Electricity: conductors and insulators – Boxes and housings – Hermetic sealed envelope type
Reexamination Certificate
2000-05-09
2001-10-09
Reichard, Dean A. (Department: 2831)
Electricity: conductors and insulators
Boxes and housings
Hermetic sealed envelope type
C361S809000, C361S811000
Reexamination Certificate
active
06300564
ABSTRACT:
TECHNICAL FIELD
This invention relates to control boxes for electrical appliances and, more specifically, to internal structure within the control box which allows the mounting different sized capacitors therein.
BACKGROUND ART
Most electrical appliances are provided with self-contained electrical control boxes. Such control boxes typically include control switches such as on/off switches, function switches, thermostats, etc. Power cords for such appliances usually pass into the control box where internal electrical wiring receives and distributes electrical power to various power utilizing components of the appliance. Some appliances, such as room air conditioner units, have more than one electric motor associated therewith, specifically a fan motor and a compressor motor. Such motors typically require capacitors, for starting and/or during normal running operation. Metal clad electrolytic capacitors are available, which may serve more than one motor.
Since such capacitors are intimately involved in the electrical wiring of the control components, it is desirable to mount such capacitors within the control box and, accordingly, the necessary fasteners and ground structure are provided in the control box to properly secure such capacitors. It is also common practice to utilize a common control box for different appliances having different electrical requirement and, accordingly, requiring capacitors of varying sizes. Accordingly, it is deemed desirable to provide for a molded plastic control box having an integrally molded capability for mounting capacitors of different sizes and for providing external ground connections through the control box to such capacitors.
DISCLOSURE OF THE INVENTION
Apparatus for alternatively mounting either a large cylindrical capacitor having a given length and a given diameter or a small cylindrical capacitor having a given length and a given diameter. The apparatus includes a substantially planar support wall having two or more substantially U-shaped support walls extending substantially perpendicularly therefrom. The U-shaped support walls are parallel to one another and are spaced from one another by a distance such that at least two of the U-shaped walls will span the given length of either of the capacitors. Each of the two or more U-shaped walls defines an upwardly facing capacitor support surface. Each of the support surfaces has a lower arcuate section extending between left and right end points. The lower arcuate sections have an effective diameter, which is substantially equal to the given diameter of the small capacitor. Each of the support surfaces has two upper arcuate support sections, one of each of the upper sections extends from each of the left and right end points of the lower arcuate support section. Each of the upper arcuate sections has an effective diameter substantially equal to the diameter of the large capacitor.
REFERENCES:
patent: 3943412 (1976-03-01), Wickstrom
patent: 4153310 (1979-05-01), Loving et al.
patent: 5049703 (1991-09-01), Simon
patent: 5532435 (1996-07-01), Bolton et al.
patent: 6163460 (2000-12-01), Baur et al.
patent: 57016546 (1982-01-01), None
patent: 57020138 (1982-02-01), None
patent: 05234802 (1993-09-01), None
Barros Daniel Alessandro Oliveira de
Correa Juan Carlos Carne
da Luz Moraes Luciano
Carrier Corporation
Ngo Hung V
Reichard Dean A.
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