US PATENT SUBCLASS 72 / 230-- .~.~.~ By curved guide (e.g., "loop return")

US PATENT SUBCLASS 72 / 230
.~.~.~ By curved guide (e.g., "loop return")

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999 Terms of Use

72 /	HD	METAL DEFORMING

199	DF	BY USE OF ROLLER OR ROLLER-LIKE TOOL-ELEMENT {17}
226	DF	.~ Plural roller-couples (e.g., successively or optionally usable) {3}
227	DF	.~.~ With material-handling between successive couples {4}
230		.~.~.~ By curved guide (e.g., "loop return")

DEFINITION

Classification: 72/230

By curved guide (e.g., "loop return"):

(under subclass 227) Subject matter including a passive means to limit or define the path of movement of the material to a route that is continuously bending without angles, whereby the direction of movement of the work into the second-acting roller couple is different from the direction of movement of the product of the first-acting roller couple.

(1) Note. For a definition of the word "material", see (3) Note under the definition of subclass 226.

(2) Note. In the disclosures of this subclass, the successive work portions usually travel through an arc of 180 deg. extent, such that a workpiece of indeterminate length is looped, that is, one "upstream", work portion is moving in a first direction along a first path, while simultaneously another "downstream" work portion is moving in the opposite direction along a path parallel to the first path.