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Publication numberUS1925423 A
Publication typeGrant
Publication dateSep 5, 1933
Filing dateJul 23, 1931
Priority dateJul 23, 1931
Publication numberUS 1925423 A, US 1925423A, US-A-1925423, US1925423 A, US1925423A
InventorsAustin E Stutzman, Jr William H Warhus
Original AssigneeAustin E Stutzman, Jr William H Warhus
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1925423 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

Sept. 5, 1933. w. H. wARHUs, JR., Er AL 1,925,423

HEADLIGHT Filed July 23. 1931 2 Sheets-Sheetl l Inventors Bymmzm jl Homey Sept. 5, 1933. w, H. wARHus, JR., ET AL 1,925,423

HEADLIGHT Filed July 23. 1951 2 Sheets-Sheet 2 Inventors f1 Homey Patented Sept. 5, 1933 i UNITED STATES HEADLIGHT William H. Warhus, Jr., and Austin E. Stutzman, Buffalo, N. Y.

Application July 23, 1931. Serial No. 552,750

3 Claims. (Cl. 219--19) This invention relates to certain new and useful improvements in headlights, having particular reference to a headlight for vehicles such as automobiles, and the primary object of the inven- 5 tion is to prevent condensation on the lens of the headlight.

A still further object of the invention is to provide a headlight equipped with a heating element disposed in operative position with respect 10 to the lens for melting snow, ice and sleet as might otherwise accummulate on the headlight lens, thus impairing the usefulness of the headlights.

Other objects and advantages of the invention will be apparent from a study of the following description, taken in connection with the accompanying drawings wherein:

Figure 1V is an elevational View of the invention, the same being shown applied to a headlight, and looking inwardly of the headlight from the rear or back thereof.

Figure 2 is a longitudinal sectional view through the headlight clearly illustrating the invention.

Figure 3 is a fragmentary detail sectional elevational view showing the means of supporting one end of the resistance coil on a supporting bar provided therefor.

Figure 4 is a front elevational view of a headlight illustrating aslightly modified form of the invention.

Figure 5 is a transverse sectional view taken substantially on the line 5 5 of Figure 4.

Referring more in detail to the drawings, it will be apparent that we have shown our invention as applied to a somewhat conventional type of automobile headlight, the parts of which to be specifically referred to in describing the invention, being the casing 5, reflector 6 and lens '7.

In the form of the invention shown in Figures l. to 3 inclusive it will be seen that there is provided a substantially T-shaped supporting member, the same including a transverse head bar 8 extending transversely of the casing adjacent the inner side ci the lens 7, and in slight spaced relation to the bottom portion of the lens. The stern e er shank portion of the T support is indicated by the reference character 9 and extends upwardly between the top of the casing, and the cross head 8.

The cross head 8 inwardly from the end thereof is provided with an integral upstanding web 9, that is provided with a rearwardly extending apertured lug 10.

Supported between the lugs 10 is a resistance wire or coil 11, which at its ends is secured to suitable binding posts or terminals 12 that are supported in the lugs 10 and insulated therefrom as at 13. y

The coil 11 is connected in circuit with the battery and any suitable switch may be arranged in @0' the circuit for controlling energization of the coil.

In actual practice, during inclement weather, as when it is snowing, sleeting or the like the current to the resistance coil 11 may be turned on, and the heated coil will suiiciently heat the area of the lens 7 to prevent condensation thereon.

In that form of the invention shown in Figures 4 and 5, there is provided a pair of spaced parallel tubes 14 extending through the lamp casing and reflector, and at their inner ends tertrolling the circuit in which is located the coil 16. .fr

Thus it will be seen that We have provided a headlight with a suitable means to prevent condensation on the lens thereof whereby the efficiency of the headlight will not be impaired during inclement weather.

Even 'though we have herein shown and described the preferred embodiment of the invention, it is to be understood that the same is susceptible of further changes, modifications and improvements coming within the scope of the d appended claims.

Having thus described our invention, what we claim as new is:

1. In a headlight, a casing, a lens in one end of the casing, a bar extending transversely of the casing rearwardly of the lens, a pair of binding posts supported on the bar in relatively spaced relation, and a resistance coil connected to the binding posts.

2. In combination, a headlight casing having :s

a lamp therein, a reflector arranged in operative position to the lamp, a pair of binding posts extending through the wall of the headlight casing and through the reflector, and a resistance wire connecting the inner ends of the binding 1 posts.

3. In combination with a headlight including a casing, a lamp mounted therein, and a reflector, and a lens at the front of the casing, of means arranged within the confines of the reector in close proximity to the lens for heating the same and preventing accumulation of snow, sleet, and the like thereon; said means consisting of a pair of spaced apart bindinCr pests located below the plane of the lamp, supporting f.

means for the binding posts, and a horizontally disposed resistance wire electrically connected at its ends with said binding posts.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2797287 *Aug 4, 1955Jun 25, 1957Prutzman Paul ERear view truck mirrors
US4584461 *Jan 19, 1983Apr 22, 1986Stanley Electric Company, Ltd.Planar heater for liquid crystal element
US7195365 *Sep 29, 2003Mar 27, 2007Mitsubishi Pencil Co., Ltd.Vehicle lamp
US7262388 *Apr 28, 2005Aug 28, 2007Illinois Tool Works IncVehicle light heater
US7914162Aug 23, 2007Mar 29, 2011Grand General Accessories ManufacturingLED light assembly having heating board
US8459848Feb 9, 2011Jun 11, 2013Truck-Lite Co., LlcHeadlamp assembly for removing water based contamination
US8899803Nov 4, 2011Dec 2, 2014Truck-Lite, Co., LlcHeadlamp assembly having a heat sink structure and wire heating element for removing water based contamination
US20040070339 *Sep 29, 2003Apr 15, 2004Mitsubishi Pencil Co., Ltd.Vehicle lamp
US20060011598 *Jul 14, 2005Jan 19, 2006Koito Manufacturing Co., Ltd.Vehicular lamp
US20060061139 *Sep 16, 2005Mar 23, 2006Koito Manufacturing Co., Ltd.Vehicle lamp and method for manufacturing vehicle lamp
US20060245202 *Apr 28, 2005Nov 2, 2006Cary MorethVehicle light heater
U.S. Classification219/220, 362/547, 219/522, 315/67
International ClassificationF21V15/00, F21S8/10
Cooperative ClassificationF21S48/335, F21S48/34, F21S48/119, F21V15/00, F21V29/008
European ClassificationF21V29/00H, F21V15/00, F21S48/33V2, F21S48/11T8, F21S48/34