Patent US3589204A successfully refreshed from Google Patents.
US3589204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marine propulsion device
Assignee: Outboard Marine Corp
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Filing: 1969-09-08
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Granted: 1971-06-29
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Expires: 1989-09-08
Abstract
Abstract Disclosed herein is a marine propulsion device which includes a drive shaft housing having upper and lower housing sections, and in which the upper housing section is rotatably supported for movement about a horizontal tilt axis by oppositely extending trunnions which are received in inwardly open coaxial apertures in spaced supporting members fixed to the boat hull. Power is transferred from the engine output shaft to a drive shaft by a horizontal cross shaft which is rotatably supported in coaxial relation to the tilt axis and between the trunnions by a gear case having first and second gear case sections. The first gear case section is fixed to the boat hull. The second gear case section is integral with the upper end of the drive shaft housing. Steering is afforded by rotating the lower drive shaft housing section by a steering linkage which includes a worm wheel sector on the lower housing section and a worm gear which is rotated by a drive which includes a stub shaft rotatably supported within one of the trunnions.
Inventors
- 👤 John A Langley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:51
CPC Classifications
B; B63; B63H; B63H20/00; B63H20/14; B63H20/22; B63H20/08; B63H20/10; B63H20/12; B63H20/001; B63H20/002; B63H5/00; B63H5/07; B63H5/125; F; F02; F02B; F02B61/00; F02B61/04; F02B61/045; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19502; Y10T74/19521
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
124 words
A marine propulsion device comprising a drive shaft housing, means for rotatably supporting said drive shaft housing for vertical swinging movement about a horizontal tilt axis and relative to a boat hull, a drive shaft rotatably supported in said drive shaft housing, a horizontal cross-shaft, gearing for connecting said cross-shaft to said drive shaft, a first gear case section for supporting one part of said cross-shaft, said first gear case section being adapted to be fixed relative to the boat hull, and a second gear case section on said drive shaft housing for supporting another part of said cross-shaft, said second gear case section being movable with said drive shaft housing about said horizontal tilt axis during tilting movement of said drive shaft housing.
Claim 2
Dependent Claim
124 words
A marine propulsion device comprising a drive shaft housing, means for rotatably supporting said drive shaft housing for vertical swinging movement about a horizontal tilt axis and relative to a boat hull, a drive shaft rotatably supported in said drive shaft housing, a horizontal cross-shaft, gearing for connecting said cross-shaft to said drive shaft, a first gear case section for supporting one part of said cross-shaft, said first gear case section being adapted to be fixed relative to the boat hull, and a second gear case section on said drive shaft housing for supporting another part of said cross-shaft, said second gear case section being movable with said drive shaft housing about said horizontal tilt axis during tilting movement of said drive shaft housing.
Claim 3
Dependent Claim
52 words
A marine propulsion device in accordance with claim 1, wherein said first and second gear case sections have adjacently located generally annular wall portions which together form a sleeve which is coaxial with the horizontal tilt axis and which receives said cross-shaft, and bearings in said sleeve for rotatably supporting said cross-shaft.
Claim 4
Dependent Claim
36 words
A marine propulsion device in accordance with claim 1, wherein said first and second gear case sections include opposed spaced wall portions which define recesses and bearings located in said recesses for rotatably supporting said cross-shaft.
Claim 5
Dependent Claim
27 words
A marine propulsion device in accordance with claim 2, including a seal interconnecting said wall portions of said sleeve to prevEnt escape of lubricant from said sleeve.
Claim 6
Dependent Claim
69 words
A marine propulsion device in accordance with claim 1, wherein said means for rotatably supporting said drive shaft housing for vertical swinging movement about a horizontal tilt axis comprises a pair of oppositely extending trunnions on said drive shaft housing, and a pair of spaced support members adapted to be fixed relative to a boat hull, said support members having coaxial apertures for receiving and rotatably supporting said trunnions.
Claim 7
Dependent Claim
42 words
A marine propulsion device in accordance with claim 5, wherein said drive shaft housing includes a drive shaft housing part rotatable about said drive shaft axis, and means for rotating said part of said drive shaft housing to steer a boat hull.
Claim 8
Dependent Claim
143 words
A marine propulsion deice in accordance with claim 6, wherein said means for rotating said part of said drive shaft housing to steer a boat hull comprises a first shaft rotatably supported in one of said support members and connectable to remote steering apparatus, a second shaft, means for rotatably supporting said second shaft in coaxial relation to said horizontal tilt axis, gearing connecting said first shaft to said second shaft, a third shaft rotatably supported in said drive shaft housing, gearing connecting one end of said third shaft to said second shaft, a fourth shaft, said fourth shaft carrying a worm gear, gearing connecting one end of said fourth shaft to said third shaft, and a gear sector connected to said rotatable part of said drive shaft housing, said gear sector being in mesh with said worm gear on said fourth shaft.
Claim 9
Dependent Claim
49 words
A marine propulsion device in accordance with claim 7, wherein said means for rotatably supporting said second shaft in coaxial relation to said tilt axis comprises an inturned annular flange in one of said trunnions, and a bearing supported by said flange, said bearing rotatably supporting said second shaft.
Claim 10
Dependent Claim
194 words
A marine propulsion device comprising a drive shaft housing, said drive shaft housing having upper and lower housing sections with said lower housing section rotatably connected to said upper housing section for rotation about a steering axis, said upper drive shaft housing having a pair of oppositely extending generally horizontal trunnions, a pair of spaced supporting members adapted to be fixed relative to a boat hull, coaxial apertures in each of said supporting members for receiving said trunnions to rotatably support said drive shaft housing for vertical tilting movement about a horizontal tilt axis, a first shaft rotatably supported in one of said supporting members, a second shaft rotatably supported within one of said trunnions, gearing connecting said second shaft to said first shaft, a third shaft rotatably supported in said upper housing section, gearing connecting one end of said third shaft to said second shaft, a fourth shaft rotatably supported in said upper housing section, a gear carried on said fourth shaft, a gear sector connected to said lower housing section, a gear on said fourth shaft in mesh with said gear sector and gearing connecting said fourth shaft to said third shaft.
Claim 11
Dependent Claim
194 words
A marine propulsion device comprising a drive shaft housing, said drive shaft housing having upper and lower housing sections with said lower housing section rotatably connected to said upper housing section for rotation about a steering axis, said upper drive shaft housing having a pair of oppositely extending generally horizontal trunnions, a pair of spaced supporting members adapted to be fixed relative to a boat hull, coaxial apertures in each of said supporting members for receiving said trunnions to rotatably support said drive shaft housing for vertical tilting movement about a horizontal tilt axis, a first shaft rotatably supported in one of said supporting members, a second shaft rotatably supported within one of said trunnions, gearing connecting said second shaft to said first shaft, a third shaft rotatably supported in said upper housing section, gearing connecting one end of said third shaft to said second shaft, a fourth shaft rotatably supported in said upper housing section, a gear carried on said fourth shaft, a gear sector connected to said lower housing section, a gear on said fourth shaft in mesh with said gear sector and gearing connecting said fourth shaft to said third shaft.
Claim 12
Dependent Claim
105 words
A marine propulsion device comprising a drive shaft housing having opposite sides with recessed wall portions, a pair of spaced supporting members adapted to be fixed relative to a boat hull and extend aftward adjacent to a transom opening, said supporting members having wall portions complementary to said recessed wall portions in said drive shaft housing, said wall portions of said supporting members being received in said recesses in said drive shaft housing when said drive shaft housing is in the normal running position, and means for rotatably supporting said drive shaft housing between said supporting members for tilting movement about a horizontal tilt axis.
Claim 13
Dependent Claim
105 words
A marine propulsion device comprising a drive shaft housing having opposite sides with recessed wall portions, a pair of spaced supporting members adapted to be fixed relative to a boat hull and extend aftward adjacent to a transom opening, said supporting members having wall portions complementary to said recessed wall portions in said drive shaft housing, said wall portions of said supporting members being received in said recesses in said drive shaft housing when said drive shaft housing is in the normal running position, and means for rotatably supporting said drive shaft housing between said supporting members for tilting movement about a horizontal tilt axis.
Claim 14
Dependent Claim
121 words
A marine propulsion device comprising a drive shaft housing, means for rotatably supporting said drive shaft housing for vertical swinging movement relative to a boat hull about a horizontal tilt axis, a drive shaft rOtatably supported in said drive shaft housing, a horizontal cross-shaft having first and second ends for transferring power from an input shaft to said drive shaft, means stationary with respect to the boat hull for rotatably supporting said first end of said cross-shaft in coaxial relation with said horizontal tilt axis, and means on said drive shaft housing and movable with said drive shaft housing about said horizontal tilt axis for rotatably supporting said second end of said cross-shaft in coaxial relation with said horizontal tilt axis.
Claim 15
Dependent Claim
121 words
A marine propulsion device comprising a drive shaft housing, means for rotatably supporting said drive shaft housing for vertical swinging movement relative to a boat hull about a horizontal tilt axis, a drive shaft rOtatably supported in said drive shaft housing, a horizontal cross-shaft having first and second ends for transferring power from an input shaft to said drive shaft, means stationary with respect to the boat hull for rotatably supporting said first end of said cross-shaft in coaxial relation with said horizontal tilt axis, and means on said drive shaft housing and movable with said drive shaft housing about said horizontal tilt axis for rotatably supporting said second end of said cross-shaft in coaxial relation with said horizontal tilt axis.
Claim 16
Dependent Claim
92 words
A marine propulsion device comprising a drive shaft housing, means for rotatably supporting said drive shaft housing for vertical swinging movement relative to a boat hull about a horizontal tilt axis, a drive shaft rotatably supported in said drive shaft housing, a horizontal cross-shaft, a first bearing receiving said cross-shaft and carried by said drive shaft housing concentrically with said tilt axis, a supporting member adapted to be fixed relative to the boat hull, and a second bearing receiving said cross-shaft and carried by said supporting member concentrically with said tilt axis.
Claim 17
Dependent Claim
92 words
A marine propulsion device comprising a drive shaft housing, means for rotatably supporting said drive shaft housing for vertical swinging movement relative to a boat hull about a horizontal tilt axis, a drive shaft rotatably supported in said drive shaft housing, a horizontal cross-shaft, a first bearing receiving said cross-shaft and carried by said drive shaft housing concentrically with said tilt axis, a supporting member adapted to be fixed relative to the boat hull, and a second bearing receiving said cross-shaft and carried by said supporting member concentrically with said tilt axis.
Claim 18
Dependent Claim
30 words
A marine propulsion device in accordance with claim 12, including sealing means between said drive shaft housing and said supporting member, said sealing means being concentric with said tilt axis.
Claim 19
Dependent Claim
70 words
A marine propulsion device in accordance with claim 1 wherein said drive shaft housing also includes a lower housing section rotatable relative to said second gearcase section about an axis perpendicular to said horizontal axis, and a linkage including a part extending coaxially with said horizontal axis for steering actuation of said lower housing section regardless of the position of said drive shaft housing relative to said horizontal tilt axis.
Claim 20
Dependent Claim
92 words
A marine propulsion device comprising a drive shaft housing having means affording vertical tilting movement about a horizontal axis relative to a boat hull and also having upper and lower housing sections with said lower housing section rotatably connected to said upper housing section for rotation about a steering axis and a linkage connected to said lower housing section and including a part extending coaxially with said horizontal axis for steering actuation of said lower housing section regardless of the position of said drive shaft housing relative to said horizontal tilt axis.
Claim 21
Dependent Claim
92 words
A marine propulsion device comprising a drive shaft housing having means affording vertical tilting movement about a horizontal axis relative to a boat hull and also having upper and lower housing sections with said lower housing section rotatably connected to said upper housing section for rotation about a steering axis and a linkage connected to said lower housing section and including a part extending coaxially with said horizontal axis for steering actuation of said lower housing section regardless of the position of said drive shaft housing relative to said horizontal tilt axis.
Claim 22
Dependent Claim
34 words
A marine propulsion device in accordance with claim 15 wherein said part is supported for rotary movement coaxially with said horizontal tilt axis and extends, at least in part, within said drive shaft housing.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |