US PATENT SUBCLASS 53 / 370.7
.~.~ With means to heat or cool seam

Current as of: June, 1999
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53 /   HD   PACKAGE MAKING

285  DF  CLOSING PACKAGES AND FILLED RECEPTACLES {7}
370.2  DF  .~ Including provision for pleat of cover overhang {7}
370.7.~.~ With means to heat or cool seam {5}
370.8  DF  .~.~.~> Spaced from cover during heating or cooling {1}
371.2  DF  .~.~.~> Having nonplanar sealing surface
371.3  DF  .~.~.~> With means to advance package during closing {3}
371.8  DF  .~.~.~> With package stationary during closing {2}
372.3  DF  .~.~.~> Means to cool seam

DEFINITION

Classification: 53/370.7

With means to heat or cool seam:

(under subclass 370.2) Apparatus in which means is provided to apply or remove thermal energy from engaging surfaces of the cover.

SEE OR SEARCH THIS CLASS, SUBCLASS:

373, for apparatus having means to apply or remove heat from an outturned seam without a pleat, and see the notes thereto for heat sealing elsewhere classified.

479, for a method of closing a preformed nonfreestanding container by heat sealing.

SEE OR SEARCH CLASS

219, Electric Heating, for heating by electrical resistance, especially

59.1+, and 78.16, respectively, for heating a metal tube by the use of electrically generated heat, and subclasses 603+ for inductive heating of metal tubes.