System and method for level control of an encapsulant for...

Details System and method for level control of an encapsulant for... System and method for level control of an encapsulant for...

2007-04-17

2007-04-17

Thomas, Eric W. (Department: 2831)

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

C361S301300, C029S025420

Reexamination Certificate

active

11073751

ABSTRACT:
A self protected fluid filled capacitor that includes a capacitor section. Preferably, the capacitor section is configured to attach to a cover that can be placed on a capacitor housing. The capacitor contains an insulating fluid that surrounds the capacitor section when the capacitor section is inserted in the capacitor. A capacitor chamber that is configured to contain a retained portion of the insulating fluid and the capacitor section is also included. Also contained in the capacitor is an overflow chamber region in communication with the capacitor chamber. The capacitor chamber is configured to provide a capacitor chamber opening near a top portion, through which excess fluid contained in the capacitor chamber can flow. The overflow chamber region communicates with the capacitor chamber opening to receive excess insulating fluid, thereby providing a fluid volume margin to assure that the capacitor section is completely covered.

REFERENCES:
patent: 4240126 (1980-12-01), Sanvito
patent: 4317158 (1982-02-01), Dequasie
patent: 5581437 (1996-12-01), Sebillotte et al.
patent: 6313978 (2001-11-01), Stockman et al.
patent: 2005/0047058 (2005-03-01), Lobo et al.
Hudis et al., “Motor-Run Capacitors,” Appliance Manufacturer, Oct. 1994.
Martin Hudis, “Technology Evolution in Metallized Polymeric Film Capacitors Over the Past 10 Years,” presented at CARTS Symposium in Nice, France, Oct. 1996.
Martin Hudis, “Plastic Case Self-Protected Liquid Filled AC Capacitors for 70-degree Celsius Applications,” presented at CAPTECH in Bangladore, India, Mar. 1997.

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