US2240596A - Illuminated screw driver - Google Patents

Description

J. V. WHITE ET AL ILLUMINATED SCREW DRIVER May 6, 1941.

Filed July 25, 1939 AT TOR EY.

Patented May 6, 1941 ILLUMINATED SCREW DRIVER John V. White and Edward J. Bitter, Niles, Ohio; said Bitter assignor to said White Application July 25, 1939, Serial No. 286,351

(Ci. 240-6A6) 2 Claims.

This invention relates to a screw driver and,

more particularly, to a screw driver provided with illuminating means situated in the handle portion thereof. 4

The principal object of this invention is the provision of an illuminated screw driver, the various parts of which are inexpensive in manufacture and simple in construction.

A further object of this invention is the provision of an illuminated screw driver, thehandle portion of which is corrugated so as to provide a better gripping surface andlat the same time to provide for a smaller inner diameter suitable for holding a standard size battery in proper position.

A still further object of the invention is the provision of an illuminated screw driver which may be readily disassembled so that the illumination means may be inspected and replaced when necessary.

A still further object of the invention is the provision of an illuminated screw driver adapted to use a preiocused bulb and formed so that the light rays reach the tip of the screw driver with a minimum of shadow.

The illuminated screw driver shown and described herein has been designed to form an inexpensive yet practical illuminated tool that may be conveniently used for tasks wherein the use of an illuminated tool is indicated. The screw driver is formed of a few easily fabricated parts thus serving to make its manufacturing costs very low and permit it to be distributed to the public at very low cost in comparison with other tools of this type.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, can be made within the scope of what is claimed without departing from the spirit of the invention.

The invention is illustrated in the accompanying drawing, wherein:

Figure 1 is a cross-sectional elevation of the illuminated screw driver.

Figure 2 is a cross-sectional view taken on lines 2-4 of Figure 1.

Figure 3 is a detail view of the socket portion of the illuminated screw driver shown in Figure 1.

Figure 4 is a detail view, with parts broken away, showing a shank and reinforcing ring porend of the tubular housing I.

tion of the illuminated screw driver shown in Figure 1.

By referring to the drawing and Figure 1 in particular, it will be seen that the illuminated screw driver comprises a tubular housing i which is provided with a plurality of corrugations, the inner surface of which form axially extending ridges 3, which serve to form a smaller inner diameter suitable to receive a standard flashlight battery 4.

' Still referring to Figure 1, it will be seen that a reinforcing ring 5 has been positioned within the upper end of the tubular housing I and that a shank 6 has been aflixed to this reinforcing ring 5 (see Figure 4) preferably by spot welding, the shank portion 6 extending downwardly between 2. pair of the corrugations where it is preferably spot welded to the tubular housing I. The shank 6 extends outwardly from the tubular housing I and has been shaped so that its outermost end I is approximately on an axial center line of the said tubular housing. This outermost end I of the shank 6 has a conventional tip 8 formed thereon. 1

By referring to Figures 1 and 3, it will be seen that a socket 9 having a threaded opening in therein is suitable for receiving a bulb which is positioned within the tubular housing just below the reinforcing ring 5. This socket 9 is held in position by means of a coil spring I2 which in turn rests against the battery 4 and establishes a definite distance between the socket 8 and the battery 4 so that the bulb may be. turned on or oil by screwing it in or out of the socket 8 thus making or breaking its contact with the upper terminal of the battery 4. In order that this assembly of parts may be held in operating position, a flanged cap I3 is provided at the lower It is so formed that a plurality of crimped flanges l4 thereon slidably engage the inner surface of the tubular housing i and engage crimped portions I! there in. It is obvious that the flanged cap I3 must be formed to correspond with the inner shape of the tubular housing so as to provide for the clearance of the corrugated sections 2. It will be seen that portions of the cap i3 rest against the bottom ends of the corrugations 2 so that any pressure brought against the cap is carried on the housing I. The center of this flanged cap i3 is preferably bowed so as to provide electrical contact with the bottom of the battery 4.

What we claim is:

1. An illuminated screw driver comprising a handle formed of a section of corrugated tubular material, a metallic shank rigidly secured in the forward end of the handle at one side thereof by means of a reinforcing ring aflixed thereto and positioned within the forward end of the said handle portion, the inner end of the said shank 0 provided with a plurality of axially extending corrugations, a metallic shank rigidly secured in the forward end thereof, at one side thereof, by means of a reinforcing ring affixed thereto and to the inner surface of the said tubular material, the outermost end of the said shank terminating on an axially extending center line in relation to the said handle and shaped into a screw driving blade, a bulb and socket assembly positioned within the forward end of the said handle and retained by meansof the said reinforcing ring and a battery positioned therebehind within the said handle together with a cap adapted to close the opposite end of the said handle. V

JOHN V. WHITE. EDWARD J. RITTER.

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