US PATENT SUBCLASS 400 / 608.1
.~.~.~.~ Selectively engageable feed-rollers or feed-roller brakes

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

578  DF  SHEET OR WEB (E.G., RECORD-MEDIUM FEEDING MECHANISM) {13}
605  DF  .~ For feeding plural record media concurrently or selectively {4}
607  DF  .~.~ Including movement of one record-medium relative to another {7}
608  DF  .~.~.~ With clamp for holding one record-medium stationary {1}
608.1.~.~.~.~ Selectively engageable feed-rollers or feed-roller brakes

DEFINITION

Classification: 400/608.1

Selectively engageable feed-rollers or feed-roller brakes:

(under subclass 608) Subject matter wherein the sheet or web record-medium* that is to be restrained is firmly gripped by a member that is normally a feed-roller*, or wherein the

feed-roller is prevented from rotating.

(1) Note. Normally a feed-roller cooperates with a platen* so that incremental rotation of the platen causes feed of the record-medium because the feed-roller presses the record-medium against the platen. However, if the platen does not rotate and the feed-roller presses the record-medium against the stationary platen, the record-medium will also remain stationary. In this subclass the record-medium is firmly gripped between the feed-roller and the stationary platen to restrain movement of the record-medium, or the record-medium is firmly gripped between a stationary platen and a stationary feed-roller to restrain movement of the record-medium.