Patent US5490573A successfully refreshed from Google Patents.
US5490573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Windshield apparatus for a motorcycle
Assignee: Honda Motor Co Ltd
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Filing: 1994-09-22
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Granted: 1996-02-13
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Expires: 2014-09-22
Abstract
Abstract A pair of air inlet openings and a pair of air introduction paths are formed in a leftwardly and rightwardly symmetrical relationship on left and right side portions of a windshield. The air introduction paths are each formed as a smooth continuous curved face in a transverse direction, and a body center side curved face of the air introduction path is formed more moderate relative to an outer side curved face. When surface air flows along the surface of the front face flow on the air introduction paths since the body center side curved faces are moderate, exfoliation occurs less likely, and the external air admission efficiency of the air inlet openings is raised.
Inventors
- 👤 Shinji Hagiwara
- 👤 Kouichi Kobayashi
- 👤 Kouji Shimokawa
- 👤 Kenichi Nishimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:48
CPC Classifications
F; F02; F02D; F02D9/00; F02D9/08; F02D9/10; F02D9/109; F02D9/1095; B; B62; B62J; B62J17/00; B62J17/02; B62J17/10; F02M; F02M35/00; F02M35/10; F02M35/10006; F02M35/10013; F02M35/16; F02M35/162; F02D9/02; F02D2009/0201; F02D2009/0254; F02D2009/0279; F02M35/10209; F02M35/10216; F02M35/104; F02M35/116
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
175 words
An ambient air supply for a motorcycle engine comprising: a windshield adapted for covering a front portion of a motorcycle body, said windshield having a center portion and outer edge portions; at least one air inlet opening provided on said windshield; at least one recessed groove being formed in a surface of said windshield forwardly of said at least one air inlet opening providing a substantially longitudinal air introduction path to said at least one air inlet opening, said at least one recessed groove having a smooth, continuously curved surface in a transverse direction of said air introduction path; a first portion of said curved surface adjacent the center portion of said windshield being convexly shaped having a first radius of curvature; a second convexly shaped portion of the curved surface adjacent one of the outer edge portions of said windshield having a second radius of curvature substantially less than said first radius; and an intake conduit being in communication with said at least one air inlet opening for introducing ambient air to the engine.
Claim 2
Dependent Claim
175 words
An ambient air supply for a motorcycle engine comprising: a windshield adapted for covering a front portion of a motorcycle body, said windshield having a center portion and outer edge portions; at least one air inlet opening provided on said windshield; at least one recessed groove being formed in a surface of said windshield forwardly of said at least one air inlet opening providing a substantially longitudinal air introduction path to said at least one air inlet opening, said at least one recessed groove having a smooth, continuously curved surface in a transverse direction of said air introduction path; a first portion of said curved surface adjacent the center portion of said windshield being convexly shaped having a first radius of curvature; a second convexly shaped portion of the curved surface adjacent one of the outer edge portions of said windshield having a second radius of curvature substantially less than said first radius; and an intake conduit being in communication with said at least one air inlet opening for introducing ambient air to the engine.
Claim 3
Dependent Claim
58 words
The ambient air supply for a motorcycle engine according to claim 1, wherein said at least one air inlet opening includes a reduced height opening portion positioned adjacent to a center of the windshield which increases in height as the at least one air inlet opening extends outwardly towards one of the outer edge portions of said windshield.
Claim 4
Dependent Claim
78 words
The ambient air supply for a motorcycle engine according to claim 1, wherein said at least one recess groove extends a predetermined distance to a first point from said at least one air inlet opening, a width of said at least one recess groove being narrow at said first point and expanding to be equal to a width of said at least one air inlet opening at a point adjacent to said at least one air inlet opening.
Claim 5
Dependent Claim
41 words
The ambient air supply for a motorcycle engine according to claim 3, wherein said at least one recess groove extends continuously in a curved surface from said first point to said point adjacent to said at least one air inlet opening.
Claim 6
Dependent Claim
25 words
The ambient air supply for a motorcycle engine according to claim 1, and further including an air filter member operatively positioned in said intake conduit.
Claim 7
Dependent Claim
40 words
The ambient air supply for a motorcycle engine according to claim 1, wherein said at least one air inlet opening and said at least one recess groove extend at a predetermined angle relative to said center portion of said windshield.
Claim 8
Dependent Claim
273 words
An ambient air supply for a motorcycle engine comprising: a windshield adapted for covering a front portion of a motorcycle body, said windshield having a center portion and outer edge portions; a first air inlet opening provided on a first side of said windshield and a second air inlet opening provided on a second side of said windshield; a first recessed groove being formed in a surface of said windshield forwardly of said first air inlet opening providing a first substantially longitudinal air introduction path to said first air inlet opening, said first recessed groove having a smooth, continuously curved surface in a transverse direction of said first air introduction path; a second recessed groove being formed in a surface of said windshield forwardly of said second air inlet opening providing a second substantially longitudinal air introduction path to said second air inlet opening, said second recessed groove having a smooth, continuously curved surface in a transverse direction of said second air introduction path; a first portion of each of said curved surfaces of said first and second recessed grooves disposed adjacent the center portion of said windshield being convexly shaped having a first radius of curvature; a second convexly shaped portion of each of said curved surfaces adjacent a respective one of the outer edge portions of said windshield having a second radius of curvature substantially less than said first radius; a first intake conduit being in communication with said first air inlet opening for introducing ambient air to the engine; and a second intake conduit being in communication with said second air inlet opening for introducing ambient air to the engine.
Claim 9
Dependent Claim
273 words
An ambient air supply for a motorcycle engine comprising: a windshield adapted for covering a front portion of a motorcycle body, said windshield having a center portion and outer edge portions; a first air inlet opening provided on a first side of said windshield and a second air inlet opening provided on a second side of said windshield; a first recessed groove being formed in a surface of said windshield forwardly of said first air inlet opening providing a first substantially longitudinal air introduction path to said first air inlet opening, said first recessed groove having a smooth, continuously curved surface in a transverse direction of said first air introduction path; a second recessed groove being formed in a surface of said windshield forwardly of said second air inlet opening providing a second substantially longitudinal air introduction path to said second air inlet opening, said second recessed groove having a smooth, continuously curved surface in a transverse direction of said second air introduction path; a first portion of each of said curved surfaces of said first and second recessed grooves disposed adjacent the center portion of said windshield being convexly shaped having a first radius of curvature; a second convexly shaped portion of each of said curved surfaces adjacent a respective one of the outer edge portions of said windshield having a second radius of curvature substantially less than said first radius; a first intake conduit being in communication with said first air inlet opening for introducing ambient air to the engine; and a second intake conduit being in communication with said second air inlet opening for introducing ambient air to the engine.
Claim 10
Dependent Claim
58 words
The ambient air supply for a motorcycle engine according to claim 7, wherein said first and second air inlet openings include a reduced height opening portion positioned adjacent to a center of the windshield which increases in height as the first and second air inlet openings extend outwardly towards one of the outer edge portions of said windshield.
Claim 11
Dependent Claim
80 words
The ambient air supply for a motorcycle engine according to claim 7, wherein said first and second recess grooves extend, respectively, a predetermined distance to a first point from said first and second air inlet openings, a width of said first and second recess grooves being narrow at said first point and expanding to be equal to a width of said first and second air inlet openings at a point adjacent to said first and second air inlet openings, respectively.
Claim 12
Dependent Claim
41 words
The ambient air supply for a motorcycle engine according to claim 9, wherein said first and second recess grooves extend continuously in a curved surface from said first point to said point adjacent to said at least one air inlet opening.
Claim 13
Dependent Claim
30 words
The ambient air supply for a motorcycle engine according to claim 7, and further including an air filter member operatively positioned in each of said first and second intake conduits.
Claim 14
Dependent Claim
40 words
The ambient air supply for a motorcycle engine according to claim 7, wherein said first and second air inlet openings and said first and second recess grooves extend at a predetermined angle relative to said center portion of said windshield.
Claim 15
Dependent Claim
145 words
A windshield adapted for covering a front portion of a motorcycle body, said windshield having a center portion and outer edge portions comprising: at least one air inlet opening provided on said windshield; at least one recessed groove being formed in a surface of said windshield forwardly of said at least one air inlet opening providing a substantially longitudinal air introduction path to said at least one air inlet opening, said at least one recessed groove having a smooth, continuously curved surface in a transverse direction of said air introduction path; a first portion of said curved surface adjacent the center portion of said windshield being convexly shaped having a first radius of curvature; a second convexly shaped portion of the curved surface adjacent one of the outer edge portions of said windshield having a second radius of curvature substantially less than said first radius.
Claim 16
Dependent Claim
145 words
A windshield adapted for covering a front portion of a motorcycle body, said windshield having a center portion and outer edge portions comprising: at least one air inlet opening provided on said windshield; at least one recessed groove being formed in a surface of said windshield forwardly of said at least one air inlet opening providing a substantially longitudinal air introduction path to said at least one air inlet opening, said at least one recessed groove having a smooth, continuously curved surface in a transverse direction of said air introduction path; a first portion of said curved surface adjacent the center portion of said windshield being convexly shaped having a first radius of curvature; a second convexly shaped portion of the curved surface adjacent one of the outer edge portions of said windshield having a second radius of curvature substantially less than said first radius.
Claim 17
Dependent Claim
52 words
The windshield according to claim 13, wherein said at least one air inlet opening includes a reduced height opening portion positioned adjacent to a center of the windshield which increases in height as the at least one air inlet opening extends outwardly towards one of the outer edge portions of said windshield.
Claim 18
Dependent Claim
72 words
The windshield according to claim 13, wherein said at least one recess groove extends a predetermined distance to a first point from said at least one air inlet opening, a width of said at least one recess groove being narrow at said first point and expanding to be equal to a width of said at least one air inlet opening at a point adjacent to said at least one air inlet opening.
Claim 19
Dependent Claim
35 words
The windshield according to claim 15, wherein said at least one recess groove extends continuously in a curved surface from said first point to said point adjacent to said at least one air inlet opening.
Claim 20
Dependent Claim
34 words
The windshield according to claim 13, wherein said at least one air inlet opening and said at least one recess groove extend at a predetermined angle relative to said center portion of said windshield.
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) | 1999-02-12 | 1999-08-14 | 2000-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-02-12 | 2003-08-14 | 2004-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-02-12 | 2007-08-14 | 2008-02-13 | $7700.00 | Window Closed / Lapsed |