Heat source used in calibrating a heat sensor


FIG. 1 is a side elevational view of a heat source used in calibrating a heat sensor, showing my new design, the opposite side being a mirror image thereof;

FIG. 2 is a top plan view thereof.

FIG. 3 is a bottom plan view thereof.

FIG. 4 is a front elevation view thereof.

FIG. 5 is a rear elevation view thereof.

Referenced Cited
U.S. Patent Documents
D61728 December 1922 Sieben
D152841 February 1949 Thompson et al.
D201113 May 1965 Groves
Patent History
Patent number: D296977
Type: Grant
Filed: Nov 14, 1985
Date of Patent: Aug 2, 1988
Inventor: Kevin B. Christie (White River Junction, VT)
Primary Examiner: Catherine Kemper
Attorney: Terry M. Gernstein
Application Number: 6/804,978
Current U.S. Class: D 8/291