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.:
Date of Patent:
Apr. 23, 2019
Filed:
Apr. 10, 2015
Channell Commercial Corporation, Temecula, CA (US);
Prc Composites, Llc, Ontario, CA (US);
Edward J. Burke, Temecula, CA (US);
Thomas Atkins, Newport Beach, CA (US);
Brian Anthony Beach, Rancho Cucamonga, CA (US);
Robert Gwillim, Temecula, CA (US);
John A. Neate, Niles, MI (US);
Channell Commercial Corporation, Temecula, CA (US);
PRC Composites, LLC, Ontario, CA (US);
Abstract
A method of manufacturing a fiber reinforced composite material lid for an utility vault including mixing an unsaturated polyester thermosetting matrix in to a resin paste, compounding the resin paste into a fiber reinforced composite material, maturing the compounded fiber reinforced composite material, cutting the matured compound into a charge pattern, molding the charge pattern in a mold cavity of a heated mold under low pressure to form the lid and cooling and machining the lid. The mold includes a cavity die and a core die having a shear angle for interfacing the core die within the cavity die and a steam pot for heating the cavity die and the core die, wherein the lid is molded between the cavity die and the core die and removed from the mold by a lid ejection mechanism.