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US 4,312,687 AGranted
Solar collector headers
AssigneeChevron Research Company
InventorHarry W. Sigworth, Jr.
Life of this patent
Estimating the term…
Abstract
The present invention presents a novel method for injection molding a header to the open-ended tubes of an elastomeric solar collector. Special mold pieces and mandrels are required to carry out the invention.
Claims7
A method for forming a hollow elongated header having plural radially disposed hollow pliant tubes, comprising:
- fitting an end of each of said tubes around a mating one of plural hollow cylindrical elements projecting radially from the canvex side of a hollow, semi-cylindrical member;
- placing said member in abuttment with a generally cylindrical mandrel to form a generally cylindrical assembly having plural radially projecting elements;
- disposing said assembly in a female mold with said tubes projecting through apertures in a wall of said mold;
- injection molding a hardenable elastomeric material in a cavity space between said female mold and said assembly;
- hardening said material about said assembly including ends of said tubes and removing said mandrel to form said header.
2 more elements
A method for forming a header to receive a plurality of open-ended hollow partially cured pliant tubes, which comprises:
- fitting the end of each tube around mating, substantially radially aligned, cylindrical elements projecting perpendicularly from the convex side of a hollow copper semi-cylindrical member, placing said member in abutment with a generally cylindrical mandrel to form a generally cylindrical assembly having plural radially projecting elements;
- disposing said assembly in a female mold with said tubes projecting therefrom;
- injection molding a hardenable elastmeric material in a cavity space between and defined by said female mold and said assembly;
- hardening said material about said assembly including ends of said tubes and removing said mandrel.
1 more element
Dependencies are inferred from the claim text.