US PATENT SUBCLASS 2 / 411
.~.~ Including energy-absorbing means

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

Internet Version by PATENTEC © 1999      Terms of Use


2 /   HD   APPAREL

455  DF  GUARD OR PROTECTOR {12}
410  DF  .~ For wearer's head {14}
411.~.~ Including energy-absorbing means {4}
412  DF  .~.~.~> By diverse laminae
413  DF  .~.~.~> By fluid-containing cushion
414  DF  .~.~.~> By interior pads {1}
416  DF  .~.~.~> By suspension rigging

DEFINITION

Classification: 2/411

(under subclass 410) Device provided with means on or in a helmet to cushion the impact of a force directed against the head of the wearer of said helmet.

(1) Note. This and indented subclasses are directed to "hard-hat" helmets worn in an environment where injury is apt to occur to an unprotected head. Some helmet structure of these subclasses is similar to the helmet-adjusting structure of subclasses 417+, but the primary intention in a helmet of these subclasses 411+ is energy-absorption.

SEE OR SEARCH THIS CLASS, SUBCLASS:

417+, and see (1) Note above.