Electricity: conductors and insulators – Conduits – cables or conductors – Insulated
Reexamination Certificate
2000-03-17
2001-11-13
Nguyen, Chau N. (Department: 2831)
Electricity: conductors and insulators
Conduits, cables or conductors
Insulated
Reexamination Certificate
active
06316730
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention is directed to a current transmission element. In particular, the invention relates to a current transmission element for capacitor windings having flame-sprayed contact layers also known as schoopage layers.
2. Description of the Related Art
Generally contact current transmissions are known in applications involving capacitor windings having flame-sprayed contact layers (schoopage layers).
U.S. Pat. No. 3,593,072 incorperated herein by reference discloses a capacitor winding with a schoopage layer that is connected to a mesh screen of copper with the assistance of a soldered connection.
SUMMARY OF THE INVENTION
An object of the present invention is to specify a current transmission element that need not be soldered to the contact layers.
This object is inventively achieved with a current transmission element for capacitor windings having flame-sprayed contact layers or schoopage layers including a knit metal mesh having tin-plated wires that is provided as a pressure contact current transmission.
In another embodiment of the invention, a current transmission element includes a woven metal fabric, also known as mats, having additional tin-plating that is provided for pressure contact current transmission.
Advantageouly,the invention replaces the standard soldering of contacts by a pressure contact current transmission with the assistance of a metal mesh or metal fabric with the participation of tin.
REFERENCES:
patent: 2539332 (1951-01-01), Schneider
patent: 3593072 (1971-07-01), Bailey
patent: 5028742 (1991-07-01), Redman
patent: 5305941 (1994-04-01), Kent et al.
patent: 5386345 (1995-01-01), Matsuzaki et al.
patent: 3330538 A1 (1985-03-01), None
patent: 3909677 A1 (1990-09-01), None
patent: 0707321 A2 (1996-04-01), None
EPCOS Aktiengesellschaft
Nguyen Chau N.
Schiff & Hardin & Waite
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