US PATENT SUBCLASS 220 / 639
SEPARATE REINFORCING ELEMENT

Current as of: June, 1999
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220 /   HD   RECEPTACLES

639SEPARATE REINFORCING ELEMENT {4}
640  DF  .~> Open end edge reinforcing means {3}
645  DF  .~> Molded container with embedded reinforcing element
646  DF  .~> Externally attached sidewall reinforcing element {3}
651  DF  .~> Internally attached reinforcing element {3}

DEFINITION

Classification: 220/639

SEPARATE REINFORCING ELEMENT:

(under the class definition) Receptacle including an element which is either: (1) attached to an end wall or sidewall or (2) extends between walls; and is intended to strengthen the container wall structure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

592, for a high-pressure-gas tank having a separate reinforcing element.

608+, for contoured (reinforcing) end wall structure in a one-piece container.

623+, for contoured (reinforcing) end wall structure in a container which is not of one-piece construction.

669+, for contoured (reinforcing) sidewall structure.