Abstract: A facemask clip assembly includes a clip member, a movable member within the clip member, a screw, a nut, and a post member. The clip member has a base portion and a flexible arm portion bendable to lie under the base portion. The base portion includes a circular bore sized to permit the screw head to pass therethrough. The movable member, in a `secure` position obstructs the bore to a first degree such that the head of the screw is not passable therethrough, and in a `free` position permits passage of the head of the screw through the bore. The arm portion includes an opening which is alignable with the bore of the base portion when the arm portion is bent under the first portion. The screw shaft is extendable through the bore and the opening, and the nut threadably mates with the screw shaft to secure the base and arm portions of the clip member together. In assembling a facemask to a helmet, the clip member, with movable member in the `secure` position, is bent about a portion of the facemask.

Abstract: A knee orthosis incorporates first and second elongated rigid members attachable to the sides of upper and lower leg extents; together with means pivotally coupling the members proximate the knee location, and inter-meshed gear parts respectively carried by the members to relatively rotate as either of the rigid members pivots. Multiple adjustable attachment straps are also provided, two of the straps extending in criss-cross relations behind the knee.