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Patent Title: Tamper proof set screw

Assignee: IBM
Patent Number: US6209575
Issue Date: 04-03-2001
Application Number:
File Date:11-10-1998

Abstract: A device for preventing unauthorized access to a rotating shaft. More particularly, an apparatus is provided to prevent unintended and unauthorized operation of a rotating shaft by encasing a vulnerable portion of the shaft in a standard pin type lock which renders the shaft impervious to unauthorized operation. It is intended that the rotating shaft cannot be operated unless it is unlocked and a tool is applied to a portion thereof.


Link to USPTO

IBM Pledge dated 1/11/2005