Metal working – Barrier layer or semiconductor device making – Barrier layer device making
Reexamination Certificate
2005-12-27
2005-12-27
Nguyen, Ha Tran (Department: 2812)
Metal working
Barrier layer or semiconductor device making
Barrier layer device making
Reexamination Certificate
active
06979356
ABSTRACT:
An electrolytic capacitor with a polymeric housing in the form of a pocket defining a chamber, with an opening along a selected edge. The opening has opposed sides that are sealed together to provide a seam. A number of conductive layers are positioned within the chamber, and a feed-through conductor element has a first end electrically connected to the layers. An intermediate portion of the feed through passes through the seam, and an external portion extends from the housing. The housing may be vacuum formed high density polyethylene, with the feed-through contained in an elastomeric sleeve having a flattened cross section to be readily received in the seam, and to accommodate thermal expansion differences between the housing and the feedthrough. The device may be manufactured by inserting a stack of layers in the pocket, and thermally welding across the opening of the pocket on a single weld line.
REFERENCES:
patent: 2863994 (1958-12-01), Kohring
patent: 5131388 (1992-07-01), Pless et al.
patent: 5522851 (1996-06-01), Fayram
patent: 6006133 (1999-12-01), Lessar et al.
Mitchell Steven M.
Nguyen Ha Tran
Pacesetter Inc.
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