Printer wire for printer wire assembly, assembly and method for producing same
AssigneeGTE Products Corporation
InventorsJames R. Spencer, Harry D. Martin, Jr.
Life of this patent
Estimating the term…
Abstract
Printer wire assemblies for dot matrix printers are characterized by a copper layer on the tungsten wire extending beyond the base portion inside the pin socket, to protect the wire from the embrittling effects of brazing, by braze-forming layers on the copper layer and by a blind-hole pin socket, to enable ease of assembly and braze-bonds of uniformly adequate mechanical strength.
Claims11
A printer wire for a printer wire assembly comprising a wire having a base portion, a layer of copper alloy covering said base portion, and a braze covering at least a portion of said layer of copper alloy, said braze comprising a layer of silver and a layer of zinc or tin over said silver.
A method of forming a printer wire assembly comprising a printer wire having a base portion, means for supporting the wire defining a socket for receiving the base portion, and a braze-bond layer between the base portion of the wire and the wall of the socket, the method comprising;
- (a) forming a copper alloy layer on at least the base portion of he printer wire;
- (b) forming a braze on the copper alloy over the base portion of the printed wire, said braze comprising a layer of silver and a layer of zinc or tin over said silver;
- (c) inserting the base portion of the printer wire into the socket;
- and
- (d) brazing the base portion of the printer wire to the wall of the socket to form a printer wire assembly.
Dependencies are inferred from the claim text.