Abstract: A fall protection device for an opening in a roof includes at least one rail section having a vertical member. The vertical member is preferably in the form of a metal tube having an open lower end. A bearing foot has a connecting portion and a bearing portion and is secured to the lower end of the vertical member by the connecting portion so that the bearing portion supports the vertical member above the roof. The connecting portion of the bearing foot preferably extends into the open lower end of the tube and resiliently engages an interior surface of the tube to secure the bearing foot thereto. A hardness of the bearing portion is greater than a hardness of the connecting portion. The connecting portion and the bearing portion are preferably plastic and co-molded so that the bearing foot is of unitary construction.

Abstract: The present invention comprises a gutter channel for bowling alleys. In particular, the present invention comprises a bowling alley gutter having a symmetric cross-section. The symmetric cross-section leads to both left and right gutters being identical, eliminating the possibility of misinstalled gutters. The bowling alley gutter of the present invention comprises a structure having a shape similar to a segment of a cylinder subtending an arc of approximately 117 degrees with a circular radius of approximately 5.625 inches. At the terminating ends of such circular arc, acute angular bends, approximately 29 degrees and 0.375 inches in length, directed away from the center of said cylinder, have been placed. Metal having a vinyl coating securely laminated thereto is a convenient material for the gutter of the present invention. The present invention also relates to a design for mounting clips for such a bowling alley gutter allowing particularly efficient installation and replacement.