Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1993-01-04
1994-07-26
Cuchlinski, Jr., William A.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 12, 277237R, 277DIG6, C16J 1532
Patent
active
053322380
ABSTRACT:
A surface acoustic wave touchscreen sealing system and method is provided. The sealing system provides a liquid impermeable seal between the touchscreen surface and touchscreen housing to protect the electronic components of the touchscreen. The sealing system includes an elongated body of resiliently compressible self-supporting foam material that is substantially transmissive to surface acoustic wave energy. The elongated body has one outer surface or face of open cell material for contacting the touchscreen surface and ensuring acoustic decoupling. The elongated body further includes at least one outer skin or membrane surface or face that is a liquid impermeable barrier and extends between the touchscreen and the housing. Compression of the elongated body against the touchscreen surface provides a liquid impermeable seal at the interface of the membrane surface portion of the body and the touchscreen.
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Preliminary IntelliTouch Systems Manual, Elographics, Inc. (Mar. 19, 1988) pp. 1 through 10, and accompanying specification (the "Elographics Manual").
Cuchlinski Jr. William A.
DePumpo Daniel G.
Restaurant Technology, Inc.
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