US5072707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Split thrust bearing for outboard engine
Assignee: Aichi Machine Industry Co Ltd
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Filing: 1989-12-22
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Granted: 1991-12-17
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Expires: 2009-12-22
Abstract
Abstract A four cycle outboard engine having a crankshaft substantially vertically oriented when running A cylindrical block supporting the crankshaft. A thrust metal composed of a pair of semi-circular plates of different thicknesses are mounted in semi-circular grooves of differing depth formed on the bearing portions of the cylinder block and mounted in such a way that the semi-circular plate having the greater thickness contacts the end surface of the semi-circular groove having the shallower depth.
Inventors
- 👤 Kiichiro Takai
- 👤 Haruo Sano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:34
CPC Classifications
F; F16; F16C; F16C9/00; F16C9/02; F02; F02B; F02B29/00; F02B29/04; F02B29/045; F02B29/0462; F02B61/00; F02B61/04; F02B61/045; F02B75/00; F02B75/16; F02B75/18; F02B75/20; F02M; F02M35/00; F02M35/10; F02M35/1015; F02M35/10157; F02M35/10163; F02M35/10242; F02M35/10268; F02M35/16; F02M35/165; F02M35/167; F16C17/00; F16C17/04; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/08; F02B1/00; F02B1/02; F02B1/04; F02B75/02; F02B2075/022; F02B2075/025; F02B2075/027; F02B2075/1804; F02B2075/1816; F02B29/0475; F02B75/007; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
An outboard engine comprising: a four-cycle engine having a crankshaft extending substantially vertically while running; and a thrust metal mounted on bearing portions formed on a cylinder block and a bearing cap of the engine, respectively, for supporting the crankshaft, said thrust metal being composed of a pair of semicircular plates having a different thickness from each other; said semicircular plates being received within semicircular grooves formed on said bearing portions of the cylinder block and the bearing cap with different depth from each other, respectively, in such a manner that the mating surface of one of said semicircular plates having larger thickness contacts the end surface of one of said semicircular grooves having shallower depth.
Claim 2
Dependent Claim
116 words
An outboard engine comprising: a four-cycle engine having a crankshaft extending substantially vertically while running; and a thrust metal mounted on bearing portions formed on a cylinder block and a bearing cap of the engine, respectively, for supporting the crankshaft, said thrust metal being composed of a pair of semicircular plates having a different thickness from each other; said semicircular plates being received within semicircular grooves formed on said bearing portions of the cylinder block and the bearing cap with different depth from each other, respectively, in such a manner that the mating surface of one of said semicircular plates having larger thickness contacts the end surface of one of said semicircular grooves having shallower depth.
References Cited (Backward Citations)
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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) | 1994-12-16 | 1995-06-17 | 1995-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-16 | 1999-06-17 | 1999-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-16 | 2003-06-17 | 2003-12-17 | $7700.00 | Window Closed / Lapsed |