A coil spring for use in a cavity, such as in a groove of a pin, a housing, or both. The cavity can also be part of a seal assembly. The coil spring can have a longitudinal component positioned within the plurality of interconnected coils that runs along the spring coil axis in order to increase rigidity of the coil spring. The longitudinal component applies a load against the coil spring and/or provides restriction against the coil spring taking a shape or size different than that of the coil spring retaining groove.

A coil spring for use in a cavity, such as in a groove of a pin, a housing, or both. The cavity can also be part of a seal assembly. The coil spring can have a longitudinal component positioned within the plurality of interconnected coils that runs along the spring coil axis in order to increase rigidity of the coil spring. The longitudinal component applies a load against the coil spring and/or provides restriction against the coil spring taking a shape or size different than that of the coil spring retaining groove.

A device for absorbing and dissipating the energy of a dropped or thrown object is disclosed. The device includes a flexible planar layer (mesh layer), energy absorbing and dissipating elements (ligatures), a frame, and a void-space between the mesh layer and the supporting surface where the frame rests, for example, a floor, foundation, or wall. The mesh layer is connected to the frame by energy absorbing and dissipating ligatures. The falling or thrown weight contacts and deflects the mesh layer, causing the ligatures to elongate in tension and absorb and dissipate a portion of the kinetic energy of the weight. Also, the friction between the deforming elements of the mesh layer contributes to the kinetic energy dissipation. The remaining kinetic energy is transferred to the frame and the supporting surface. The void-space allows the falling weight in contact with the mesh layer to decelerate over a greater distance and time, thereby reducing the total dynamic force applied to the frame and the surface on which the frame rests.

A device for absorbing and dissipating the energy of a dropped or thrown object is disclosed. The device includes a flexible planar layer (mesh layer), energy absorbing and dissipating elements (ligatures), a frame, and a void-space between the mesh layer and the supporting surface where the frame rests, for example, a floor, foundation, or wall. The mesh layer is connected to the frame by energy absorbing and dissipating ligatures. The falling or thrown weight contacts and deflects the mesh layer, causing the ligatures to elongate in tension and absorb and dissipate a portion of the kinetic energy of the weight. Also, the friction between the deforming elements of the mesh layer contributes to the kinetic energy dissipation. The remaining kinetic energy is transferred to the frame and the supporting surface. The void-space allows the falling weight in contact with the mesh layer to decelerate over a greater distance and time, thereby reducing the total dynamic force applied to the frame and the surface on which the frame rests.