US PATENT SUBCLASS 414 / 795.4
.~ Unstacking apparatus

Current as of: June, 1999
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414 /   HD   MATERIAL OR ARTICLE HANDLING

788  DF  APPARATUS FOR MOVING INTERSUPPORTING ARTICLES INTO, WITHIN, OR FROM FREESTANDING, ORDERLY LAYERED, OR MUTUALLY STABILIZING ORDERLY GROUP {4}
795.4.~ Unstacking apparatus {10}
795.5  DF  .~.~> Utilizes fluid blast to remove article
795.6  DF  .~.~> Unstacking tapered or nestable articles
795.7  DF  .~.~> With means vertically aligning stack
795.8  DF  .~.~> With means replacing depleted stack
795.9  DF  .~.~> Removes complete tier from multitier stack
796  DF  .~.~> Separates stack into smaller stacks {1}
796.2  DF  .~.~> Removes layer as unit {1}
796.4  DF  .~.~> With means for reorienting article after unstacking
796.5  DF  .~.~> Removes highest article first from stack {5}
797.4  DF  .~.~> Removes lowest article first from stack {6}

DEFINITION

Classification: 414/795.4

Unstacking apparatus:

(under subclass 788) Apparatus which reduces the size or height of a stack* by taking one or more articles from above or below another article in the stack*.

(1) Note. Apparatus which first tilts a stack* or tier* as a unit to "construct" a horizontally extending series and then removes articles from the series is considered proper for this and the indented subclasses, since the articles are removed from an assemblage and do intersupport each other for a portion of the time they are together. The mere tilting of a stack* into a horizontally extending series is not considered proper for this area and is found in 414-754+, since the assemblage is only reoriented and not demolished by the removal of articles therefrom.

SEE OR SEARCH THIS CLASS, SUBCLASS:

788.8, for a apparatus which both stacks and unstacks articles.

SEE OR SEARCH CLASS

221, Article Dispensing, appropriate subclasses for various means for dispensing articles from a stack.

271, Sheet Feeding or Delivering,

280, for separating a sheet from a moving assemblage of sheets.