Browse Prior Art Database

Panel Connector for Conductive Plastic

IP.com Disclosure Number: IPCOM000088491D
Original Publication Date: 1977-Jun-01
Included in the Prior Art Database: 2005-Mar-04
Document File: 2 page(s) / 39K

Publishing Venue

IBM

Related People

Cioffi, JM: AUTHOR [+4]

Abstract

The drawing shows a connector 2 for making electrical connection to a panel that is made of plastic containing conductive particles that give the panel electrical conductivity. A hole 3 is drilled in the panel to receive a bolt 4 that holds connector 2 on the panel and also holds a conductor 5 in electrical contact with connector 2.

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Panel Connector for Conductive Plastic

The drawing shows a connector 2 for making electrical connection to a panel that is made of plastic containing conductive particles that give the panel electrical conductivity. A hole 3 is drilled in the panel to receive a bolt 4 that holds connector 2 on the panel and also holds a conductor 5 in electrical contact with connector 2.

Connector 2 is formed from conventional octagonal metal stock of the type used for machining bolts and it has a rounded upper surface 6 that is similar to the conventional construction for the head of bolt 4. The lower surface of connector 2, machined with a frustoconical cutout, forms a flat surface 8 and a sloping surface 9 with a sharp outer edge 10 and with sharp points 11 at the edges of the octagonal outer surfaces.

As bolt 4 is tightened, points 11 and sharp edges 10 penetrate the surface of the panel until the flat surface 8 contacts the upper surface of the panel and prevents further penetration of the plastic by the connector. The outer surface of the panel has a dense, hard layer of resin that is typically free of conductive particles and the inner portion of the panel contains the conductive particles and is less hard and dense than the outer surface. The inner portion may be foam. It has been found that the angle of surface 9 should be about 30 Degrees with respect to the vertical edges and that the connector 2 should be hardened. A sharper angle has been found to cut through the con...