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:
Jun. 29, 1976
Filed:
Sep. 19, 1973
William Brandt Goldsworthy, Palos Verdes, CA (US);
Ethridge E Hardesty, Pine Valley, CA (US);
Goldsworthy Engineering, Inc., Torrance, CA (US);
Abstract
An apparatus and a method for fabricating on-site storage structures with reinforced composite materials, as well as the storage structures produced in accordance with the apparatus and method. In one aspect of the invention, reinforcing material which comprises at least one layer of fiber containing strand material, and one or more layers of fiber containing mat material are resin impregnated and passed through a draw-die orifice. Upon passing through the draw-die orifice this material is deposited in a continuously formed spiral where the turns forming the spiral are registered with each other. A cure of the resin material is initiated as the impregnated reinforcing material passes through the draw-die orifice. The cure is initiated by means of a curing device which applies dielectric energy to the impregnated reinforcing material, to thereby form a rigid spiral turn which becomes bonded to the next adjacent registered layer. In another aspect of the present invention, matrix impregnated reinforcing material is pultruded through a draw-die orifice and cured during the formation thereof as a continuous strip. This strip has the overall cross sectional shape and size of a turn in the storage structure and is coiled and retained in a dispensing container. This strip is then dispensed from the dispensing container and passed through an application head which deposits the strip in the form of a turn on a previously deposited turn and rigidly secures and bonds this turn to such previously deposited turn.