Abstract: A storage battery provided with a cover, having an inverted generally U-shaped cross-section, located over the top wall of the battery casing, both ends of the cover being open. The cover may be formed integrally with the casing top wall, or it may be a separate member. If a separate member, resilient straps or other retaining elements are employed to secure the cover to the battery casing, and ribs or other positioning elements carried by the cover engage the casing and space the cover from the casing top wall. Preferably, the cover is semi-cylindrical, is imperforate, and if a separate element, may be flexible.

Abstract: A protective headgear comprising a helmet and a face mask of flexible material secured to the helmet. When a force capable of causing injury to the headgear wearer is applied to the face mask, the mask deflects to a significant degree, without fracturing, with respect to the helmet. The deflection may take place entirely within the material of the face mask, or the deflection may in part take place within the attachments resiliently securing the face mask to the helmet. The intersecting bars forming the face mask have modified trapezoidal cross-sectional shapes in which each base of the trapezoid is a circular arc tangent to the sides of the trapezoid.

Abstract: A protective headgear comprising a helmet and a face mask of flexible material secured to the helmet. When a force capable of causing injury to the headgear wearer is applied to the face mask, the mask deflects to a significant degree, without fracturing, with respect to the helmet. The deflection may take place entirely within the material of the face mask, or the deflection may in part take place within the attachments resiliently securing the face mask to the helmet. The face mask is preferably fabricated of an elastomeric material.