Russellstoll Engineers Gain Patent For Fluorescent Lamp-Locking Device

Richard Havens, Joseph Flor, and Peter Panayoti have received a U.S. patent for a selfactuating locking assembly to prevent undesired rotation and fluorescent lamp "fall-out" problems resulting from the vibration conditions typical of marine and industrial environments. The patent has been assigned to the Russellstoll Division, Midland-Ross Corporation.

The locking assembly is attached to a conventional fluorescent tube socket and is designed to prevent the rotation and subsequent fall-out of a standard, straight-line type fluorescent lamp even under the vibration and impact conditions encountered aboard ship or in industrial plants.

The invention consists of a Cshaped spring that holds two nonconductive locking members between the arms of the C and attaches to a conventional socket. The locking members permit the pins of the fluorescent lamp to be inserted into the socket as usual, but then automatically lock the pins into position.

The lamp is easily removed, however, by spreading the C slightly with the fingers while rotating the lamp.

Presently included in low-profile ceiling lights intended primarily for marine or industrial use, the Russellstoll locking device can be incorporated into most existing fluorescent fixtures. Only one end of the lamp need be locked to prevent rotation.

The self-locking assembly is initially being applied to Russellstoll's SnapLight marine and industrial fixture line on fixtures holding 4- foot lamps. Shorter lamps are not usually loosened by vibration.

For additional information on the new locking device, Circle 33 on Reader Service Card

Maritime Reporter Magazine, page 49,  May 1986

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Maritime Reporter

First published in 1881 Maritime Reporter is the world's largest audited circulation publication serving the global maritime industry.