U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Electric heater-blower apparatus for removing frost and snow from vehicle windows

Patent 4366368 Issued on December 28, 1982. Estimated Expiration Date: Icon_subject December 28, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

1168219

1622803

1751841

1838438

1918927

2148726

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Inventor

Application

No. 06/101008 filed on 12/06/1979

US Classes:

392/385, Pistol-grip type15/405, Air blast only15/416, With plural mouths selectively usable, e.g., "duplex" nozzles219/203, Windshield or window239/446, Integral or rigidly interconnected valving means239/562, And flow regulation or control of outlets34/666, Car dryer34/97With gas or vapor flow for contact

Examiners

Primary: Bartis, A.

Attorney, Agent or Firm

International Classes

F24H 3/02 (20060101)
F24H 3/06 (20060101)

Abstract

A portable frost and snow removing appliance for use in removing ice and snow from the surfaces of vehicle windows includes an elongated housing having a pistol handgrip at one end and containing an electrically operated two-speed blower and a resistance heater arranged to produce a high speed jet of unheated air or a slower stream of heated air through a discharge nozzle shiftably mounted on the other end of the housing and movable between first and second positions. The housing includes a lateral air outlet in a side wall between the heater and nozzle. The nozzle includes as a unitary one-piece structure therewith valve members within the housing and nozzle and cooperatively associated with the housing other end and the lateral air outlet to inversely open and close the lateral outlet and housing other end in response to shifting of the nozzle to its first and second positions, respectively, to permit air to be selectively discharged from either the nozzle or lateral air outlet. The housing is capable of being placed on its side upon the upper surface of a vehicle dash and operated in a manner to discharge heated air through the lateral air outlet upwardly along the inner windshield surface.

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