Патент USA US2561152

July 17,
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|__‘ L STOFFEL
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ELECTRODE AND RESISTOR ASSEMBLY UNIT
Filed Sept. 2, 1948
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Patented July 17, 1951
2,561,151
UNITED STATES PATENT OFFICE
2,561,151
ELECTRODE AND RESISTOR ASSEMBLY
UNIT
Lester L. Stoffel, Lakewood, Ohio, assignor to The
Ohio Carbon Company, Cleveland, Ohio, a cor
poration of Ohio
Application September 2, 1948, Serial No. 47,381
1 Claim. (Cl. 315-58)
1
2
This invention relates to current limiting de
vices of the type employing a small gas ?lled
lamp having a pair of spaced electrodes and con
ductors leading from the electrodes to the ex
terior of the lamp. A resistor is generally at
tached to one of the electrodes and in series
tective transparent housing 31. The lamp con
insulating protecting sleeve 32 carrying the hous
with one of test leads to limit the current ap
with insulation l4 and 24, ?nally terminating in
ductors and the resistor are surrounded by an
ing 3|. The conductor [3 leading from the re
sistor and the conductor 2| leading from the
electrode 20 are shown as provided externally
plied to the electrodes of the lamp.
test prods l5 and ‘25 as is usual in this type of
My invention is concerned particularly with
device.
the connection from one of the electrodes of the 10
My invention provides a combined electrode
lamp to the resistor. It has heretofore been
and resistor effectively coupled together and
customary to embed two conductors in opposite
ready for the mounting of the electrode in the
ends of a carbon resistor and to attach one of
lamp. In the manufacture of the unit it is con
the conductors to a conductor leading from an
venient ?rst to weld the electrode to the con
electrode of the lamp. The connection is usu 15 ductor l2 and thereafter embed the other end
ally made by twisting together the lead from the
of the conductor in the carbon resistor simul
resistor and the lead from the electrode, but the
taneously with the embedding of the external
connection has not only involved an extra opera
conductor 13, to produce the unit shown in Figs.
tion but has been unsatisfactory from the view
1 and 2; however, if desired the welding of the
point of a lasting connection. To increase the 20 electrode to the conductor l2 may be performed
e?iciency and certainty of the connection, as
after the mounting of that conductor in the
well as reduce the expense, my invention pro
resistor.
vides a single integral continuous conductor from
I claim:
the resistor to an electrode of the lamp. I ac
A lamp having in combination a gas ?lled
complish this by embedding the free end of the 25 globe with a pair of electrodes therein extend
electrode lead in the resistor so that no inter
ing out of the globe, an insulating sleeve sur
mediate soldering or other means of joining is
rounding the projecting portions of said elec
employed.
,
trodes, a transparent housing covering said
My invention is illustrated in the drawings
globe and connected at its free end to one end
hereof and is hereinafter more fully described. 30 of said insulating sleeve, an elongated carbon
In the drawings, Fig. 1 is an elevation of my
resistor located completely within the sleeve and
electrode and resistor assembly; Fig. 2 is an en
having a pair of conductors respectively em
larged view of the unit with the resistor in sec
bedded in its opposite ends, one of said con- _
tion; Fig. 3 is an elevation partly in section of a
ductors being welded at its free end to one of
device embodying my electrode and resistor as
85 said electrodes, a connector wire welded to the
sembly.
free end of said other conductor and extending
In Figs. 1 and 2, l0 designates the electrode,
from the open end of said sleeve, another con
II the resistor, I2 the conductor between the
nector wire welded to said other electrode and
resistor and electrode and I3 the external con
extending from the free end of said sleeve and
ductor leading from the resistor. The conductor 40 adapters connected to the free ends of the con
[2 is effectively secured at one end to the elec
nectors extending from said insulating sleeve.
trode I0 by bringing the end portion of the con
ductor alongside of the electrode and welding
LESTER L. STOF‘FEL.
the two together where their ends overlap. The
opposite end of the conductor I2 is embedded in
REFERENCES CITED
the carbon resistor II. This end may be cor 45
The
following
references are of record in the
rugated or distorted to insure an effective con
?le of this patent:
nection. The other resistor conductor 13 has its
UNITED STATES PATENTS
inner end also embedded in the carbon resistor,
as shown in Fig. 2, and leads from the resistor
Number
Name
Date
50
to the line.
1,477,618
Wetmore ________ __ Dec. 18, 1923
With such an assembly unit as above described
1,778,883
Brach ___________ __ Oct. 21,1930
solder at any portion is avoided and a more
2,002,529
Dutterer ________ __ May 28, 1935
uniform and-certain connection is made.
2,305,977
Megow et al. _____ __~ Dec. 22, 1942'
Fig. 3 is an illustration of one embodiment of
my assembly in a gas ?lled lamp testing device. 55
This tester employs a gas ?lled lamp provided
with the assembly unit described together with
another electrode 20 and a conductor 21 con
nected thereto and extending to the exterior of
the lamp.
Two electrodes are mounted in a 60
glass envelope 30, exhausted of air, and charged
with gas in the usual manner.
This glass en
velope, as shown, may be surrounded by a pro
2,324,961
Stoffel __________ __ July 20, 1943
2,351,299
2,361,405
2,366,991
2,413,021
Smith __________ __ June 13,
Kopple __________ __ Oct. 31,
Wich _____________ __ Jan. 9,
Wolfson et a1 _____ __ Dec. 24,
Moorev __________ __ Sept. 28,
2,450,152
'
1944
1944
1945
1946
1948
OTHER REFERENCES
19fopular Science Magazine, pp. 192-196, Feb.
8.
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