Abstract: A modular cable bridging assembly has a cable protector with side ramps, and a series of channels extending between its ends to receive cables or the like. End connectors enable the cable protectors to be attached together in series to any desired length. Secondary ramps can be removably attached over each side ramp of a cable protector for handicapped access. Each secondary ramp has a base extending laterally beyond the side ramp, and an upper surface extending over the side ramp having a slope that is less than that of the underlying side ramp. A secondary ramp connector is used to removably attach the secondary ramp to the cable protector. Edge rails can be removably attached to the secondary ramps for safety and structural rigidity.

Abstract: The present invention is directed to a brake shoe adapted for use in a braking mechanism that comprises a support member and a substantially metal free brake pad disposed on the support member. The brake pad may be composed of polymerized urethane as a major constituent thereof. More particularly, the brake pad may be composed of a mixture including urethane, a urethane reactant and a urethane curing agent. The durometer hardness of the brake pad may be between 80 and 95 on the A-scale. The support member may include a connector and a base plate, and the brake pad may be formed as an integral one-piece molded construction with the base plate being embedded in the brake pad. The brake pad may have a contact surface that is contoured so that the brake pad has varying thickness to differentially contact a moving surface.

Abstract: A plastic body impregnated with a friction-reducing additive especially formed for insertion into a helmet and attachment to the inside of the horizontal faceguard bars of the helmet. A specially formed insert presents an anatomically curved rear surface which reduces the ability of an opposing player to grasp the facemask. This grasp-releasing function is further facilitated by the friction-reducing additive which reduces the surface coefficient of friction on the anatomically curved rear surface of the insert.

Abstract: A hydrocyclone device having complementary upper vortex finder and lower cone units each made of hard polyurethane together with a resilient, flexible, replaceable, polyurethane liner having a positive sealing flange associated therewith. The sealing flange of the liner complements with and engages with complementary sealing surfaces on the vortex finder and the lower cone unit when they are joined together by respective threaded portions. Thus, only three elements make up the basic hydrocyclone device with greatly improved resistance to leakage thereof. An outlet opening at the bottom end of the lower cone unit can also be provided with an adjusting unit and a wear insert therewith.