Communications: electrical – Watercraft alarm or indicating systems – Navigation guides
Patent
1986-06-11
1988-04-05
Crosland, Donnie L.
Communications: electrical
Watercraft alarm or indicating systems
Navigation guides
116 26, 116107, 340984, 441 13, 441 16, G08G 300
Patent
active
047362057
ABSTRACT:
Marine buoy lantern employs a heavily damped two-axis gimbal including an outer gimbal frame supported to the lantern housing by a pair of hinges and an inner gimbal member mounted to the outer gimbal frame by another pair of hinges. The hinges are made of plastic and respond very slowly to a torque applied thereto unlike gimbals employing bearings. The inner gimbal member supports the drum lens, flasher, lampchanger, and counterweights. The hinged gimbal cooperates with the counterweights immersed in a very viscous fluid to maintain the lantern vertically disposed notwithstanding angles of inclination of .+-.9.degree., or a total of 18.degree., of the marine buoy mounting the lantern atop thereof.
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Automatic Power, Inc.
Crosland Donnie L.
Swarthout Brent A.
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