Battery charger transformer for a portable telephone
United States Patent D350113

Nagele, Albert L. (Wilmette, IL)
Application Number:
Publication Date:
Filing Date:
Motorola, Inc. (Schaumburg, IL)
Primary Class:
Field of Search:
320/1, 320/2, 320/3, 320/4, 320/5, 320/15, 320/21, 429/99, 336/90, 336/92, 336/105, 336/107, D13/107, D13/108, D13/110
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US Patent References:
5272459Standardized and self-contained transformer battery charger assemblyDecember, 1993Geery336/92
D339563Battery chargerSeptember, 1993UsamiD13/107
D310203Battery chargerAugust, 1990Takahashi et al.D13/107
4939623Modem with improved transformer assemblyJuly, 1990Equi et al.336/92
4645995Battery charger for plural cell holding modulesFebruary, 1987Terrell et al.336/90
4636703Charging apparatusJanuary, 1987Tohya et al.429/99
4543625Method for compensating for servo delay caused at an arc or cornerSeptember, 1985RumbleD13/110
4451693Combined ballast container and wall plug for portable electrical equipmentMay, 1984Vest336/90
4389469Electrical power packs and charging devicesJune, 1983NichollsD13/110
D247619Rechargeable battery packMarch, 1978Edgell et al.D13/107

Foreign References:
JP0462988December, 1977D13/107
JP0724984February, 1988D13/107
Other References:
Transformers on p. 235 of Hong Kong Enterprise, Oct. 1989.
S/100 plug in transformer on p. 150 of Home Lighting & Accessories, Sep. 1989.
Primary Examiner:
Gandy, James M.
Assistant Examiner:
Sincavage, Joel
Attorney, Agent or Firm:
King, John J.
1. The ornamental design for a battery charger transformer for a portabletelephone, as shown and described.


FIG. 1 is a top, front and left side perspective view of the battery charger transformer for a portable telephone showing our new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a left side elevational view thereof; and,

FIG. 4 is a rear elevational view thereof.