Patent ID: 8671467

Claim:
A head protection system for use with an attachment to a pre-existing rigid shell constructed and arranged to be worn on a user's head, said shell having a front and a back, the system comprising: a halo housing for attachment to a bottom periphery of said shell, said halo housing having a preconfigured channel having a power bus mounted inside said preconfigured channel, said power bus being accessible to mountable peripheral devices through at least one mounting point located on said halo; a protective accessory mounting subsystem for attachment to an inside edge of said rigid shell, said mounting subsystem being for attaching removable protective accessories to said shell; wherein when said protective accessory mounting subsystem is attached to said rigid shell, said mounting subsystem comprises: a plurality of recesses located on an inside edge of said shell, each one of said plurality of recesses being configured to mate with a tab on a removable protective accessory, each one of said plurality of recesses having a protrusion for mating with a corresponding hole on said tab such that said tab, after being mated with said recess, is lockable in said recess with a fastener; and said pre-existing rigid shell is a combat helmet and said removable protective accessories physically protect said user.