US3594846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Windshield washer
Assignee: Individual
•
Filing: 1968-05-07
•
Granted: 1971-07-27
•
Expires: 1988-05-07
Abstract
Abstract A windshield washer system for an automobile is disclosed having a switch responsive to the amount of water sprayed on the windshield by the system to operate the windshield wiper for a predetermined time. The switch includes a pair of contacts actuated by an inflatable bulb. The inflatable bulb expands dependent upon the amount of water flowing through the system and sprayed upon the windshield. A second embodiment is disclosed having a second switch responsive to the flow of detergent through the system to be sprayed upon the windshield to cause predetermined amounts of water to be sprayed upon the windshield and predetermined operation of the windshield wiper.
Inventors
- 👤 Seiji Kimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:48
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/46; B60S1/48; B60S1/481; B60S1/482
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
339 words
In a windshield washer of the type having windshield wiper means and means for dispensing a fluid upon a windshield for assisting in the cleaning of said windshield: automatic switch means operatively connected to said wiper means and responsive to the operation of said dispensing means for causing the operation of said wiper means; said automatic switch means including diaphragm means; conduit means between said dispensing means and said diaphragm means for distributing a portion of said dispensed fluid to said diaphragm means; said diaphragm means being an inflatable bulb means which is gradually inflatable continuously over a period of time by said portion of said fluid dispensed by said dispensing means; flow restriction means connected in said conduit means between said dispensing means and said diaphragm means for causing fluid to gradually enter said inflatable bulb means, said flow restriction mean also being adapted to cause said bulb means to deflate at a predetermined gradual rate after said dispensing mean has ceased operating; whereby said flow restriction means maintain said wiper means in operation for a predetermined period of time dependent upon the amount of fluid dispensed by said dispensing means; electrical contact means associaTed with said wiper means; means operatively connected between said diaphragm means and said electrical contact means for actuating said electrical contact means to cause operation of said wiper means upon the flow of said dispensed fluid to said diaphragm means and upon the inflation of said inflatable bulb mean; second automatic switch means and second dispensing means for dispensing a second fluid upon said windshield; said second automatic switch means operatively connected to said wiper means and being responsive to the operation of said second dispensing means for causing the operation of said wiper means; said second switch means further including means operatively connected to said first dispensing means responsive to the termination of operation of said first dispensing means for causing the operation of said first dispensing means for a predetermined time thereafter dependent upon the amount of said second fluid dispensed.
Claim 2
Dependent Claim
339 words
In a windshield washer of the type having windshield wiper means and means for dispensing a fluid upon a windshield for assisting in the cleaning of said windshield: automatic switch means operatively connected to said wiper means and responsive to the operation of said dispensing means for causing the operation of said wiper means; said automatic switch means including diaphragm means; conduit means between said dispensing means and said diaphragm means for distributing a portion of said dispensed fluid to said diaphragm means; said diaphragm means being an inflatable bulb means which is gradually inflatable continuously over a period of time by said portion of said fluid dispensed by said dispensing means; flow restriction means connected in said conduit means between said dispensing means and said diaphragm means for causing fluid to gradually enter said inflatable bulb means, said flow restriction mean also being adapted to cause said bulb means to deflate at a predetermined gradual rate after said dispensing mean has ceased operating; whereby said flow restriction means maintain said wiper means in operation for a predetermined period of time dependent upon the amount of fluid dispensed by said dispensing means; electrical contact means associaTed with said wiper means; means operatively connected between said diaphragm means and said electrical contact means for actuating said electrical contact means to cause operation of said wiper means upon the flow of said dispensed fluid to said diaphragm means and upon the inflation of said inflatable bulb mean; second automatic switch means and second dispensing means for dispensing a second fluid upon said windshield; said second automatic switch means operatively connected to said wiper means and being responsive to the operation of said second dispensing means for causing the operation of said wiper means; said second switch means further including means operatively connected to said first dispensing means responsive to the termination of operation of said first dispensing means for causing the operation of said first dispensing means for a predetermined time thereafter dependent upon the amount of said second fluid dispensed.
Claim 3
Dependent Claim
304 words
In a windshield washer of the type having windshield wiper means and means for dispensing a fluid upon a windshield for assisting in the cleaning of said windshield: automatic switch means operatively connected to said wiper means and responsive to the operation of said dispensing means for causing the operation of said wiper means; said automatic switch means including diaphragm mean; conduit means between said dispensing means and said diaphragm means for distributing a portion of said dispensed fluid to said diaphragm means; said diaphragm means being an inflatable bulb means which is inflatable by said portion of said fluid dispensed by said dispensing mean; flow restriction means connected in said conduit means between said dispensing means and said diaphragm means for causing fluid to gradually enter said inflatable bulb means; said flow restriction means also being adapted to cause said bulb means to deflate at a predetermined gradual rate after said dispensing means has ceased operating; electrical contact means associated with said wiper means; means operatively connected between said diaphragm means and said electrical contact mean for actuating said electrical contact means to cause operation of said wiper means upon the flow of said dispensed fluid to said diaphragm means and upon the inflation of said inflatable bulb means; second automatic switch means and second dispensing means for dispensing a second fluid upon said windshield; said second automatic switch means operatively connected to said wiper means and being responsive to the operation of said second dispensing means for causing the operation of said wiper means; said second switch means further including means operatively connected to said first dispensing means responsive to the termination of operation of said second dispensing means for causing the operation of said first dispensing means for a predetermined time thereafter dependent upon the amount of said second fluid dispensed.
Claim 4
Dependent Claim
304 words
In a windshield washer of the type having windshield wiper means and means for dispensing a fluid upon a windshield for assisting in the cleaning of said windshield: automatic switch means operatively connected to said wiper means and responsive to the operation of said dispensing means for causing the operation of said wiper means; said automatic switch means including diaphragm mean; conduit means between said dispensing means and said diaphragm means for distributing a portion of said dispensed fluid to said diaphragm means; said diaphragm means being an inflatable bulb means which is inflatable by said portion of said fluid dispensed by said dispensing mean; flow restriction means connected in said conduit means between said dispensing means and said diaphragm means for causing fluid to gradually enter said inflatable bulb means; said flow restriction means also being adapted to cause said bulb means to deflate at a predetermined gradual rate after said dispensing means has ceased operating; electrical contact means associated with said wiper means; means operatively connected between said diaphragm means and said electrical contact mean for actuating said electrical contact means to cause operation of said wiper means upon the flow of said dispensed fluid to said diaphragm means and upon the inflation of said inflatable bulb means; second automatic switch means and second dispensing means for dispensing a second fluid upon said windshield; said second automatic switch means operatively connected to said wiper means and being responsive to the operation of said second dispensing means for causing the operation of said wiper means; said second switch means further including means operatively connected to said first dispensing means responsive to the termination of operation of said second dispensing means for causing the operation of said first dispensing means for a predetermined time thereafter dependent upon the amount of said second fluid dispensed.
Claim 5
Dependent Claim
25 words
In a windshield washer system as set forth in claim 2, wherein wherein said first fluid is water and said second fluid is a detergent.
Claim 6
Dependent Claim
150 words
In a windshield washer system set forth in claim 3 wherein said second automatic switch means includes second inflatable bulb means; conduit means connected between said second dispensing means and said second inflatable bulb mean for diverting a portion of said detergent dispensed to said second bulb means thereby inflating said second bulb means; a second movable shaft movable in response to the inflation and deflation of said second bulb means; electrical contact support means rigidly secured in said second automatic switch mean; first contact means mounted to said support means and electrically connected to said wiper means; second contact means mounted to said support means and electrically connected to ground; and cylindrical bridging contact means on said movable second shaft and movable with said second shaft upon inflation of said second bulb means to engage said first and second contact means and comPlete a circuit to said wiper means.
Claim 7
Dependent Claim
134 words
In a windshield washer system as set forth in claim 4 further including third contact means on said support means electrically connected to said first dispensing means; fourth contact means on said support means electrically connected to ground through said cylindrical bridging contact when said second bulb means is inflated; and ring contact means movable mounted to said second shaft movable out of engagement with said third and fourth contacts during inflation of said second bulb means and movable into engagement with said third and fourth contacts during deflation of said second bulb means to complete a circuit to said first dispensing means whereby said first dispensing means is operated after said second dispensing means has ceased operating and for a predetermined time depending upon the degree of inflation of said second inflatable bulb.
Claim 8
Dependent Claim
24 words
In a windshield washer system as set forth in claim 1 wherein said first fluid is water and said second fluid is a detergent.
References Cited (Backward Citations)
US2914256A
Cited
US2927337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |