US PATENT SUBCLASS 400 / 328.1
.~.~.~ Including pawl and toothed rack

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

Internet Version by PATENTEC © 1999      Terms of Use


400 /   HD   TYPEWRITING MACHINES

283  DF  CARRIAGE OR CARRIAGE-MOVING OR MOVEMENT-REGULATING MECHANISM {11}
319  DF  .~ Carriage-feed mechanism (e.g., escapement, etc.) {14}
328  DF  .~.~ By force-feed or screw mechanism (e.g., direct drive, screw-biasing carriage, etc.) {1}
328.1.~.~.~ Including pawl and toothed rack

DEFINITION

Classification: 400/328.1

Including pawl and toothed rack:

(under subclass 328) Subject matter wherein the carriage* is caused to be moved by a pawl* that engages in a notch between two teeth of a ratchet* rack, which rack is connected to the carriage to cause movement of the carriage when the pawl moves while in engagement with the rack.

(1) Note. The term "rack" as used in this definition is discussed under the definitions of pawl and ratchet in the Glossary, section III.