Solar unit for use in stock tanks and small ponds to keep water in unfrozen state in winter so animals may drink it

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a top view of my solar unit for use in stock tanks and small ponds to keep water in unfrozen state in winter so animals may drink it showing my new design;

FIG. 2 is a bottom view thereof;

FIG. 3 is a side view thereof; and,

FIG. 4 is an upper, perspective view thereof.

Referenced Cited
U.S. Patent Documents
3205860 September 1965 Moore
4108156 August 22, 1978 Sitter
5002017 March 26, 1991 Hollyday et al.
Patent History
Patent number: D348313
Type: Grant
Filed: Jan 21, 1992
Date of Patent: Jun 28, 1994
Inventor: Henry S. Saruwatari (Hotchkiss, CO)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Lisa Lichtenstein
Attorney: Donald W. Erickson
Application Number: 7/822,848