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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12729501 B1

PDFFull Text
Date of Patent:
Sep. 08, 2026

Filed:

Dec. 20, 2023

Lightweight molded covers and plates

Applicant:

Hubbell Incorporated, Shelton, CT (US);

Inventors:

Lemuel David Fagan, Lenoir City, TN (US);

Keith Alden Chudley, Knoxville, TN (US);

Ernest Stephen Forsten, Fleming Island, FL (US);

Jason David Estes, Knoxville, TN (US);

Assignee:

Hubbell Incorporated, Shelton, CT (US);

Attorney:

Wissing Miller LLP

Primary Examiner:

Atul P Khare

Int. Cl.
CPC ...
B29C 70/28 (2006.01); B29C 70/48 (2006.01); B29C 70/54 (2006.01); B32B 3/08 (2006.01); B32B 3/12 (2006.01); B32B 5/02 (2006.01); B32B 5/12 (2006.01); B32B 9/04 (2006.01); B32B 15/14 (2006.01); B32B 21/10 (2006.01); B32B 27/12 (2006.01); B32B 27/20 (2006.01); B32B 27/36 (2006.01); E02D 29/14 (2006.01); B29K 67/00 (2006.01); B29K 309/08 (2006.01); B29K 509/08 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
E02D 29/1454 (2013.01); B29C 70/48 (2013.01); B29C 70/546 (2013.01); B32B 3/08 (2013.01); B32B 3/12 (2013.01); B32B 5/02 (2013.01); B32B 5/12 (2013.01); B32B 9/047 (2013.01); B32B 15/14 (2013.01); B32B 21/10 (2013.01); B32B 27/12 (2013.01); B32B 27/20 (2013.01); B32B 27/36 (2013.01); E02D 29/1472 (2013.01); B29K 2067/06 (2013.01); B29K 2309/08 (2013.01); B29K 2509/08 (2013.01); B29K 2995/0063 (2013.01); B29L 2031/724 (2013.01); B32B 2262/101 (2013.01); B32B 2264/101 (2013.01); B32B 2307/72 (2013.01); E02D 2200/1628 (2013.01); E02D 2250/0007 (2013.01); E02D 2300/0006 (2013.01); E02D 2300/0026 (2013.01); E02D 2300/0046 (2013.01); E02D 2300/0071 (2013.01); E02D 2300/0075 (2013.01); Y10T 428/24124 (2015.01); Y10T 428/24785 (2015.01);
Abstract

Disclosed is a cover for a utility vault and a method for making such covers. The cover is formed from fiberglass reinforcement layers, a low-density core, 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 core is positioned between the top and bottom reinforcement layers. 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, encases the core, and binds the components together. The polymer matrix includes a thermoset polymer resin.

Find Patent Forward Citations

Fagan, Lemuel. (2026). Lightweight molded covers and plates (U.S. Patent No. 12729501). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12729501

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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