USD229941S - Adjustable step-down transformer for use in electrical measuring - Google Patents

Description

United States Patent 0 ce Des. 229,941 Patented Jan. 15, 1974 229,941 ADJUSTABLE STEP-DOWN TRANSFORMER FOR USE IN ELECTRICAL MEASURING Raymond J. Feldman, Bronx, N.Y., assignor to SOS Consolidated, Inc., Birmingham, Mich.

Filed Nov, 17, 1971, Ser. No. 199,830

Term of patent 14 years Int. Cl. D10-05; D13-02 U.S. Cl. D26-1 Q Des. 229,941

PAGE 3 FIG. 7

ll b

FIG. 1 is a front view of an adjustable step-down transformer and positioning bracket for use in measuring high-amperage currents with clamp-around instrument showing my new design.

FIG. 2 is a side view thereof.

FIG. 3 is a bottom plan view thereof.

FIG. 4 is a rear view thereof.

FIG. 5 is a section of FIG. 1 taken along line 55 thereof.

FIG. 6 is a side elevation of the transformer illustrated in FIG. 7, with portions omitted for convenience of illustration.

FIG. 7 is a front view of the step-down transformer in an alternate position from that shown in FIG. 1.

FIG. 8 is a top plan view thereof.

I claim: The ornamental design for an adjustable step-down transformer for use in electrical measuring, as shown.

References Cited UNITED STATES PATENTS D. 219,273 11/1970 Shimasaki D26-1 Q D. 219,597 12/1970 Smith D26-15 2,913,689 11/1959 Enikeieif 324-127 3,649,912 3/1972 Nakamura 324-127 BERNARD ANSI-IER, Primary Examiner

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