The footwear-cleaning device is a device that is adapted to clean footwear via the use of a compressed air source and/or a pressurized water source. The footwear-cleaning device is an accessory that is attached downstream of or integrated into an air or water supply. The footwear-cleaning device has at least one stationary brush that protrudes perpendicular from the base of the accessory unit. A manually operated on/off valve regulates the passing of either compressed air or water under pressure into at least one tubular hose, which feeds into at least one stationary brush. The at least one stationary brush is attached to the base of the unit. The manually operated on/off valve is engaged and disengaged via a removable handle that is positioned perpendicular to the base of the unit as it sits on the ground.

Compound structure made of composite material, such as fiber-reinforced polymer resin, comprising first oblong elements reciprocally distanced and parallel to each other and second oblong elements reciprocally distanced, parallel to each other and crisscrossed with respect to the first oblong elements. The first oblong elements and the second oblong elements are made in a single body to define a reticular structure with a monolithic flat shape

Compound structure made of composite material, such as fiber-reinforced polymer resin, comprising first oblong elements reciprocally distanced and parallel to each other and second oblong elements reciprocally distanced, parallel to each other and crisscrossed with respect to the first oblong elements. The first oblong elements and the second oblong elements are made in a single body to define a reticular structure with a monolithic flat shape

A prong is configured for use with a concrete reinforcement element and includes first and second legs positioned opposite first and second sides of the prong and a bridge portion connecting distal ends the legs, where the bridge portion forms a first end of the prong. The legs extend from the bridge portion to a second end of the prong opposite the first end, and each of the legs has a proximal end at the second end of the prong. The proximal end of the first leg is bent toward the second leg, and the proximal end of the second leg is bent toward the first leg, such that the proximal ends of the legs overlap each other. Inner surfaces of the proximal ends of the legs define engagement surfaces configured to engage a tie wire, enabling the proximal ends to be connected to the tie wire.

A stair system with freedom of movement between landings associated therewith includes a connection system configured to connect stairs to a landing associated with a construction, wherein the connection system structurally supports the stairs for safe egress over the stairs while concurrently supporting movement between the landing and a second landing associated with the construction by the stairs in at least one dimension, and wherein the movement supports inter-story drift between the landing and the second landing and removes some force translation between the landing and the second landing.

A stair system according to one illustrative embodiment comprises: a support body mountable in a wall and comprising a connecting region; a stair body; and a mounting apparatus. The mounting apparatus comprises: a connector connectable to the connecting region of the support body in any one of a plurality of different positions in the connecting region of the support body; and a holder configured to hold the stair body such that when the connector is connected to the connecting region of the support body, the stair body is spaced apart from the support body to permit a wall panel between the stair body and the support body. Wall assemblies comprising such stair systems are also disclosed.

An attachment device for attachment to a pathway comprising a body having: a top surface for receiving foot traffic thereon; at least one point of flexure; and at least one arm extending from the point of flexure with the arm moveable about the point of flexure, the at least one arm configured to engage the pathway or a structural member of the pathway, wherein when engaged, the at least one arm secures the device to the pathway, wherein engagement of the at least one arm results in the device being compressively secured to the pathway in between two component members of the pathway.