The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 06, 1976
Filed:
Jan. 29, 1975
Robert C Miller, Encino, CA (US);
Summa Corporation, Culver City, CA (US);
Abstract
A device for shielding a heated surface from infrared detection through an exhaust opening adjacent the heated surface which comprises an exhaust gas conducting member adapted to receive heated exhaust gases from the exhaust opening with the member having a configuration which blocks the exhaust opening from line-of-sight view through the outlet to the member. The exhaust gas conducting member includes apparatus to inhibit heat transfer across its interior surface while promoting heat transfer through the wall of the member. Additionally there is provided a diffusion device for breaking up a main stream of heated exhaust gas into a plurality of smaller streams to reduce infrared radiation from the exhaust gas which includes a body adapted to receive heated exhaust gas with insulation apparatus to maintain the exterior surface of the body at a relatively low temperature. A plurality of openings in the body provide discharge of smaller streams of exhaust gas. The openings may be shaped to provide a cross-sectional configuration for the smaller streams of exhaust gas which promote dissipation of heat and energy and which reduce the emissivity of the gas streams.