Browse Prior Art Database

Wear Resistant Sensor Tip

IP.com Disclosure Number: IPCOM000068770D
Original Publication Date: 1978-Feb-01
Included in the Prior Art Database: 2005-Feb-20

Publishing Venue

IBM

Related People

Authors:
Garriss, DS Vinal, AW [+details]

Abstract

The figure illustrates a wear-resistant sapphire, ruby or other similar hard crystalline material cap applied to the tip 2 of a magnetic sensor head 1. The cap 3 may be attached by an adhesive or epoxy, and is ground to an approximately conical or spherical radius to match that of the sensor tip 2. The hardened cap 3 provides a solution to the tip wear problem encountered with hand wand magnetic scanning of magnetic stripe-bearing media. The cap 3 will be contoured with an interior ground cavity to match the exterior ground surface of the sensor tip 2.