first and second positions is obtained by reversing said intermediate member on said propeller shaft.
Claim 6
Dependent Claim
31 words
The marine drive defined in claim 4 wherein said intermediate member includes surfaces for receiving a torque applying tool to rotate said intermediate member when said mating engagement means are engaged.
Claim 7
Dependent Claim
22 words
The marine drive as defined in claim 5 wherein said surface include at least two parallel flat surfaces for receiving a wrench.
Claim 8
Dependent Claim
22 words
The marine drive as defined in claim 5 wherein said surfaces include a socket wrench engaging shape for receiving a socket wrench.
Claim 9
Dependent Claim
41 words
The marine drive defined in claim 4 wherein said intermediate member is fixed for rotation on said propeller shaft when said engagement means are engaged whereby rotation of said propeller shaft will rotate said intermediate member and remove said closure member.
Claim 10
Dependent Claim
22 words
The marine drive defined in claim 8 wherein said propeller includes surfaces for receiving a torque applying tool to rotate said propeller.
Claim 11
Dependent Claim
24 words
The marine drive defined in claim 1 wherein said engagement means comprise mating projections and depressions on said intermediate member and said closure member.
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) | 1985-03-01 | 1985-08-31 | 1986-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-01 | 1989-08-31 | 1990-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-01 | 1993-08-31 | 1994-03-02 | $7700.00 | Window Closed / Lapsed |