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A non-corrosive bore hole cover apparatus for plugging a hole bored in a substrate is provided comprising a top plate molded from a non-metallic material, a bottom plate molded from a non-metallic material, a compressible ring gasket sandwiched between the top and bottom plates, and a threaded bolt.

A non-corrosive bore hole cover apparatus for plugging a hole bored in a substrate is provided comprising a top plate molded from a non-metallic material, a bottom plate molded from a non-metallic material, a compressible ring gasket sandwiched between the top and bottom plates, and a threaded bolt. A bottom side of the top plate and a top side of the bottom plate each have an annular gasket locating ridge formed thereon. The compressible ring gasket is sandwiched between the top plate and the bottom plate such that the gasket locating ridges are inserted in either end of the compressible ring gasket. The threaded bolt passes through a top plate hole such that a head of the bolt is retained against a top side of the top plate and a tail end of the bolt is threaded through a hole of the bottom plate. The bolt is rotated into the threaded hole to draw the top and bottom plates together to compress and circumferentially expand the gasket. The threads of the bottom plate are preferably provided by a winged t-nut insert. Reinforcement rib members are preferably provided on the top and bottom plates. The top plate preferably has a convex configuration. The gasket preferably has a plurality of longitudinal reinforcement ribs. The top side of the bottom plate preferably has a tapered bolt locating ridge formed about the bottom plate hole. The color of the top plate preferably matches the color of the surface of the substrate.

대표청구항 ▼

1. A non-corrosive bore hole cover apparatus for plugging a hole bored in a substrate comprising:a top plate molded from a non-metallic material, said top plate having a hole therethrough, a bottom side of said top plate having an annular gasket locating ridge formed thereon; a bottom plate molded f

1. A non-corrosive bore hole cover apparatus for plugging a hole bored in a substrate comprising:a top plate molded from a non-metallic material, said top plate having a hole therethrough, a bottom side of said top plate having an annular gasket locating ridge formed thereon; a bottom plate molded from a non-metallic material, said bottom plate having a threaded hole therein, a top side of said bottom plate having an annular gasket locating ridge formed thereon; said gasket locating ridges being of substantially equal outer diameter; a compressible ring gasket having an elongated wall, said compressible ring gasket having an inner diameter sized to tightly encircle said outer diameter of said gasket locating ridges, said compressible ring gasket sandwiched between said top plate and said bottom plate such that said gasket locating ridges are inserted in either end of said compressible ring gasket; and a threaded bolt passing through said top plate hole such that a head of said bolt is retained against a top side of said tcp plate, a lower end of said bolt threaded through said hole of said bottom plate, whereby said bolt may be selectively rotated into said threaded hole to draw said top and bottom plate toward one another to thereby compress and circumferentially expand said ring gasket, said gasket locating ridges maintaining alignment of said compressible ring gasket and said top and bottom plates during compression to thereby achieve substantially uniform compression against said bore hole, further comprising said bottom side of said top plate having a plurality of reinforcement rib members formed thereon, said reinforcement rib members radiating outward about said top plate hole, said rib members providing reinforcement for said top plate, said top plate compression gasket locating ridge surrounding said plurality of reinforcing ribs which join said gasket locating ridge, whereby said reinforcing ribs and said gasket locating ridge extend substantially the same distance from the bottom of said top plate.