US3745906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Defroster
Assignee: Nissan Motor Co Ltd
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Filing: 1971-06-28
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Granted: 1973-07-17
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Expires: 1991-06-28
Abstract
Abstract Herein disclosed is a defroster for defrosting a windshield of a motor vehicle. The defroster has a defroster nozzle having a generally rectangular, laterally elongated cross section which is gradually enlarged toward an outlet opening formed at the foremost end of the defroster nozzle. A hot fluid jet is passed to this defroster nozzle and is sprayed onto the windshield through the outlet opening. The path of the fluid jet issuing from the defroster nozzle is periodically switched from one side wall of the defroster nozzle to the other so that the fluid jet is caused to spurt at varying angles in a side-to-side direction. The flaring configuration of the defroster nozzle is useful to provide a wall-attachment effect between the fluid jet and the inner surfaces of the side walls of the defroster nozzle. The windshield is thus defrosted practically throughout its total area, providing a clear frontal viewing from within the motor vehicle.
Inventors
- 👤 J Kakei
- 👤 H Yamaguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:18
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/34; B60H1/345; B60S; B60S1/00; B60S1/02; B60S1/54; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2229; Y10T137/2234
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
208 words
A device for oscillating a flow of fluid across a surface of a windshield of a motor vehicle comprising, a source of a flow of fluid, a main nozzle communicating with said source, an outlet nozzle leading from said main nozzle and having an outlet opening adjacent an end edge of a wind-shield, said outlet nozzle including a pair of spaced lateral wall members diverging toward said outlet and being disposed opposite each other and a pair of spaced side wall members secured to side edges of said lateral wall members and being disposed opposite each other to form a generally rectangle configuration diverging in cross section toward said outlet, a pair of control nozzles opening into and intermediate said main and outlet nozzles communicating through said side wall members and being disposed opposite each other, and a pair of pipelines each communicating with one of said control nozzles and terminating in a respective port formed in a portion of a common lateral wall member, each said port being disposed nearer to the side wall member opposite to the side wall member relative to which the corresponding control nozzle is dispoSed, each of said pipelines connecting with said respective port in said lateral wall member substantially perpendicularly thereto.
Claim 2
Independent Claim
208 words
A device for oscillating a flow of fluid across a surface of a windshield of a motor vehicle comprising, a source of a flow of fluid, a main nozzle communicating with said source, an outlet nozzle leading from said main nozzle and having an outlet opening adjacent an end edge of a wind-shield, said outlet nozzle including a pair of spaced lateral wall members diverging toward said outlet and being disposed opposite each other and a pair of spaced side wall members secured to side edges of said lateral wall members and being disposed opposite each other to form a generally rectangle configuration diverging in cross section toward said outlet, a pair of control nozzles opening into and intermediate said main and outlet nozzles communicating through said side wall members and being disposed opposite each other, and a pair of pipelines each communicating with one of said control nozzles and terminating in a respective port formed in a portion of a common lateral wall member, each said port being disposed nearer to the side wall member opposite to the side wall member relative to which the corresponding control nozzle is dispoSed, each of said pipelines connecting with said respective port in said lateral wall member substantially perpendicularly thereto.
Claim 3
Dependent Claim
18 words
A device according to claim 1, in which said side wall members are curved in a diverging configuration.
Claim 4
Dependent Claim
14 words
A device according to claim 1, including means to heat said flow of fluid.
Claim 5
Dependent Claim
48 words
A device according to claim 1, in which each said port is located downstream of a point at which attachment of the fluid flow to said side wall members takes place and substantially on center lines of the flows of fluid attached to said side wall members respectively.
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) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |