US4400845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Windshield wiper
Assignee: Soken Inc
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Filing: 1981-05-20
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Granted: 1983-08-30
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Expires: 2001-05-20
Abstract
Abstract A windshield wiper for an automotive vehicle has a flat plate located in an inclined position in which an edge of the flat plate that is upstream with respect to the air flow above the surface of the windshield is disposed closer to the surface of the windshield than the downstream edge. The flat plate also has a plurality of deflectors for disturbing the air flow. One of the deflectors is located at the upstream edge of the flat plate on the side facing the windshield and the other deflector is located at the downstream edge of the flat plate on the side opposite the windshield.
Inventors
- 👤 Hiroki Noguchi
- 👤 Akira Fukami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:00
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/32; B60S1/38; B60S1/3806
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
224 words
A windshield wiper comprising: a wiper blade including an elongated resilient member for wiping a windshield surface of a vehicle and a lever for holding said resilient member against such surface; a wiper arm having one end thereof connected to said lever and the other end connected to a body of the vehicle for effecting oscillation of said blade; a flat plate forming a portion of said lever and having opposite edge portions disposed upstream and downstream with respect to the air flow produced above the windshield surface upon the high speed running of the vehicle, said flat plate being inclined with respect to said windshield surface such that said upstream edge portion is located closer to said windshield surface than said downstream edge portion; said flat plate being disposed such that the angle defined between the windshield surface and said flat plate is of the order of 35-45 degrees; at least one upstream obstruction for disturbing the air flow, said upstream obstruction being disposed on said upstream edge portion of said flat plate so as to project from said flat plate toward the windshield surface; and at least one downstream obstruction for disturbing said air flow, said downstream obstruction being disposed on said downstream edge portion of said flat plate so as to project from said flat plate away from the windshield surface.
Claim 2
Dependent Claim
224 words
A windshield wiper comprising: a wiper blade including an elongated resilient member for wiping a windshield surface of a vehicle and a lever for holding said resilient member against such surface; a wiper arm having one end thereof connected to said lever and the other end connected to a body of the vehicle for effecting oscillation of said blade; a flat plate forming a portion of said lever and having opposite edge portions disposed upstream and downstream with respect to the air flow produced above the windshield surface upon the high speed running of the vehicle, said flat plate being inclined with respect to said windshield surface such that said upstream edge portion is located closer to said windshield surface than said downstream edge portion; said flat plate being disposed such that the angle defined between the windshield surface and said flat plate is of the order of 35-45 degrees; at least one upstream obstruction for disturbing the air flow, said upstream obstruction being disposed on said upstream edge portion of said flat plate so as to project from said flat plate toward the windshield surface; and at least one downstream obstruction for disturbing said air flow, said downstream obstruction being disposed on said downstream edge portion of said flat plate so as to project from said flat plate away from the windshield surface.
Claim 3
Dependent Claim
26 words
A windshield wiper as claimed in claim 1, wherein said deflectors at the upstream and the downstream edges of the flat plate comprise linear reinforcing members.
Claim 4
Dependent Claim
34 words
A windshield wiper as claimed in claim 1, wherein said obstructions at the upstream and the downstream edges of the flat plate comprise bent portions formed by bending edge portions of the flat plate.
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) | 1986-08-29 | 1987-02-28 | 1987-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-29 | 1991-02-28 | 1991-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-29 | 1995-02-28 | 1995-08-30 | $7700.00 | Window Closed / Lapsed |