Heat transfer system

Description

FIG. 1 is a perspective view of a heat transfer system, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is an end elevational view thereof;

FIG. 6 is an elevational view of the side opposite that shown in FIG. 3.

Referenced Cited
U.S. Patent Documents
83863 November 1868 Laubach
92526 July 1869 Hamilton
1319555 October 1919 Andersen
2232272 February 1941 Rieger
2243593 May 1941 Zallea
2267695 December 1941 Graham
2395594 February 1946 Ulberg
3283811 November 1966 Harvey
Foreign Patent Documents
122563 January 1919 GBX
279625 January 1971 SUX
Patent History
Patent number: D287047
Type: Grant
Filed: May 30, 1984
Date of Patent: Dec 2, 1986
Inventor: Kenneth V. Nygren (Eagle, WI)
Primary Examiner: Catherine E. Kemper
Law Firm: Quarles & Brady
Application Number: 6/615,213
Classifications
Current U.S. Class: D23/136