US3703017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alternating squirt windshield washer
Assignee: Motors Liquidation Co
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Filing: 1970-12-07
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Granted: 1972-11-21
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Expires: 1990-12-07
Abstract
Abstract In a preferred form, this disclosure relates to a windshield cleaning apparatus for cleaning a windshield of an automotive vehicle. The windshield cleaning apparatus comprises a wiper unit having first and second oscillatable windshield wipers which are movable in opposite directions through inboard and outboard strokes during each cycle of operation and a washer unit having a pump and a diverter valve means actuated in timed relationship with the wiper unit to effect alternate squirting of all of the washer fluid being delivered by the pump in the path of movement of the first wiper as the latter is moved through its inboard stroke and to squirt all of the washer fluid being delivered by the pump in the path of movement of the second wiper as the latter is being moved through its outboard stroke during each cycle of operation of the wipers.
Inventors
- 👤 Ralph W Edwards
- 👤 Ronald G Petry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:21
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/46; B60S1/48; B60S1/481; B60S1/482; B60S1/483
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
360 words
A windshield cleaning apparatus for cleaning a windshield of an automotive vehicle comprising: a wiper unit having a wiper motor and first and second windshield wipers which are oscillatable in tandem in opposite directions through inboard and outboard strokes during each cycle of operation; a washer unit including first and second washer nozzles carried by said first and second windshield wipers for directing washer fluid ahead of the wiper movement during movement of the windshield wipers through their inboard and outboard strokes, respectively, a washer pump for delivering washer fluid under pressure when energized, a diverter valve means having an inlet in communication with said washer pump and first and second outlets in communication with said first and second nozzles, respectively, said diverter valve means including a valve member movable between a first position in which it blocks communication between said inlet and said second outlet and unblocks communication between said inlet and said first outlet and a second position in which it blocks communication between said inlet and said first outlet and unblocks communication between said inlet and said second outlet, a rotataBle cam means driven in timed relationship with said wiper motor, an actuating means including spring means operatively connected with said valve member for biasing the same toward its second position, said cam means being in engagement with said actuating means and being operable to effect movement of said valve member to its first position in opposition to the biasing force of the spring means to cause all of the washer fluid delivered by the pump to be directed to the first washer nozzle when said wipers are being moved through their inboard stroke and allowing said actuating means to effect movement of said valve member to its second position to cause all of the washer fluid being delivered by the pump to be directed to the second nozzle when said wipers are moving through their outboard stroke whereby washer fluid is alternately directed ahead of the first wiper during movement thereof through its inboard stroke and ahead of the second wiper during movement thereof through its outboard stroke during each cycle of operation of the wipers.
Claim 2
Dependent Claim
360 words
A windshield cleaning apparatus for cleaning a windshield of an automotive vehicle comprising: a wiper unit having a wiper motor and first and second windshield wipers which are oscillatable in tandem in opposite directions through inboard and outboard strokes during each cycle of operation; a washer unit including first and second washer nozzles carried by said first and second windshield wipers for directing washer fluid ahead of the wiper movement during movement of the windshield wipers through their inboard and outboard strokes, respectively, a washer pump for delivering washer fluid under pressure when energized, a diverter valve means having an inlet in communication with said washer pump and first and second outlets in communication with said first and second nozzles, respectively, said diverter valve means including a valve member movable between a first position in which it blocks communication between said inlet and said second outlet and unblocks communication between said inlet and said first outlet and a second position in which it blocks communication between said inlet and said first outlet and unblocks communication between said inlet and said second outlet, a rotataBle cam means driven in timed relationship with said wiper motor, an actuating means including spring means operatively connected with said valve member for biasing the same toward its second position, said cam means being in engagement with said actuating means and being operable to effect movement of said valve member to its first position in opposition to the biasing force of the spring means to cause all of the washer fluid delivered by the pump to be directed to the first washer nozzle when said wipers are being moved through their inboard stroke and allowing said actuating means to effect movement of said valve member to its second position to cause all of the washer fluid being delivered by the pump to be directed to the second nozzle when said wipers are moving through their outboard stroke whereby washer fluid is alternately directed ahead of the first wiper during movement thereof through its inboard stroke and ahead of the second wiper during movement thereof through its outboard stroke during each cycle of operation of the wipers.
Claim 3
Dependent Claim
360 words
A windshield cleaning apparatus for cleaning a windshield of an automotive vehicle comprising: a wiper unit having a wiper motor and first and second windshield wipers which are oscillatable in tandem in opposite directions through inboard and outboard strokes during each cycle of operation; a washer unit including first and second washer nozzles carried by said first and second windshield wipers for directing washer fluid ahead of the wiper movement during movement of the windshield wipers through their inboard and outboard strokes, respectively, a washer pump for delivering washer fluid under pressure when energized, a diverter valve means having an inlet in communication with said washer pump and first and second outlets in communication with said first and second nozzles, respectively, said diverter valve means including a valve member movable between a first position in which it blocks communication between said inlet and said second outlet and unblocks communication between said inlet and said first outlet and a second position in which it blocks communication between said inlet and said first outlet and unblocks communication between said inlet and said second outlet, a rotataBle cam means driven in timed relationship with said wiper motor, an actuating means including spring means operatively connected with said valve member for biasing the same toward its second position, said cam means being in engagement with said actuating means and being operable to effect movement of said valve member to its first position in opposition to the biasing force of the spring means to cause all of the washer fluid delivered by the pump to be directed to the first washer nozzle when said wipers are being moved through their inboard stroke and allowing said actuating means to effect movement of said valve member to its second position to cause all of the washer fluid being delivered by the pump to be directed to the second nozzle when said wipers are moving through their outboard stroke whereby washer fluid is alternately directed ahead of the first wiper during movement thereof through its inboard stroke and ahead of the second wiper during movement thereof through its outboard stroke during each cycle of operation of the wipers.
Claim 4
Dependent Claim
360 words
A windshield cleaning apparatus for cleaning a windshield of an automotive vehicle comprising: a wiper unit having a wiper motor and first and second windshield wipers which are oscillatable in tandem in opposite directions through inboard and outboard strokes during each cycle of operation; a washer unit including first and second washer nozzles carried by said first and second windshield wipers for directing washer fluid ahead of the wiper movement during movement of the windshield wipers through their inboard and outboard strokes, respectively, a washer pump for delivering washer fluid under pressure when energized, a diverter valve means having an inlet in communication with said washer pump and first and second outlets in communication with said first and second nozzles, respectively, said diverter valve means including a valve member movable between a first position in which it blocks communication between said inlet and said second outlet and unblocks communication between said inlet and said first outlet and a second position in which it blocks communication between said inlet and said first outlet and unblocks communication between said inlet and said second outlet, a rotataBle cam means driven in timed relationship with said wiper motor, an actuating means including spring means operatively connected with said valve member for biasing the same toward its second position, said cam means being in engagement with said actuating means and being operable to effect movement of said valve member to its first position in opposition to the biasing force of the spring means to cause all of the washer fluid delivered by the pump to be directed to the first washer nozzle when said wipers are being moved through their inboard stroke and allowing said actuating means to effect movement of said valve member to its second position to cause all of the washer fluid being delivered by the pump to be directed to the second nozzle when said wipers are moving through their outboard stroke whereby washer fluid is alternately directed ahead of the first wiper during movement thereof through its inboard stroke and ahead of the second wiper during movement thereof through its outboard stroke during each cycle of operation of the wipers.
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) | 1975-11-21 | 1976-05-22 | 1976-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-21 | 1980-05-22 | 1980-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-21 | 1984-05-22 | 1984-11-21 | $7700.00 | Window Closed / Lapsed |