General Electric Company

Scott A Jolma

Steven L Hering

A preferred fire-rated dome housing assembly ( ) is mountable in a space ( ) formed between a ceiling ( ) and a false ceiling ( ) and having a height ( ) as little as 8.9 cm. The housing assembly includes a housing ( ) that is mountable through a hole ( ) in the false ceiling, and is protected from heat by a thermal insulation blanket ( ). Support straps ( ) are attached to a ceiling ring ( ) that surrounds the hole for securing the housing assembly to false ceiling supporting members ( ). A spacing collar ( ) is fastened to the ceiling ring by threaded spacers ( ) that extend below the false ceiling. The housing protrudes below the false ceiling and includes a mounting flange ( ) that is fastened to the spacing collar. A dome ( ) is secured to the mounting flange. The housing assembly preferably encloses a video camera ( ).

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Corvallis, OR, United States of America

Scott A Jolma