B - Operations – Transporting – 05 – C
Patent
B - Operations, Transporting
05
C
342/29.31
B05C 3/20 (2006.01) B60S 1/48 (2006.01)
Patent
CA 1044786
WINDSHIELD WIPER CONTROL CIRCUIT Abstract of the Disclosure: A windshield wiper control circuit which provides continuous and pulse wiping modes and which includes a wash unit override through which the washer unit may be energized while the wiper is operating in either mode. The drive motor energizing circuit is completed through the contacts of an electrical relay, the operating coil of which may be grounded through three separate circuits including, respectively, the contacts of a selector switch and a manual wash cycle switch in parallel, a transistor Darlington pair, and two normally closed contacts which are operated by the drive motor to the electrical circuit open condition when the wiper is in the inner wipe or "home" position. When the selector switch is operated to the Run position, the relay operating coil and drive motor are continuously energized to operate the wiper in the continuous mode and when operated to the Pulse posi- tion, the selector switch ground is removed from the relay operating coil and ground therefor is provided through the transistor Darlington pair which are triggered conductive at spaced intervals by a pulse control timing circuit coupled thereto to operate the wiper in the pulse mode. When the manual wash cycle switch is operated to the Wash position while the wipers are off or in either operating mode, the washer unit is immediately activated to deliver wash fluid to the windshield during a wash cycle. In addition, the wiper motor is immedi- ately reactivated to an operating condition. At the conclusion of the wash fluid delivery cycle, additional drying wipes are provided and then the unit automatically returns to its pre- vious operating mode.
219059
Bischoff Leo E.
Keller Chris F. (jr.)
LandOfFree
Windshield wiper control circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Windshield wiper control circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Windshield wiper control circuit will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1153396