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Патент USA US3089233

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May 14, 1963
w. c. WALKER
Filed Aug. 24, 1959
United States Patent O "
Willie Charles Walker, 532 12th Ave, Tuscaloosa, Ala.
Filed Aug. 24, 1959, Ser. No. 835,516
1 Claim. (Cl. 29-15555)
This invention relates to the joining and splicing of
Patented May 14, 1963
“fraying” before installing connector. To “re-open a
joint, apply heat to connector and move coil beyond
break. To close: reheat and move back, additional
solder or flux being unnecessary.
In some cases it might be desirable to use pliers in
clamping my connector on a wire before soldering. How
ever this has the added disadvantage of making the joint
more di?icult to disconnect should the need arise.
Since my invention is nothing more than a coil of
wires by means of a solder connector, and in particular
to its use in the repair and maintenance of radio, TV, 10 tinned (solder coated) wire closely surrounding a wire,
it provides an usually large area of contact resulting in
and electronic devices. Through its use you can quickly
an electrical connection that is ‘good and strong both
clip a wire, test a suspected part and reconnect, all in
mechanically and electrically. As it is so small and in
a minimum of time. The resulting joint requires little
conspicuous it requires only the very least amount of
heat and can very easily be re-opened and closed at will.
Although the modern technician has at his disposal a 15 heat (smallest of soldering irons) thus lending itself ad
mirably to all electronic work. The fact that the joint
battery of professional instruments such as vacuum tube
can be reopened or closed any reasonable number of
voltrneters, “incircuit” condenser testers, grid dip oscil
times with only the addition of heat is a distinct advan
lators, etc. that help immeasurably in his work, the best
way to test a component part still remains to disconnect
Having thus described my invention, I claim:
it from the circuit. But to unsolder a lead where two (2) 20
The method of using an improved solder connector
or more wires go to the same lug is not always an easy
of solid tinned bendable wire having a helical wound
task. Compactness and miniaturization make it still
coil of uniform diameter with spaced turns and a free
worse; besides strain and excessive heat can damage in
sulation and the parts themselves. This is especially true
of the new transistors and printed circuits which re
quire extreme care in soldering.
It is with all this in mind that I devised my own solder
connector to overcome these difficulties.
end, designated as a “pig-tail,” which continues outward
25 ly from one endmost turn and terminates in an eye, for
joining and splicing a wire by soldering the coil over the
break in the wire, and embracing the selection of a short
connector requiring minimal heat both in soldering on
and thence moving along a wire, comprising the follow
Fashioned from a continuous piece of wire, it is what
ing steps: ?rst, the correct selection of coil connector for
you might refer to as an improved connector. Said
the wire to be joined having a minimum number of turns,
connector being a helix or coil of tinned (solder coated)
thence the steps of inserting and positioning of this con
wire, the free end of which continues outwardly, and
nector directly over the break in said wire using the “pig
?nally terminating in an eye. This free end, or “pig
tail” as a handle including the twisting and wrapping of
tail” as they are called, aids in the picking up, handling,
“pig-tail” about the most convenient point, followed
and positioning on the wires to be connected. After
by the soldering of said connector on said wire, and
soldering it is clipped off.
?nally, the steps of clipping and removing of said “pig
To remind the serviceman, a preferred embodiment
tail” at a point near the coil so the tiny extension left
of the invention would be to paint the pig tail yellow or
thereon can be contacted easily, and grippingly if desired,
some other bright color. Sometimes, if inconvenient for
the operator to wrap or twist the “pig-tail,” he might use 40 in the event this connection had to be re-opened.
a small piece of “Scotch tape” to hold it in position.
References Cited in the ?le of this patent
The use of the invention is self explanatory.
FIG. 1 shows an enlarged view of my connector 5
positioned on wire 6-—6 to be joined. INote part 5 in
Waring ______________ __ Mar. 4, 1884
4. 01
cludes helix 7, and “pig-tail” 8 with eye 9.
Blomstrand __________ __ Oct. 20, 1953
FIG. 2 shows lead of suspected capacitor 10 cut.
Siegrist et al. _________ __ Jan. 5, 1954
FIG. 3 shows the connector installed.
FIG. 4. Is is soldered and snipped off.
The connector can be made with two or more turns, in
various gages of wire, and for use on all size wires.
If wires to be joined do not meet, simply use a con
nector with more turns or spread open the coil at its
center with two v(2) knife edges. On stranded wire it is
desirable to tin the ends, or a section thereof, to prevent
Great Britain _________ __ Aug. 30, 1923
Publication 1, “Field-Shop Service Notes,” published in
Service, February 1958 (page 34 relied on).
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