Stepped acoustic transport member
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 15, 1983
Grant Date -
N/A
app pub date -
Mar 23, 1981
filing date -
Mar 23, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An acoustic transport member for use in a keyboard having key operated strikers individually actuatable for inducing acoustic energy in the form of sound waves which propagate through the member from selected inducing positions therealong. A first portion of the member is fabricated to provide discrete impact positions for generating sound waves in response to impact actuation of related strikers. A second portion integrally connected with the first portion links all impact positions for receiving and transporting all sound waves generated by the first portion. A step joins the first with the second portions to allow communication of the sound waves from the first portion into the second portion yet thereafter provides unidirectional acoustic separation therebetween which effectively minimizes wave dispersion by substantially isolating the propagating sound waves in the second portion from coming into contact with successive impact positions of the first portion.
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Cited Art Landscape
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