US PATENT SUBCLASS 242 / 550
UNWINDING

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

Internet Version by PATENTEC © 1999      Terms of Use


242 /   HD   WINDING, TENSIONING, OR GUIDING

550UNWINDING {8}
551  DF  .~> With attachment to preceding material {5}
557  DF  .~> Mobile unwinding station (e.g., wheeled conveyance)
558  DF  .~> With supply coil replenishment {3}
562  DF  .~> With material end separator (e.g., doctor blade or jet) {1}
563  DF  .~> With detector, indicator, or control {2}
564  DF  .~> With drive mechanism {3}
565  DF  .~> With unwinding limit
566  DF  .~> With particular guide or guard

DEFINITION

Classification: 242/550

UNWINDING:

(under the class definition) Apparatus or method comprising an uncoiling mechanism having a support station for a supply coil of elongated material combined with one of the following: (a) attachment means to join materials from successive supply coils (e.g., to provide a continuous, uninterrupted supply of elongated material), (b) supply coil replenishing device for shifting a full supply coil or used spool relative to an unwinding station, (c) support structure for an associated backup supply coil, or (d) apparatus to separate, detect, or regulate material unwound from the supply coil.

(1) Note. A patent directed to an unwinding support station, per se, or such a support combined with a simple guide are combined with similar winding supports, spindles and spools under the heading of coil holder provided lower in this schedule.

SEE OR SEARCH THIS CLASS, SUBCLASS:

410+, for an unwinding device combined with a specified brake or other device to create or regulate tension.

531+, for reserve winding spool supports.

532.3, 532.4, and 532.7, for lead end attachment in a winding machine.

533+, for coil handling in a winding machine.

534+, for a material detector and stop in a winding machine. 570+, for a simple unwinding device such as a dispenser, spindle, or spool.

SEE OR SEARCH CLASS

52, Static Structures (e.g., Buildings), particularly

108, for a device for unwinding strand, web, or connected sections of a building component material.

83, Cutting, appropriate subclasses, particularly

78+, 302, 909, and 924 for details of a cutter for unwound or nonwound material.

118, Coating Apparatus,

229, and 235 for winding or unwinding combined with a specified coating device.

312, Supports: Cabinet Structure, especially

34.8+, for a particular cabinet structure designed to support rolled toweling and the like.