US2990565A - Carpet fastener strip - Google Patents

Description

July 4, 1961 D. s. ATWOOD 2,990,565

CARPET FASTENER STRIP Filed July 28, 1959 FIG; 1

A M A" 1 A-"H LA" A -l' INV EN TOR.

Paris 6'. A zwoocl fliforney United tates Patent 2,990,565 CARPET FASTENER STRIP Doris S. Atwood, 1223 Mayfair Road, Arlington Heights, 111. Filed July 28, 1959, 'Ser. No. 830,132 2 Claims. (Cl. 16-6) This invention relates to carpet fastener strip and particularly to metal strip for holding down the edge of carpeting on floors.

It is well known that conventional carpeting requires means for maintaining the edges of the carpet in position against the wall so that the carpeting is at all times stretched out in a smooth condition. Various means for accomplishing this have been suggested. In most instances, such means involve the use of relatively complicated metal strip which cannot readily be positioned in place. Most finishing operations require at least two workmen and involve considerable time.

This invention provides a simple, metal strip material which can be manufactured cheaply in indefinite lengths. The new strip may be easily used by any person, does not require any particular skill, and functions to lock the edge of the carpet in position. The tools required are simple in the extreme and as a rule involve only the use of a hammer and screwdriver.

In order that the invention may be understood it will be explained in connection with the drawings wherein:

FIGURE 1 is a top view of a strip embodying the present invention.

FIGURE 2 is a sectional view of the new strip showing it in position.

FIGURE 3 is a sectional view.

The metal strip embodying the present invention may be made of any suitable metal such as brass, stainless steel, galvanized or leaded iron or aluminum. Aluminum is particularly desirable since it is soft and may be readily cut with shears. The new strip comprises body having rear edge 11 bent upwardly (away from the floor in the normal position of the strip) to form a flange which extends into the bottom or back face of a carpet.

Body 10 has rib 13 preferably extending upwardly from the floor in the normal position of the strip. From rib 13 the metal extends forwardly to form a series of generally triangular teeth 15 whose top face 16 is provided with serrations 17. Serrations 17 are pitched as illustrated so that the teeth may move forwardly in the space between a floor and molding, but will lock against withdrawal. Serrations 17 are relatively fine. Tip 18 of each tooth is tapered both in plan and in section to a sharp point.

The angle formed by the sides of each tooth 15 is not important and may vary within limits. In general, in order to have each tooth 15 as sharp as possible, about 60 at the tip of each tooth can be provided. With heavier gauge metal or with metal which is relatively strong, such as galvanized iron or stainless steel, teeth 15 can be blunter than shown.

As a rule, serrations 17 will be in line. Each tooth Patented July 4, 1961 '15 preferably has the base thereof at rib 13. Thus, the stifiening imparted to the construction by rib 13 will permit the teeth to be driven in underneath the molding of a wall up to rib 13.

Body 10 of the strip is provided with a plurality of barbs or spurs 20 and 21 extending upwardly from the top face of the strip. As illustrated here, barbs 20 extend along one row in the body of the strip while barbs 21 extend along another row. Barbs 21 are staggered with respect to barbs 20. Thus, as illustrated, each barb 20 is substantially in line with the tip of each tooth 15. Barb 21 is substantially in line with meeting point 22 at the base of two adjacent teeth. This arrangement tends to strengthen the entire metal strip.

Barbs 20 and 21 are formed to provide generally triangular spurs with the metal thickness and width tapering down as illustrated in FIGURE 3. Barbs 20 and 21 are long enough to bite into any carpet. As illustrated, barbs 20 and 21 are bent at an angle normally to extend upwardly and forwardly of the strip.

A strip is put into position for hammering into the space below the floor molding. The serrated faces of the teeth will engage the molding. Thus strips will be around the edge of the floor. Rib 13 will act as a stop to limit the travel of the teeth under the molding. Then the edge of the carpet will be stretched to go over the exposed part of a strip. This will be body 10 and rear edge 11. The barbs will be below the carpet.

Barbs 20 and 21 will be short enough so that the carpeting will cover them. However, they may be made quite long and hammered down into the pile or top part of the carpet after installation.

What is claimed is:

1. A carpet fastener strip comprising a flat strip of metal having one long side thereof shaped to provide coarse pointed teeth projecting in the plane of the strip, said teeth having the top surfaces thereof serrated, the serrations extending longitudinally of the strip and being so pitched that the serrations tend to lock upon withdrawal of the teeth, the strip having the remaining long side bent to form a flange, whose free edge is above the top face of said strip, a rib formed in said strip extending lengthwise thereof laterally away from the top face, said rib defining the base of the teeth and barbs on said strip extending above the top face of said strip between the flanged edge and rib for engaging carpeting disposed above the top face of said strip.

2. The construction according to claim 1 wherein said barbs are disposed in two rows along the length of the strip, the barbs in one row being disposed opposite the tips of the teeth While the barbs in the other row are disposed opposite the junction between two adjacent teeth.

References Cited in the file of this patent UNITED STATES PATENTS 665,855 Warner Jan. 8, 1901 1,847,373 Awbrey Mar. 1, 1932 2,670,494 Owens Mar. 2, 1954

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