US PATENT SUBCLASS 72 / 237
.~ With carrier for roller-couple or tool-couple

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

199  DF  BY USE OF ROLLER OR ROLLER-LIKE TOOL-ELEMENT {17}
237.~ With carrier for roller-couple or tool-couple {9}
238  DF  .~.~> With replacement of tool {1}
240  DF  .~.~> With variation of bite of roller-couple during deformation
241.2  DF  .~.~> Including back-up for roller {4}
244  DF  .~.~> With interposer (e.g., wedge or gag) between tool and pressure applier
245  DF  .~.~> Including fluent-driven tool support
246  DF  .~.~> Including resiliently urged tool support
247  DF  .~.~> Including means to position tool along axis
248  DF  .~.~> With "screw-down" to adjust bite of tool-couple
249  DF  .~.~> With means to drive tool

DEFINITION

Classification: 72/237

With carrier for roller couple or tool couple:

(under subclass 199) Subject matter including means to hold the rollers* of a roller couple* or the roller-like tools* of a tool couple* in position to engage and deform work passing therebetween.

(1) Note. A patent claiming merely a named housing for a named roller-couple, and also claiming a guide for handling work or product will be placed as an original in subclasses 250+.

(2) Note. For the purpose of this and indented subclasses, the term "roller cluster" should be considered as equivalent to "roller couple". Thus, a carrier for, or roller of, a roller cluster should be understood to be proper for these subclasses on the same basis as similar structures of a roller couple.