Apparatus for cleaning or de-icing a vehicle window

• US 20020137455A1
• Filed: 02/28/2002
• Published: 09/26/2002
• Est. Priority Date: 11/06/1998
• Status: Active Grant

• Current Assignee: Insight Capital, Ltd, M-Heat Investors, LLC, Muus Asset Management Company
• Original Assignee: Micro-Heat, Inc.
• Inventors: Arkashevski, Uri, Ivanov, Vyshislav, Rogozinski, Jossef
• Granted Patent: US 6,669,109 B2
• Time in Patent Office: Days
• US Class Current: 454/157
• CPC Class Codes: B60S 1/245 with particular rod arrangements between the motor driven axle and the wiper arm axle
• CPC Class Codes: B60S 1/482 combined with the operation of windscreen wipers
• CPC Class Codes: B60S 1/488 electrically
• CPC Class Codes: B60S 1/50 Arrangement of reservoir
• CPC Class Codes: B60S 1/52 Arrangement of nozzles; Liquid spreading meansnozzles per se B05B
• CPC Class Codes: B60S 1/524 arranged in wiper blades
• CPC Class Codes: B60S 2001/3836 characterised by cross-sectional shape

Abstract

Apparatus for cleaning or de-icing a vehicle window, including a reservoir for containing therein a washing fluid, a vessel having an inlet through which the washing fluid is received from the reservoir and an outlet through which the fluid is discharged for cleaning a vehicle window, and a first heating element disposed in the vessel for heating the fluid in the vessel, characterized by an auxiliary heating element being disposed in the vessel for heating the fluid in the vessel, wherein the auxiliary heating element is disposed at a bottom portion of the vessel and is operative to heat a quantity of fluid which is not necessarily sufficient to cover the first heating element.

Claims

1. Apparatus for cleaning or de-icing a vehicle window, comprising:

a reservoir for containing therein a washing fluid;

a vessel having an inlet through which the washing fluid is received from the reservoir and an outlet through which the fluid is discharged for cleaning a vehicle window; and

a first heating element disposed in the vessel for heating the fluid in the vessel;

characterized by

an auxiliary heating element being disposed in the vessel for heating the fluid in the vessel, wherein said auxiliary heating element is disposed at a bottom portion of the vessel and is operative to heat a quantity of fluid which is not necessarily sufficient to cover the first heating element.

2. Apparatus according to claim 1 and further comprising a plurality of sensors which feed data concerning at least one of a temperature and a fluid level of the fluid in the vessel to a controller, said controller controlling energization of the first and auxiliary heating elements in response to the data.

3. Apparatus according to claim 1 and further comprising a temperature sensor mounted in said auxiliary heating element.

4. Apparatus for cleaning or de-icing a vehicle window, comprising:

a reservoir for containing therein a washing fluid;

a vessel having an inlet through which the washing fluid is received from the reservoir and an outlet through which the fluid is discharged;

a spray head in fluid communication with the outlet through which the fluid is sprayed onto a vehicle window; and

a heating element disposed in the vessel for heating the fluid in said vessel;

characterized by

a temperature sensor mounted in propinquity to said spray head, said temperature sensor being in communication with a controller which controls heating of said heating element in response to a temperature sensed by said temperature sensor.

30. Apparatus according to claim 4 further comprising apparatus to prevent damage due to freezing of the fluid.

31. Apparatus according to claim 30 wherein said apparatus to prevent damage comprises a platform arranged for sliding in said vessel, said platform being operative to slide due to a force of said fluid pressing thereagainst during freezing of said fluid.

32. Apparatus according to claim 30 wherein said apparatus to prevent damage comprises a cap attached to said vessel and which is operative to move away from said vessel due to a force of said fluid pressing thereagainst during freezing of said fluid.

33. Apparatus according to claim 4 further comprising apparatus for shutting off electrical supply to said heating element.

34. Apparatus according to claim 33 wherein said apparatus for shutting off electrical supply comprises a fuse electrically connected to said heating element.

35. Apparatus according to claim 34 wherein said fuse is internal to said vessel and is in contact with said washing fluid in said vessel.

36. Apparatus according to claim 34 wherein said fuse comprises a body to which is soldered a cap portion at a soldered connection, said cap portion being biased by a biasing device, said fuse being electrically connected to said heating element through said soldered connection, wherein upon reaching a predetermined temperature, said soldered connection becomes weakened due to at least partial melting thereof, and said biasing device urges said cap portion off said body, thereby causing a break in electrical supply to said heating element.

37. Apparatus according to claim 34 wherein said fuse is mounted on a base which is sealed with respect to said vessel by means of an endcap which presses said base against an O-ring mounted on said vessel.

38. Apparatus according to claim 33 wherein said apparatus for shutting off electrical supply comprises a fuse which is physically internal to and electrically connected to said heating element.

39. Apparatus according to claim 33 wherein said apparatus for shutting off electrical supply comprises a first FET in electrical communication with said controller, a fuse external to said vessel and operatively connected to said first FET, a second FET operatively connected to said fuse, said second FET in communication with at least one of said temperature sensor, a thermostat mounted in said vessel, and logic circuitry in electrical communication with said second FET.

40. Apparatus according to claim 39 wherein if no command signal is sent to said first FET from said controller, said first FET is open and said heating element is not energized.

41. Apparatus according to claim 39 wherein if a command signal is sent to said first FET from said controller, said first FET is closed and said heating element is energized.

42. Apparatus according to claim 39 wherein if no command signal is sent to said first FET from said controller, but a near zero voltage drop exists across said first FET, then said second FET is commanded to close, thereby sending a current through said fuse which breaks said fuse and disconnects electrical supply to said heating element.

43. Apparatus according to claim 39 wherein if a command signal is sent to said first FET from said controller, but a voltage drop generally greater than zero exists across said first FET, then said apparatus for cleaning or de-icing a vehicle window is commanded to shut down.

44. Apparatus according to claim 4 and further comprising a solenoid in direct electrical communication with a control circuit printed circuit board (PCB) mounted in said vessel, said solenoid determining whether said fluid flows directly to said spray head or flows to said spray head via said vessel.

45. Apparatus according to claim 44 wherein said solenoid is attached to said PCB. 46.

46. Apparatus according to claim 44 wherein said PCB is selectively connectable to a vehicle computer, wherein operation of said solenoid and said apparatus for cleaning or de-icing a vehicle window is controllable by at least one of said PCB and said vehicle computer.

5. Apparatus for cleaning or de-icing a vehicle window, comprising:

a reservoir for containing therein a washing fluid;

a vessel having an inlet through which the washing fluid is received from the reservoir and an outlet through which the fluid is discharged;

a spray head in fluid communication with the outlet through which the fluid is sprayed onto a vehicle window; and

a heating element disposed in the vessel for heating the fluid in said vessel;

characterized by

a wind speed sensor in communication with a controller, wherein said controller correlates a wind speed sensed by said wind speed sensor to a temperature of the fluid sprayed from the spray head, and controls heating of said heating element in response to the wind speed sensed by said wind speed sensor.

6. Apparatus according to claim 5 and further comprising a vehicle speed sensor, wherein said controller also correlates a vehicle speed sensed by said vehicle speed sensor to a temperature of the fluid sprayed from the spray head, and controls heating of said heating element in response to the vehicle speed sensed by said vehicle speed sensor.

7. Apparatus for cleaning or de-icing a vehicle window, comprising:

a reservoir for containing therein a washing fluid;

a vessel having an inlet through which the washing fluid is received from the reservoir and an outlet through which the fluid is discharged for cleaning a vehicle window; and

a first heating element disposed in the vessel for heating the fluid in the vessel;

characterized by

a pumping system in fluid communication with said reservoir and said vessel which selectively pumps fluid from said reservoir to said vessel and drains said fluid from said vessel back to said reservoir.

8. Apparatus according to claim 7 and wherein said pumping system comprises at least one solenoid in fluid communication with said reservoir and said vessel and switchable from a first position to a second position, wherein in said first position said at least one solenoid permits flow from said reservoir to said vessel and substantially prevents draining said fluid from said vessel back to said reservoir, and wherein in said second position said at least one solenoid permits draining said fluid from said vessel back to said reservoir and substantially prevents flow from said reservoir to said-vessel.

9. Apparatus according to claim 7 and wherein said pumping system comprises a reversible pump which in a first operating orientation pumps said fluid from said reservoir to said vessel and in a second operating orientation pumps said fluid from said vessel back to said reservoir.

10. Apparatus according to claim 9 and wherein said reversible pump comprises a geared pump.

47. Apparatus according to claim 7 wherein said pumping system comprises a third operating orientation wherein said pumping system is stopped while the fluid is still flowing towards said vessel, and only after a delay, the fluid is re-routed from a direction towards said vessel to a direction away from said vessel.

11. Apparatus for cleaning or de-icing a vehicle window, comprising:

a reservoir for containing therein a washing fluid;

a vessel having an inlet through which the washing fluid is received from the reservoir and an outlet through which the fluid is discharged;

a spray head in fluid communication with the outlet through which the fluid is sprayed onto a vehicle window;

a windshield wiper for wiping said window; and

characterized by

said spray head comprising a multi-outlet spray head that comprises a plurality of spray outlets.

12. Apparatus according to claim 11 and further comprising a controller which controls a spraying pattern of said plurality of outlets.

13. Apparatus according to claim 12 and further comprising a sensor for sensing an angular position of said windshield wiper, wherein said controller controls the spraying pattern of said plurality of outlets in accordance with the angular position of said windshield wiper.

14. Apparatus according to claim 11 and further comprising a cam mounted on the windshield wiper said cam selectively opening said outlets to permit flow of said fluid there through.

15. Apparatus according to claim 12 and further comprising a motor which actuates the windshield wiper and a sensor for sensing a torque of said motor, wherein said controller controls the spraying pattern of said plurality of outlets in accordance with the torque of said motor.

16. Apparatus according to claim 11, wherein said windshield wiper wipes said window between two limits of travel, and said windshield wiper is placeable in a summer parking mode and a winter parking mode, wherein in said summer parking mode, said wiper is at rest generally at one of the limits of travel, and wherein in said winter parking mode, said wiper is between said limits of travel.

18. Apparatus according to claim 17 and wherein the fluid enters said bore at one end of said wiper and an opposite end of said wiper is substantially sealed.

20. Apparatus according to claim 19 and wherein said cartridge comprises a solid block of said additive.

21. Apparatus according to claim 19 and wherein said cartridge fits into an apertured holder which is sealed by a plug, said plug comprising a threaded neck and a neck portion formed with a plurality of through holes, said holes being in fluid communication with a bore which is in turn in fluid communication with said apertured holder, and wherein said threaded neck can be screwed into a container through which the fluid can flow into the vessel, wherein the additive is mixed with the fluid as the fluid flows through said container.

17. Apparatus for cleaning or de-icing a vehicle window, comprising:

a reservoir for containing therein a washing fluid;

a vessel having an inlet through which the washing fluid is received from the reservoir and an outlet through which the fluid is discharged;

a spray head in fluid communication with the outlet through which the fluid is sprayed onto a vehicle window;

a windshield wiper for wiping said window; and

characterized by

said windshield wiper having a longitudinal bore formed therethrough for flow of the fluid therethrough, wherein said bore fluidly communicates with a plurality of outlet holes formed in said wiper for applying the fluid on said window.

19. Apparatus for cleaning or de-icing a vehicle window, comprising:

a reservoir for containing therein a washing fluid;

a vessel having an inlet through which the washing fluid is received from the reservoir and an outlet through which the fluid is discharged for cleaning a vehicle window; and

characterized by

further comprising a cartridge which dispenses an-additive to the fluid prior to discharging the fluid.

22. Apparatus for cleaning or de-icing a vehicle window, comprising:

a reservoir for containing therein a washing fluid;

a vessel having an inlet through which the washing fluid is received from the reservoir and an outlet through which the fluid is discharged for cleaning a vehicle window; and

characterized by

further comprising a fluid authorization system for verifying use of an authorized fluid.

23. Apparatus according to claim 22 and wherein said fluid authorization system comprises a membrane constructed of a material that disintegrates if it is not in the presence of a fluid authorized for use.

26. The solenoid according to claim 25, wherein said at least one tube has a circular cross section.

27. The solenoid according to claim 25, wherein said at least one tube has a non-circular cross section.

28. The solenoid according to claim 25 and comprising two said tubes and wherein said electromagnetic apparatus moves said shaft to a position so that fluid can pass through both said tubes.

29. The solenoid according to claim 25, wherein said at least one tube has a resiliency such that when said at least one tube returns from a compressed state to a non-compressed state, said at least one tube applies a force on said shaft to aid in the generally linear movement of said shaft.

24. Apparatus for cleaning or de-icing a vehicle window, comprising:

a reservoir for containing therein a washing fluid;

a vessel having an inlet through which the washing fluid is received from the reservoir and an outlet through which the fluid is discharged for cleaning a vehicle window; and

characterized by

further comprising at least one tube in fluid communication with the fluid and a solenoid which selectively squeezes and seals said at least one tube to prevent passage of the fluid therethrough and selectively permits flow of the fluid therethrough.

25. A solenoid comprising:

a tube receiving member;

at least one tube which passes through said tube receiving member;

a shaft arranged for generally linear movement relative to said tube receiving member, said shaft selectively squeezing and sealing said at least one tube against said tube receiving member to prevent passage of the fluid therethrough, and selectively moving away from said at least one tube to permit flow of the fluid therethrough; and

electromagnetic apparatus which moves said shaft generally linearly.