Jonas V Bilenas

US Patent:

61824402, Feb 6, 2001

Filed:

Jan 14, 1986

Appl. No.:

6/818645

Inventors:

Jonas Bilenas - Dix Hills NY
Robert Kosson - Massapequa NY
Salvatore Attard - Huntington NY

Assignee:

Northrop Grumman Corporation - Los Angeles CA

International Classification:

F02C 700

US Classification:

60 395

Abstract:

An infrared radiation Coanda suppressor of an exhaust system encloses a Coanda surface for guiding exhaust gases into the atmosphere. The infrared radiation suppressor further uses cooling films for reducing the temperature of the Coanda surface and other exposed surfaces. A cool air entrainment flow of the exhaust gases prevents the buildup of recirculating hot gases in the exhaust chamber. As a result, IR radiation is suppressed from areas of the exhaust system which are exposed to IR detectors.

US Patent:

46090347, Sep 2, 1986

Filed:

Apr 17, 1984

Appl. No.:

6/601150

Inventors:

Robert Kosson - Massapequa NY
Jonas Bilenas - Melville NY
Salvatore Attard - Huntington NY
Theodore Hilgeman - Centerport NY

Assignee:

Grumman Aerospace Corporation - Bethpage NY

International Classification:

F41H 300

US Classification:

165 1

Abstract:

Military mechanical field equipment, such as an electrical generator, is camouflaged from airborne IR detection by enclosing the equipment in a double-walled enclosure having hollow walls through which air is forced to flow. By adjusting the air flow in the enclosure, the radiance from the enclosure can be made the same as its immediate surroundings. A dual temperature sensor senses temperature differences between the enclosure surface and the surroundings and varies the air cooling accordingly until thermal balance is achieved.

US Patent:

51177374, Jun 2, 1992

Filed:

Nov 1, 1990

Appl. No.:

7/627396

Inventors:

Robert L. Kosson - Massapequa NY
Jonas A. Bilenas - Melville NY
Salvatore J. Attard - Huntington NY

Assignee:

Grumman Aerospace Corporation - Bethpage NY

International Classification:

F41H 300

US Classification:

89 3601

Abstract:

An enclosure covers equipment to be camouflaged from thermal or multi-spectral (thermal, radar visual) detection in spaced relation with the equipment. The enclosure is preferably semi-transparent plastic material sufficiently spaced from the equipment to permit natural convection, or forced airflow over the equipment. In one embodiment, the plastic material has a number of sides with a plurality of openings formed therein for entraining air and a top joining the sides. A chimney is formed in the top and an adjustable discharge damper is provided in the chimney for controlling the flow of air over the equipment. The airflow may be natural or controlled actively or semi-actively.