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:
Dec. 07, 1976
Filed:
Feb. 06, 1976
Richard George Sarazin, Onalaska, WI (US);
Larry Dale Olson, Viroqua, WI (US);
Universal Oil Products Company, Des Plaines, IL (US);
Abstract
Flat plate absorber member includes a flat heat absorbing sheet of a thin metal foil such as copper, or a thin plastic film such as polyvinyl fluoride, bonded to a channeled substrate, and particularly to a plastic laminate such as a glass epoxy laminate. The improved absorber member provides an energy collecting efficiency which is much greater than that of a much more expensive conventional collector having a series of copper tubes soldered to a copper sheet. The absorber is preferably made by the method of taking a base sheet of fully cured glass epoxy laminate and overlying it with a precut, patterned intermediate layer of semi-cured glass epoxy which defines the depth of the side walls of the channels. The cover sheet of metal foil or plastic film is then placed over the semi-cured glass epoxy intermediate layer and heat and pressure are applied to bond the semi-cured glass epoxy to the cover sheet and to the previously cured base sheet.