Patent US4768256A successfully refreshed from Google Patents.
US4768256A
Expired / Lapsed
US
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Ultrasonic wiper
Assignee: Motoda Electronics Co Ltd
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Filing: 1986-11-07
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Granted: 1988-09-06
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Expires: 2006-11-07
Abstract
Abstract An ultrasonic wiper for conveying a fluid off of a windshield glass of a vehicle characterized by comprising ultrasonic oscillators which excite progressive waves in the glass in a predetermined directional movement.
Inventors
- 👤 Kenro Motoda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:24
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
148 words
Apparatus for conveying a fluid from glass having a fluid contacting outer surface and an inner surface and having first and second distal edges, comprising: plural first oscillator means mounted on said inner surface adjacent said first edge; plural first ultrasonic oscillating circuits for driving said first oscillator means, whereby multiple first progressive waves moving away from said first edge are formed on said outer surface when said first oscillating circuits are operating; plural second oscillator means mounted on said inner surface adjacent said second edge; plural second ultrasonic oscillating circuits for driving said second oscillator means, whereby multiple second progressive waves moving away from said second edge are formed on said outer surface when said second oscillating circuits are operating; first receiving means adjacent said second edge for receiving said first progressive waves; and second receiving means adjacent said first edge for receiving said second progressive waves;
Claim 2
Dependent Claim
148 words
Apparatus for conveying a fluid from glass having a fluid contacting outer surface and an inner surface and having first and second distal edges, comprising: plural first oscillator means mounted on said inner surface adjacent said first edge; plural first ultrasonic oscillating circuits for driving said first oscillator means, whereby multiple first progressive waves moving away from said first edge are formed on said outer surface when said first oscillating circuits are operating; plural second oscillator means mounted on said inner surface adjacent said second edge; plural second ultrasonic oscillating circuits for driving said second oscillator means, whereby multiple second progressive waves moving away from said second edge are formed on said outer surface when said second oscillating circuits are operating; first receiving means adjacent said second edge for receiving said first progressive waves; and second receiving means adjacent said first edge for receiving said second progressive waves;
Claim 3
Dependent Claim
21 words
Apparatus as defined in claim 1 wherein said first and second oscillator means further comprise transformer means adjacent said inner surface.
Claim 4
Dependent Claim
13 words
Apparatus as defined in claim 2 wherein said transformer means comprise horn-type transformers.
Claim 5
Dependent Claim
67 words
An ultrasonic wiper for removing fluid from glass having a fluid-contacting outer surface and an inner surface, comprising: first oscillator means mounted on said inner surface for forming a progressive wave on said outer surface; and first receiving means mounted on said inner surface for receiving said progressive waves, whereby said progressive waves move toward said first receiving means conveying said fluid toward said first oscillator means.
Claim 6
Dependent Claim
67 words
An ultrasonic wiper for removing fluid from glass having a fluid-contacting outer surface and an inner surface, comprising: first oscillator means mounted on said inner surface for forming a progressive wave on said outer surface; and first receiving means mounted on said inner surface for receiving said progressive waves, whereby said progressive waves move toward said first receiving means conveying said fluid toward said first oscillator means.
Claim 7
Dependent Claim
38 words
The ultrasonic wiper of claim 4 wherein: said first oscillator means comprises a second receiving means; said first receiver means comprises a second oscillator means; and further comprising switching means for reversing the direction of said progressive waves.
Claim 8
Dependent Claim
107 words
An ultrasonic wiper for removing fluid from glass having a fluid-contacting outer surface and an inner surface, comprising: generating means for generating high frequency electrical power; a piezoelectric body attached to said inner surface; plural electrodes attached to said piezoelectric body, said electrodes being divided equally among three circuits; and a phase converter for connecting said high frequency electrical power to said electrodes and for shifting the phase of each of said three circuits approximately 120 degrees with respect to each of the other said three circuits, whereby progressive waves are formed on said outer surface moving in a predetermined direction when said generating means is operating.
Claim 9
Dependent Claim
107 words
An ultrasonic wiper for removing fluid from glass having a fluid-contacting outer surface and an inner surface, comprising: generating means for generating high frequency electrical power; a piezoelectric body attached to said inner surface; plural electrodes attached to said piezoelectric body, said electrodes being divided equally among three circuits; and a phase converter for connecting said high frequency electrical power to said electrodes and for shifting the phase of each of said three circuits approximately 120 degrees with respect to each of the other said three circuits, whereby progressive waves are formed on said outer surface moving in a predetermined direction when said generating means is operating.
Claim 10
Dependent Claim
32 words
The ultrasonic wiper of claim 6 further comprising switching means for reversing the phase shifting of said phase converter whereby the direction of said progressive waves is opposite to said predetermined direction.
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) | 1991-09-06 | 1992-03-07 | 1992-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-06 | 1996-03-07 | 1996-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-06 | 2000-03-07 | 2000-09-06 | $7700.00 | Window Closed / Lapsed |