(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.
