Browse Prior Art Database

Watertight External Contact

IP.com Disclosure Number: IPCOM000113639D
Original Publication Date: 1994-Sep-01
Included in the Prior Art Database: 2005-Mar-27
Document File: 2 page(s) / 39K

Publishing Venue

IBM

Related People

Tout Jr, JJ: AUTHOR

Abstract

Disclosed is a contact providing electrical continuity through a wall of an insulating housing while retaining watertight properties of the housing.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Watertight External Contact

      Disclosed is a contact providing electrical continuity through
a wall of an insulating housing while retaining watertight properties
of the housing.

      The Figure is an exploded isometric view of a contact 10, a
wall 12 of an insulating housing composed, for example, of a
thermoplastic material, and a wire lead 14 which is attached to the
contact 10.  The contact 10, which may, for example, be cast from a
copper-based material, includes an exterior section 16 and a tubular
post 18.  An edge 20 of exterior section is rounded to facilitate the
repeated engagement and disengagement between a cantilever electrical
contact spring (not shown) and a smooth, plated exterior contact
surface 22.

      Before contact 10 is attached to housing wall 12, wire lead 14
is soldered in place, within the hole 24 of tubular post 18.  Then
contact 10 is assembled to housing wall 12 by pressing by pressing
tubular post 18 into a hole 26 extending through wall 12.  A tight
fit between post 10 and hole 26 provides a watertight, sealed
attachment between contact 10 and housing wall 12, with the
cylindrical shape of post 10 uniformly displacing the material of the
housing wall.  A small, optional lip 28 may extend around the tip of
post 10 to increase the force required to remove contact 10 from
housing wall 12.