Metal working – Method of mechanical manufacture – Electrical device making
Patent
1995-11-07
1997-05-27
Echols, P. W.
Metal working
Method of mechanical manufacture
Electrical device making
156 86, 264 291, 607116, H01R 4320
Patent
active
056320850
ABSTRACT:
A method for making an electrical contact for a vitreous carbon electrodes includes the steps of making a bore in an electrode blank of a cross-linked artificial resin forming the electrode blank into an electrode body. A solid or hollow pin, or a sleeve, composed of a biocompatible, refractory metal is introduced into the bore. If a pin is to be used, the bore is made to extend only partially into the electrode body, if a sleeve is used the bore extends completely through the body. The pin or sleeve has smaller dimensions than the bore; if a pin is used it projects from one side of the electrode body and if a sleeve is used it projects from both sides of the electrode body. The electrode blank is subjected to a pyrolysis, whereby the cross-linked artificial resin is converted into vitreous carbon and the electrode body shrinks onto the pin or sleeve.
REFERENCES:
patent: 1181811 (1916-05-01), Wallace
patent: 3722005 (1973-03-01), Cowland
patent: 4609508 (1986-09-01), Edeling et al.
patent: 4773433 (1988-09-01), Richter et al.
patent: 4917760 (1990-04-01), Richter et al.
Coley Adrian L.
Echols P. W.
Pacesetter AB
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