US3610198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Outboard motor shroud
Assignee: Outboard Marine Corp
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Filing: 1969-08-19
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Granted: 1971-10-05
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Expires: 1989-08-19
Abstract
Abstract Disclosed herein is a shroud for the engine or power head of a marine propulsion device, which shroud has a rearwardly sloping channel provided with an upstanding annular flange defining an air inlet throat. A cover located over a recessed wall portion and spaced from the inlet throat cooperates with the channel to define a passage which is open both forwardly and rearwardly for supplying air to the inlet throat. An intermediate apertured partition separates the passage into upper and lower passage portions. The apertures in the partition permit air to communicate from the lower passage portion to the upper passage, but prevent spray and rain from entering the inlet throat. A rearwardly sloping wall in the channel affords rearward drainage of water through the lower passage portion. The rear edge of the cover is provided with an enlarged smooth, arcuate edge which forms a grip or handle for tilting the propulsion unit.
Inventors
- 👤 Norman J Alexandrowicz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:24
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/16; F02M35/165; F02M35/167; F02M35/168; F02B; F02B61/00; F02B61/04; F02B61/045; F02M35/10; F02M35/10006; F02M35/10013; F02M35/10242; F02M35/10262; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
99 words
A marine propulsion device comprising an engine shroud, first wall means on said shroud for defining a rearwardly sloping upwardly open channel, means defining an inlet throat in said channel upstanding from said first wall means and including an upper opening, said inlet throat being adapted to communicate with the engine carburetor, second wall means on said shroud cooperating with said first wall means to define a passage around said inlet throat and to cover said upper opening, said passage having forward and rearward openings located on opposite sides of said throat to supply air to said inlet throat.
Claim 2
Dependent Claim
99 words
A marine propulsion device comprising an engine shroud, first wall means on said shroud for defining a rearwardly sloping upwardly open channel, means defining an inlet throat in said channel upstanding from said first wall means and including an upper opening, said inlet throat being adapted to communicate with the engine carburetor, second wall means on said shroud cooperating with said first wall means to define a passage around said inlet throat and to cover said upper opening, said passage having forward and rearward openings located on opposite sides of said throat to supply air to said inlet throat.
Claim 3
Dependent Claim
34 words
A marine propulsion device in accordance with claim 1 wherein said second wall means also defines a rearwardly located handle adjacent said rearward passage opening for tilting the propulsion device about a tilt axis.
Claim 4
Dependent Claim
87 words
A marine propulsion device in accordance with claim 1 including third wall means for defining a partition located within said passage, said third wall means cooperating with said first and second wall means to define upper and lower passage portions, said upper passage being in communication with said inlet throat, said lower passage portion affording rearward drainage of water entering said forwardly located passage opening, and apertures in said partition to afford airflow from said lower passage to said upper passage for flow to said inlet throat.
Claim 5
Dependent Claim
78 words
A shroud for a marine propulsion device, said shroud comprising wall portions defining an upwardly open channel having a rearwardly sloping floor, an inlet throat extending upwardly from said channel floor, a cover over said channel and said inlet throat, said cover cooperating with said channel to provide a passage for supplying air to said inlet throat, said passage extending in opposite directions from said throat and having openings located forwardly and rearwardly with respect to said throat.
Claim 6
Dependent Claim
78 words
A shroud for a marine propulsion device, said shroud comprising wall portions defining an upwardly open channel having a rearwardly sloping floor, an inlet throat extending upwardly from said channel floor, a cover over said channel and said inlet throat, said cover cooperating with said channel to provide a passage for supplying air to said inlet throat, said passage extending in opposite directions from said throat and having openings located forwardly and rearwardly with respect to said throat.
Claim 7
Dependent Claim
26 words
A shroud in accordance with claim 4, wherein said cover has an enlarged rearwardly located end to provide a handle for tilting the marine propulsion device.
Claim 8
Dependent Claim
187 words
A marine propulsion device comprising an engine shroud, first wall means on said shroud for defining a rearwardly sloping upwardly open channel, means defining an inlet throat in said channel upstanding from said first wall means and including an upper opening, said inlet throat being adapted to communicate with the engine carburetor, second wall means on said shroud cooperating with said first wall means to define a passage around said inlet throat and to cover said upper opening, said passage having forwardly and rearwardly located openings to supply air to said inlet throat, said second wall means also defining a rearwardly located handle adjacent said rearward passage opening for tilting the propulsion unit about a tilt axis, and third wall means defining a partition cooperating with said first and second wall means to define upper and lower passage portions, said upper passage portion being in communication with sAid inlet throat, said lower passage portion affording rearward drainage of water entering said forwardly located passage opening, and apertures in said partition to afford airflow from said lower passage to said upper passage for flow to said inlet throat.
Claim 9
Dependent Claim
187 words
A marine propulsion device comprising an engine shroud, first wall means on said shroud for defining a rearwardly sloping upwardly open channel, means defining an inlet throat in said channel upstanding from said first wall means and including an upper opening, said inlet throat being adapted to communicate with the engine carburetor, second wall means on said shroud cooperating with said first wall means to define a passage around said inlet throat and to cover said upper opening, said passage having forwardly and rearwardly located openings to supply air to said inlet throat, said second wall means also defining a rearwardly located handle adjacent said rearward passage opening for tilting the propulsion unit about a tilt axis, and third wall means defining a partition cooperating with said first and second wall means to define upper and lower passage portions, said upper passage portion being in communication with sAid inlet throat, said lower passage portion affording rearward drainage of water entering said forwardly located passage opening, and apertures in said partition to afford airflow from said lower passage to said upper passage for flow to said inlet throat.
References Cited (Backward Citations)
US2224900A
Cited
US2834419A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |