Патент USA US2561152код для вставки
July 17, v I v |__‘ L STOFFEL _ ELECTRODE AND RESISTOR ASSEMBLY UNIT Filed Sept. 2, 1948 JNVENTOR. [.Esrur' Z . 5T0”!! ‘ha/Z“. v 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. '