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US 4,372,013 AGranted
Grommet
OwnerCharlie V. Gautier, Jr.inventor
Life of this patent
Estimating the term…
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OwnerCharlie V. Gautier, Jr.inventor
Estimating the term…
A novel grommet with improved fabric-engaging retaining means. Said grommet includes a pair of like annular washers arranged at opposite surfaces of the fabric structure, about an opening therein; and a central coupling sleeve engaged through said opening and the washers and having outwardly formed washer-engaging end portions. The washers have axially inwardly disposed fabric-engaging inner surfaces defined by portions of the washers established of plastic material and have flat annular metal portions spaced axially outward from said inner surfaces. The washers next include elongate axially inwardly projecting axially inwardly convergent fabric and plastic penetrating conical projections carried by said metal portions and projecting through and inwardly from said plastic portions. The conical projections on each washer project through the fabric structure, penetrate the plastic portion of the other washer and engage the metal portion thereof. The projections on each washer are spaced circumferentially and radially throughout the major radial and circumferential extent thereof and are offset from and occur between the projections on the other washer.
A grommet comprising a pair of annular washers with flat opposing axially disposed inner surfaces engaged with axially outwardly disposed outer surfaces on a multi-laminate fabric structure and concentric with and about an opening in said structure, an elongate coupling sleeve concentric with and engaged through said opening and through said washers and having radially outwardly flared opposite end portions engaging axially outwardly disposed outside surfaces on said washers and holding said washers and fabric structure in tight assembled relationship, said washers have annular plastic inner portions engaged with said outer surfaces of the fabric structure, flat annular metal portions outward of said plastic inner portions and a plurality of circumferentially and radially spaced inwardly convergent metal projections projecting axially inwardly from the annular metal portion of each washer through the inner plastic portion thereof, through said fabric structure and penetrating the plastic portion of the other washer.
Dependencies are inferred from the claim text.