US4635173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Headlight for motor vehicles
Assignee: Robert Bosch GmbH
•
Filing: 1986-02-13
•
Granted: 1987-01-06
•
Expires: 2006-02-13
Abstract
Abstract In a headlight of a motor vehicle, having a housing and a diffusing lens enclosing with the housing an interior of the headlight, the interior is vented by means of a conduit exposed to air streams caused by travelling of the motor vehicle. The conduit is formed as an integrated part of the diffusing lens made of plastics.
Inventors
- 👤 Helmut Dressler
- 👤 Peter Engenhart
- 👤 Klaus Jahnel
- 👤 Heinrich Kochendorfer
- 👤 Ulrich Kuhn
- 👤 Karl H. Matthas
- 👤 Kurt Schuster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:55
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/0029; B60Q1/0041; B60Q1/0047; F; F21; F21S; F21S45/00; F21S45/30; F21S45/33; F21S45/40; F21S45/42; F21S45/43
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
103 words
A headlight for a motor vehicle, comprising a housing with a reflector, and a diffusing lens which hermetically encloses and forms with said housing an interior of the headlight, said housing having an air inlet positioned in a bottom part thereof and an air outlet diametrally opposing said inlet; and a conduit exposed to air streams due to travelling of the motor vehicle, said outlet opening into said conduit, said conduit having an inflow opening for admitting air of the air streams, and an outflow opening for discharging said air, said conduit being positioned on said diffusing lens which is made of plastics.
Claim 2
Dependent Claim
103 words
A headlight for a motor vehicle, comprising a housing with a reflector, and a diffusing lens which hermetically encloses and forms with said housing an interior of the headlight, said housing having an air inlet positioned in a bottom part thereof and an air outlet diametrally opposing said inlet; and a conduit exposed to air streams due to travelling of the motor vehicle, said outlet opening into said conduit, said conduit having an inflow opening for admitting air of the air streams, and an outflow opening for discharging said air, said conduit being positioned on said diffusing lens which is made of plastics.
Claim 3
Dependent Claim
62 words
The headlight as defined in claim 1, in which said housing and said diffusing lens each has a rectangular cross-section, said air inlet being formed in an underside of said housing and near one corner thereof, said outflow opening being positioned at an upper side of said diffusing lens at a corner thereof diametrically opposing to said one corner of the housing.
Claim 4
Dependent Claim
63 words
The headlight as defined in claim 2, wherein said diffusing lens has an optical plate having a closed flange with two vertical sides, said conduit being positioned in the region of one of said vertical sides and an edge of said optical plate, said inflow opening and said outflow opening being formed approximately parallel to a direction of travelling of the motor vehicle.
Claim 5
Dependent Claim
36 words
The headlight as defined in claim 3, wherein said outflow opening has two overlapping edges, one of said edges facing said direction of travelling, said inflow opening being flush with an underside of said diffusing lens.
Claim 6
Dependent Claim
78 words
The headlight as defined in claim 2, in which said diffusing lens has an optical plate with an enclosed flange with two shorter vertical sides and an upper and a lower longer horizontal sides, said conduit being arranged in the region of an edge which is formed by the upper longer side and one of said shorter vertical sides, said inflow opening and said outflow opening being formed transversely of a direction of travelling of said motor vehicle.
Claim 7
Dependent Claim
25 words
The headlight as defined in claim 5, wherein said upper horizontal side and said one shorter side of said flange form walls of said conduit.
Claim 8
Dependent Claim
34 words
The headlight as defined in claim 5, wherein said conduit is positioned on the upper side of said flange, said one shorter side having an extension which forms an outer wall of said conduit.
Claim 9
Dependent Claim
24 words
The headlight as defined in claim 7, wherein said housing has a conduit extension which is attached to said conduit in said diffusing lens.
Claim 10
Dependent Claim
124 words
The headlight for a motor vehicle formed as a headlight-blinker light unit, as defined in claim 5, and including a blinker lgiht laterally attached to the headlight and having a housing and a transparent pane hermetically enclosing and forming with said housing a closed interior which has an air inlet and an air outlet, wherein the blinker light has an additional conduit exposed to air streams, said outlet opening into said additional conduit, said conduit of the headlight and said additional conduit of the blinker light being positioned on an ajoining vertical side of said flange and superposing one another, the air outlet of the blinker light being arranged in a lateral portion of said pane and below the air outlet of the headlight.
Claim 11
Dependent Claim
20 words
The headlight as defined in claim 9, wherein the inflow opening of each conduit widens in said direction of travelling.
Claim 12
Dependent Claim
22 words
The headlight as defined in claim 10, wherein the inflow opening of each conduit has the shape of a downwardly widening funnel.
Claim 13
Dependent Claim
23 words
The headlight as defined in claim 9, wherein said inflow opening is formed by a plurality of parallel slots in said diffusing lens.
Claim 14
Dependent Claim
34 words
The headlight as defined in claim 9, wherein the air outlet of the headlight and the air outlet of the blinker light each is formed by a tubular connection extended into a respective conduit.
References Cited (Backward Citations)
US1281754A
Cited
US1767526A
Cited
US2007489A
Cited
US3224321A
Cited
US3325637A
Cited
US3388249A
Cited
US4249232A
Cited
US4329738A
Cited
US4302801A
Cited
DE3004413A1
Cited
US4569007A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-01-05 | 1990-07-07 | 1991-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-05 | 1994-07-07 | 1995-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-05 | 1998-07-07 | 1999-01-06 | $7700.00 | Window Closed / Lapsed |