Retaining device for an inner tube of an evacuated double-tubing type solar heat collector
Patent
·
OSTI ID:5419579
A retaining device for an inner tube of an evacuated double-tubing type solar heat collector having a ring formed around an outer periphery surface of an inner tube and at least three equally spaced-apart leaf springs being affixed to the ring at right angles to the diametric direction thereof. Each leaf spring is constructed from a narrow metal strip bent into a corrugated or gentle saw-tooth shape. The leaf springs having portions for contacting an inner surface of an outer tube formed at bent crest portions, and portions for contacting the outer surface of the inner tube formed at bent trough portions. The leaf springs are bent centripetally inward at one end thereof and formed into respective holders of a getter metal at the inwardly bent portions.
- Assignee:
- Nitto Kohki Co., Ltd. (Japan)
- Patent Number(s):
- US 4508104
- OSTI ID:
- 5419579
- Country of Publication:
- United States
- Language:
- English
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