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US 2021/0370563 A1Published application
Improvements relating to solar heaters
AssigneeAspire Polymers Pty Ltd
InventorPaul Carroll
Life of this patent
Estimating the term…
Abstract
A solar heat exchanger for heating water which includes an array of tubes, an injection molded manifold there being connections between each tube in the array and the manifold which are over molded to seal the tubes to the manifold.
Claims9
(canceled)
(canceled)
(canceled)
A method of manufacturing a solar heat exchanger comprising an array of tubes and an injection moulded plastics manifold, said manifold having a tubular body with an array of spigots along its length, said method comprising:
- pushing onto said of spigots on said manifold body corresponding ends of said tubes, each said spigot incorporating an external annular recess on the spigot, and
- overmoulding the spigots, and their corresponding ends of said tubes, with a flowable plastics compound to thereby seal the tubes to the manifold,
- wherein said compound flows into said annular recesses.
The method according to claim 7 wherein said flowable plastics compound chemically adheres to the spigots, the manifold body and the tubes.
Dependencies are inferred from the claim text.