Abstract: A floor grid is provided for a trafficway for removing debris from traffic passing thereover. The grid comprises a support structure below the surface of the trafficway, a plurality of spaced tread rails defining an upper surface which is generally flush with the surface of the trafficway and being supported by the support structure, and a plurality of traverse spacer bars or channels positioned immediately beneath the tread rails. Each tread rail is secured to each spacer channel by a bolt where both cross. Each bolt has a head which is received in and is slidable, when the bolt is not tightened, along a pair of confronting slots in an associated tread rail. Each of the slots has a flat vertical surface which respectively butt against a pair of flat vertical surfaces of the bolt head preventing rotation of the bolt relative to the tread rail. Preferably the slots are just high enough to snugly receive the bolt heads. Feet extend outwardly from the lower end of each tread rail and engage the spacer channels.

Abstract: A protector member for placement on a vehicle floorboard protects the driver's heel from scuffing. The protector member has a pad with an upper convoluted surface. Relatively large peaks are surrounded by valleys. The peaks serve to remove debris, which is collected in the valleys. A barrier, located at the bottom of each valley, serves to prevent the heel from further contact with the debris. Preferably the barrier is a thin strip of film gathered in folds.

Abstract: A flexible matting for use at an entrance porch, corridor, veranda, pool-side, interior floor of automobiles, etc. This matting consists of a base on which tread bars and rows of ridges bearing piles are arranged in a definite direction with appropriate spacings between them so that the mud adhered to shoes can be removed by the piles and collected in the grooves formed between the ridges. Thus, the removal of mud from the present matting is very easy as compared with a conventional one.

Abstract: A vegetation clipping catcher for receiving clippings is herein disclosed. Which vegetation clipping catcher includes a support rail and a plurality of rings slideably mounted on the support rail. A rib is respectively connected to each of the slideable rings of the plurality. An apron is connected to the ribs. The apron has a central aperture formed therein. The central aperture is adapted for receipt of a stem of a shrub which is to be trimmed. A portion of the apron is formed into a flap immediately adjacent the central aperture. The flap is releasably connected to a closure portion of the apron.

Abstract: The present invention relates to an improved grating structure comprising carrying bars, and a plurality of ribs interlocked in said bars. Each of said ribs has holes strategically placed on their extremities such that a locking rod may be inserted through said holes so as to tie the ribs to the carrying bars. The grating structure may be further stabilized by the utilization of locking plates on the ends of the carrying bars.

Abstract: A dust control mat having a pile fabric upper surface and a bottom calendered rubber stock sheet which employs an anti-tear strip located perpendicular to the grain or calendered direction of the rubber stock sheet between the rubber sheet and a latex backing on the pile fabric. A novel method is employed to produce the mat in which the reinforcing tear strip is located in position prior to vulcanizing the rubber stock sheet in an autoclave.