HEATED WINDSHIELD WASHER SYSTEM

• US 3,632,042 A
• Filed: 10/20/1969
• Issued: 01/04/1972
• Est. Priority Date: 10/20/1969
• Status: Expired due to Term

• Current Assignee: Joseph N. Goulish, Robert E. Owen
• Original Assignee: Joseph N. Goulish, Robert E. Owen
• Inventors: Owen, Robert E., Goulish, Joseph N.
• Primary Examiner(s): Wood, Jr., M. Henson
• Assistant Examiner(s): Mar, Michael Y.
• Application Number:
  US04/867,515
• Time in Patent Office: 806 Days
• Field of Search: 239/128,130,139,284
• US Class Current: 239/130
• CPC Class Codes: B60S 1/487 the liquid being heated nozzles provided with heating means B60S1/52

Abstract

In a preferred form, this disclosure relates to a windshield washer system for washing the windshield of an automotive vehicle. The windshield washer system includes a nozzle means for directing washer fluid against the windshield, a reservoir for containing the washer fluid, a pump assembly having an inlet and an outlet, first and second conduit means for communicating the reservoir with the inlet of the pump assembly and the outlet of the pump with the nozzle means, and a heater means in the form of a conduit means through which heated engine coolant fluid is circulated. The latter conduit means is in heat exchange relationship with the reservoir, the first and second conduit means and the nozzle means whereby the washer fluid is heated while in the reservoir and throughout its path of movement from the reservoir to the nozzle means.

Claims

1. A windshield washer system for washing a windshield of an automotive vehicle comprising:

nozzle means adapted to be located adjacent the windshield for directing washer fluid against the windshield;

a reservoir for containing washer fluid;

a pump assembly having an inlet and an outlet;

first conduit means for communicating said reservoir with said inlet of said pump assembly;

second conduit means for communicating said outlet of said pump assembly with said nozzle means;

third conduit means which is adapted to be connected with the engine coolant system of the vehicle and through which a portion of the engine coolant fluid is adapted to be circulated, said third conduit means having a portion of its length disposed within said reservoir, being substantially concentrically disposed within and extending throughout the full length of said first and second conduit means and extending through said nozzle means whereby said washer fluid is heated while in said reservoir and throughout its path of movement from said reservoir to said nozzle means.

2. In an automotive vehicle having a windshield, an engine, an engine coolant system for cooling the engine and a windshield washer system for washing the windshield of the vehicle, said windshield washer system comprising:

nozzle means located adjacent the windshield for directing washer fluid against the windshield;

a reservoir for containing washer fluid;

pump means including an adapter means having a straight through opening and having an inlet and an outlet;

first conduit means for communicating said reservoir with said inlet of said adapter means;

second conduit means for communicating the outlet of the adapter means with said nozzle means;

third conduit means operatively connected with the engine coolant system of the vehicle for circulating heated engine coolant therethrough;

said third conduit means having a portion of its length disposed within said reservoir and being concentrically disposed within said first and second conduit means and extending through said through opening in said adapter means and said nozzle means whereby said washer fluid is heated while in said reservoir and throughout its path of movement from said reservoir to said nozzle means;

said third conduit means being of a smaller diameter than said first and second conduit means whereby said washer fluid circulates between said conduit means while said heated coolant fluid flows through said third conduit means; and

an annular resilient sealing member disposed within said through opening in said adapter means and resiliently engaging said third conduit means to block communication between said inlet and outlet of said adapter means except through said pump means.

3. In an automotive vehicle as defined in claim 2, wherein said portion of said third conduit means disposed within said reservoir is W-shaped.

4. In an automotive vehicle as defined in claim 2, wherein said nozzle means comprises a T-shaped connector means having a through opening therethrough through which the third conduit extends and a nozzle portion for delivering the washer fluid in jet form against the windshield.