Infra-red radiometer

- Williamson Corporation
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Description

FIG. 1 is a right side elevational view of an infra-red radiometer showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D215120 September 1969 Estes
D223359 April 1972 Anderson
D225005 October 1972 Greene
D225405 December 1972 Szeles
D231739 June 1974 Gauthier
4005605 February 1, 1977 Michael
Other references
  • Design News, 9/30/64, p. 42, Directional monitor at bottom right.
Patent History
Patent number: D247352
Type: Grant
Filed: Oct 28, 1975
Date of Patent: Feb 28, 1978
Assignee: Williamson Corporation (Concord, MA)
Inventor: Oskar Heininger (Framingham, MA)
Primary Examiner: Nelson C. Holtje
Attorney: Melvin R. Jenney
Application Number: 5/626,310
Classifications
Current U.S. Class: Measuring, Regulating Or Indicating Instrument, Or Casing (D10/46)
International Classification: D1004;