|  | B |
SECTION B — PERFORMING OPERATIONS; TRANSPORTING

SEPARATING AND MIXING

|  | B06 |
GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL

|  | B06B |
METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC OR ULTRASONIC FREQUENCY FOR PERFORMING MECHANICAL WORK IN GENERAL (for particular applications, see the relevant sub-classes, e.g. Fulltext... Hierarchy... Expanded...B07B 1/40, Fulltext... Hierarchy... Expanded...B23Q 17/12, Fulltext... Hierarchy... Expanded...B24B 31/06; measurement and analysis of mechanical vibrations Fulltext... Hierarchy... Expanded...G01H; in direction finding, locating, distance or velocity measuring Fulltext... Hierarchy... Expanded...G01S; control of mechanical vibrations in general Fulltext... Hierarchy... Expanded...G05D; sound-producing devices, e.g. bells sirens, whistles, Fulltext... Hierarchy... Expanded...G10K; generation of electrical oscillations Fulltext... Hierarchy... Expanded...H03B; electromechanical resonators in general Fulltext... Hierarchy... Expanded...H03H; electromechanical transducers Fulltext... Hierarchy... Expanded...H04R) [2]

|  | B06B 1/00 |
Methods and apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency

|  | B06B 1/02 |
· | making use of electrical energy (Fulltext... Hierarchy... Expanded...B06B 1/18, Fulltext... Hierarchy... Expanded...B06B 1/20 take precedence)

|  | B06B 1/04 |
· · | operating with electromagnetism (dynamo-electric motors with vibrating magnet, armature or coil system Fulltext... Hierarchy... Expanded...H02K 33/00)

|  | B06B 1/06 |
· · | operating with piezo-electric effect or with electrostriction (piezo-electric or electrostrictive devices per se Fulltext... Hierarchy... Expanded...H01L 41/00)

|  | B06B 1/08 |
· · | operating with magnetostriction (magnetostrictive devices per se Fulltext... Hierarchy... Expanded...H01L 41/00)

|  | B06B 1/10 |
· | making use mechanical energy (Fulltext... Hierarchy... Expanded...B06B 1/18, Fulltext... Hierarchy... Expanded...B06B 1/20 take precedence)

|  | B06B 1/12 |
· · | operating with systems involving reciprocating masses

|  | B06B 1/14 |
· · · | the masses being elastically coupled

|  | B06B 1/16 |
· · | operating with systems involving rotary unbalanced masses

|  | B06B 1/18 |
· | wherein the vibrator is actuated by pressure fluid (Fulltext... Hierarchy... Expanded...B06B 1/20 takes precedence)

|  | B06B 1/20 |
· | making use of a vibrating fluid

|  | B06B 3/00 |
Methods or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency

|  | B06B 3/02 |
· | involving a change of amplitude

|  | B06B 3/04 |
· | involving focusing or reflecting