Lightweight vault cover

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11072904
APP PUB NO 20190271134A1
SERIAL NO

16290486

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A cover for a utility vault and a method for making such covers. The cover is formed from fiberglass reinforcement layers and a polymer mix matrix. The reinforcement layers include a bottom reinforcement layer, one or more edge reinforcement layers, and a top reinforcement layer. A first portion of the edge reinforcement layer overlaps a portion of the bottom reinforcement layer and a second portion of the edge reinforcement layer overlaps a portion of the top reinforcement layer. The reinforcement layers are formed from fiberglass fabric and may include fiberglass layers whose fibers are oriented quadraxially. The polymer mix impregnates the fabric layers and forms the bulk of the cover. The polymer matrix bonds the reinforcement layers so that forces applied across the top and bottom layers are communicated to the edge reinforcement layer. The polymer matrix includes a thermoset polymer resin and an expanded glass bead filler.

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First Claim

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Patent Owner(s)

  • HUBBELL INCORPORATED

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Angelo, Jeffrey Douglas Sweetwater, US 2 8
Chudley, Keith Alden Knoxville, US 4 10
Estes, Jason David Knoxville, US 4 10
Fagan, Lemuel David Lenoir City, US 6 10

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