05729250 is referenced by 146 patents and cites 9 patents.

A front cover assembly is provided for use with a touch sensitive display device. The touch sensitive display device includes a display such as a Cathode Ray Tube (CRT) or Liquid Crystal Display (LCD). The front cover assembly has a top cover, an infrared bezel and a piece of glass. The top cover is inserted into a mold along with the piece of glass. The top cover and glass are then held in place by a vacuum while polyurethane is injected to fill the void between the glass and the top cover and the mold. The polyurethane is injected using injection molding techniques. The polyurethane used must have the properties of flexibility, durability and must also be transparent to infrared light. The polyurethane provides a mechanical lock around the glass and top cover and thus the polyurethane compensates for the different rates of expansion and contraction of the glass and the top cover due to temperature variations in the ambient environment. The polyurethane provides a mechanical lock that prevents liquids from seeping or entering from the top portion of the front cover assembly protecting the touch sensitive display device.

Title
Front cover assembly for a touch sensitive device
Application Number
8/437008
Publication Number
5729250
Application Date
May 8, 1995
Publication Date
March 17, 1998
Inventor
Mark Gehres McDonald
Clayton
NC, US
Dennis Crompton
Apex
NC, US
Aaron Roger Cox
Raleigh
NC, US
Alfred William Connor
Raleigh
NC, US
Edward H Bishop
Durham
NC, US
Agent
Joseph C Redmond Jr
John D Flynn
Assignee
International Business Machines Corporation
NY, US
IPC
G09G 5/00
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