Illumination – Light source and modifier – With sealing means or artificial atmosphere
Patent
1990-09-10
1992-04-14
Lazarus, Ira S.
Illumination
Light source and modifier
With sealing means or artificial atmosphere
362261, 362263, 362226, 362310, F21V 2900
Patent
active
051053462
ABSTRACT:
The underwater illumination apparatus has a high pressure sodium arc lamp sealed to a stainless steel base with a flexible, radiation-resistant potting material to provide both a watertight seal and a shock-absorbing connection. A wet-mateable base connector is attached to the base to permit connection to a lower cable. A transparent, impact-resistant cover is formed around the base and the arc lamp. The cover has holes through which water can flow in and out to conduct heat away from the arc lamp. The combination of the above elements creates a modular unit which is replaced as a whole when the arc lamp burns out. The lower cable which provides power to the arc lamp is attached at its other end to a ballast power supply which is hermetically sealed in a stainless steel housing. Wet mateable connectors are attached at the inlet and outlet of the ballast power supply to attach to the lower cable and to the upper cable connection to a 120 VAC source.
REFERENCES:
patent: 3681591 (1972-08-01), Loch
patent: 3949212 (1976-04-01), Larrimore
patent: 4574337 (1986-03-01), Poppenheimer
patent: 4683523 (1987-07-01), Olsson et al.
patent: 4996635 (1991-02-01), Olsson et al.
patent: 5016151 (1991-05-01), Mula
Letter from Commander Submarine Group 2 to Commander Submarine Force,U.S. Atlantic Fleet, dated Dec. 11, 1989.
Facsimile Received from Assignee's Agents in Scotland on Oct. 26, 1990.
Assignee's Sales Brochure, Distributed Beginning in 1986.
Acks Robert S.
Fugitt R. Bruce
Hagarman Sue
Lazarus Ira S.
Remote Ocean Systems, Inc.
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