US2269296A - Noncorrosive battery terminal - Google Patents

Description

Jan. 6, 194-2. H D. WEAVER 2,269,296

NONCORROS IVE BATTERY TERMINAL Filed NOV. 25', 1940 A1 /2/6756?! 2. hayer tutor/mu Patented Jan. 6, 1942 Herbert D. Weaver, San Diego, Calif.

Application November 25, 1940, Serial No. 367,127

1 Claim.

This invention relates to a non-corrosive battery terminal and it consists in the constructions, arrangements and combinations herein described and claimed.

It is a particular object of the invention to provide a battery terminal so constructed as to eliminate corrosion between a battery post and terminal of cheap construction, readily applied and removed from the post without special tools.

A further object of the invention is the provision of a terminal in which the securing means for the terminal is so located as to permit attachment to a battery post at an angle, making it possible to secure a cable to a post, regardless of the position of a battery.

It is a still further object of the invention to provide a terminal having novel means for securement to a cable without heating, melting or soldering between the cable and the terminal.

It is a still further object of the invention to provide a one-piece terminal applicable to either the positive or negative pole of a battery and in which the terminal comprises means for identifying positive or negative use of the terminal.

And finally, it is an object of the invention to provide a terminal in which a lubricant reservoir is inherent and in which the terminal includes a packing washer for retaining the lubricant in and around a battery post.

Additional objects, advantages and features of invention will be apparent from the following description considered in conjunction with the accompanying drawing, wherein Figure 1 is a vertical sectional view through my terminal applied to a battery post.

Figure 2 is a top plan view thereof.

Figure 3 is a side elevation of the terminal having a cable attached.

Figure 4 is a side elevation of a modified form, partly in section.

There is illustrated a battery terminal II] of one piece construction preferably formed from a soft metal such as lead and antimony, combined, although other metals may be employed as found practical and desirable.

The terminal I comprises a dome-shaped head II having a tapered socket I2 adapted to snugly seat a battery post I3 of the battery I4. Circumscribing the socket I2, an annular recess I5 is formed to receive a rubber or similar washer I6. Preferably this washer Will have an opening which will snugly embrace a battery terminal, for a purpose presently to be explained, and will have a height so as to project below the socket I2.

Uponthe terminal I0 there is an integral shank I 1, merging from the terminal in tapering formation to a shoulder I8 from whence the shank is continued and terminates in a cable attaching socket I9. The upper face 20 of the terminal is upwardly inclined with respect to thehorizontal axis thereof and extending from this face in a downwardly inclined direction so as to intersect and open upon the wall of the socket I2 there is a tapered bore 2| having an enlarged substantially deep entrance opening 22. A screw 23 complemental to the bore 2| is provided of a Gil length to project through the lower end of the bore 2| to engage the post I3. The base of the opening 22 is shaped to snugly seat the head 24 of the screw as shown in Figures 1 and 4. The opening 22 serves as a reservoir for grease lubricant or the like, to thereby seal the screw against air, acid, etc., and which in a liquified state may seep downwardly so as to lubricate the surfaces between the post and socket.

The socket I9 is shown as of a slightly tapering formation so as to bind upon a cable when inserted therein, although the actual securement of the cable is efiected by compressive force exteriorly of the socket. The compressive force may be applied in various ways, but in practice the bared portion of a cable is inserted in the socket frictionally, and then the socket I9 is placed in a vise and compressed so that the walls of the socket are flattened as indicated at 25 in Figures 2 and 3.

The construction illustrated in Figures 1, 2 and 3 are best suited for replacement of old terminals, since it is only necessary-to bare the cable and compress the socket to obtain a rigid connection between the cable and terminal, but

in Figure 4, there is illustrated a form which is well suited to factory assembly of the terminal and cable, since in this form, the cable may be molded directly within the socket. The only structural difference in the two forms is that the shank ll of the latter form may be made shorter.

It will be desirable to have some distinctive marking upon the terminals to indicate a positive or a negative terminal, and therefore the dome portion of the head II will include a plus or minus character, as indicated at 26.

In applying the terminal II] to a battery post, it will only be necessary to coat the socket I2 with grease or the like and apply the socket to the post I3. The washer I6 will prevent leakage of the grease, as well as protect the contacting portions of the socket and post against acids and air. The screw 23 is next screwed into engagement with the post effecting a good electrical contact since the screw is actually embedded in thereception of the post of a battery, a shank ex- 15 tended from the body and having means for reception of a cable, said shank having a face upwardly inclined in the direction of said head and having a bore inclined with respect to said socket, said bore opening upon the socket and an enlarged entrance opening adapted. for reception of a sealing compound, a screw member complemental to the bore of a length to engage and penetrate a battery post and said socket 10 having a circumscribing recess at its open end for reception of an elastic Washer, whereby to effect an air and acid tight seal with a battery post.

HERBERT D. WEAVER.

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