US PATENT SUBCLASS 73 / 584
.~ By mechanical waves

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

570  DF  VIBRATION {10}
584.~ By mechanical waves {13}
585  DF  .~.~> Including ear or hearing testing
586  DF  .~.~> Reverberation
587  DF  .~.~> Acoustic emission
588  DF  .~.~> Structural bond evaluation
589  DF  .~.~> Acoustical impedance
590  DF  .~.~> In detection of a liquid reaction, a chemical reaction, or a nuclear reaction
591  DF  .~.~> Listening or sound tube
592  DF  .~.~> Fluid, fluid leak, or pipe flaw detection
593  DF  .~.~> Bearing, gear, or related moving mechanism
594  DF  .~.~> Soil or building structure
595  DF  .~.~> Frangible
596  DF  .~.~> Beamed {10}
645  DF  .~.~> Acoustic parameter {1}

DEFINITION

Classification: 73/584

By mechanical waves:

(under subclass 570) Subject matter wherein (1) the vibratory forces applied or (2) the vibrations sensed are in the form of mechanical, sonic-type waves and the frequency of the waves and the frequency of the waves is either in the sonic or ultrasonic frequency range.

(1) Note. The waves involve uniform motion of a part of a larger body, rather than motion of the whole body, in the form of particles of the body during travel of the waves in the body.

(2) Note. The sonic waves include longitudinal or compressional, shear, Raleigh waves, etc.

(3) Note. For the purposes of this section, the body being tested may include a fluid body such as air or water.

(4) Note. This subclass and subclasses indented hereunder provide for measuring and testing, employing mechanical, sonic-type waves except as specifically provided for elsewhere. See the search notes below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

1.43+, for proving or calibrating a chronometer or watch unbalance.

1.82+, for proving or calibrating an apparatus by use of vibration or by measuring vibration. 12.01+, for delivering a test impact to a body under study although the result is to be listened to.

19, for determining the gas content of materials.

24, for gas analysis by sonic means.

32, for determining specific gravity or density by sonic means.

35.09+, for determining engine knock or detonation by measuring abnormal vibration.

40.5+, for detecting leakage by listening devices.

61.41, for determining the content or effect of the constituent of a liquid mixture, as concentration of particles in the liquid, by sonic means.

170.29+, for meteorology and oceanology.

290+, for liquid level determination by sonic means.

339+, for measurement of temperature by sonic means.

432+, for measurement of particle size by sonic means. 645+, for measuring an acoustic parameter.

659, for sensing apparatus with electrically controlled indicator for spectrum analysis.

861+, for measurement of fluid flow rate by sonic means.

SEE OR SEARCH CLASS

128, Surgery,

647, and 660+ for medical diagnostic methods and apparatus utilizing ultrasonic mechanical wave energy.

181, Acoustics,

101+, for geophysical or subsurface exploration involving mechanically transmitting or receiving sound waves, subclass 123 for mechanical sound echo systems in general and subclass 125 for mechanical sound location means.

367, Communications, Electrical: Acoustic Wave Systems and Devices,

87, subclasses 7+ for producing images of the body subclasses 118+, for electrical systems using compressional waves to determine distance or direction and subclasses 14+, for electrical systems using compressional waves to investigate geologic or subsurface structure.