Heat recirculator

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Description

FIG. 1 is a perspective view of a heat recirculator showing my new design.

FIG. 2 is a front view thereof.

FIG. 3 is a side view thereof.

FIG. 4 is a top plan view thereof.

Referenced Cited
U.S. Patent Documents
D173531 November 1954 Halbeisen
D176137 November 1955 Jenks
D238278 December 1975 Baker, Jr.
2251725 August 1941 Warren
3347025 October 1967 Wiley
3827342 August 1974 Hughes
Patent History
Patent number: D252641
Type: Grant
Filed: Feb 9, 1977
Date of Patent: Aug 14, 1979
Assignee: Broan Manufacturing Co., Inc. (Hartford, WI)
Inventor: Ralph M. LaZar (Skokie, IL)
Primary Examiner: James R. Largen
Attorney: Daniel D. Fetterley
Application Number: 5/766,914
Classifications
Current U.S. Class: D23/151; D23/144; 98/33A
International Classification: D2304;