Solar heat exchange element

Oct 30, 1975

Description

FIG. 1 is a perspective view of the solar heat-exchanger element of my new design, an intermediate portion thereof being broken away to indicate indeterminate length; and

FIG. 2 is an end elevation view thereof.

Referenced Cited

U.S. Patent Documents

D31869	November 1899	Kline
D239808	May 1976	Vihma
1753227	April 1930	Wheeler et al.

Patent History

Patent number: D245173
Type: Grant
Filed: Oct 30, 1975
Date of Patent: Jul 26, 1977
Inventor: Egon Van Leeuwen (Blackburn, Victoria)
Primary Examiner: Alan P. Douglas
Attorney: John W. Malley
Application Number: 5/627,453

Classifications

Current U.S. Class: D23/136
International Classification: D2303;