US PATENT SUBCLASS 72 / 56
.~ By kinetic energy of fluid or field


Current as of: June, 1999
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72 /   HD   METAL DEFORMING

54  DF  BY APPLICATION OF FLUENT MEDIUM, OR ENERGY FIELD {4}
56.~ By kinetic energy of fluid or field


DEFINITION

Classification: 72/56

By kinetic energy or fluid or field:

(under subclass 54) Subject matter utilizing (a) a pressure surge or repeated pulsations of pressure in the fluent material to develop a localized, transient, or traveling force sufficient to deform work, or (b) an electric, magnetic, or radiant energy field effective to accelerate work sufficiently to accomplish deformation thereof.

(1) Note. For placement in this subclass, the combination must include means for, or method of, generating and/or releasing the energy required to produce deformation.

(2) Note. This subclass is the locus for placement of patents directed to the use of explosives or pulsating

devices to energize work-contacting fluid, or the use of a transient, high-intensity electromagnetic field for inducing accelerating currents in work; or to the application of heat for buckling or bending suitably restrained work, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

430, for explosive means to drive a tool.

453.01+, for fluid pressure means to drive a tool.