US PATENT SUBCLASS 425 / 174.2
.~ Sonic or supersonic wave energy


Current as of: June, 1999
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425 /   HD   PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS

174  DF  MEANS APPLYING ELECTRICAL OR WAVE ENERGY DIRECTLY TO WORK {4}
174.2.~ Sonic or supersonic wave energy


DEFINITION

Classification: 425/174.2

(under subclass 174) Apparatus wherein the wave energy is specified or identifiable (e.g.., by a transducer or vibrator generating waves at a corresponding characteristic frequency or wave length) as being in the sonic (usually above 10 cycles per second) or supersonic range.

SEE OR SEARCH CLASS

156, Adhesive Bonding and Miscellaneous Chemical Manufacture,

73.1+, for processes of bonding laminae with the application of sonic or ultrasonic energy to the work.

264, Plastic and Nonmetallic Article Shaping or Treating: Processes,

442, for analogous processes.