Communications: electrical – Condition responsive indicating system – Specified housing
Reexamination Certificate
2005-03-08
2005-03-08
Mullen, Thomas (Department: 2632)
Communications: electrical
Condition responsive indicating system
Specified housing
C340S321000, C340S691400, C340S693110, C362S259000
Reexamination Certificate
active
06864799
ABSTRACT:
A safety device for firefighters to mark a viable exit for a building includes an audible sounder and a number of laser diodes in a housing with lenses that create panes or sheets of light. The housing of the device can have prongs that allow the device to pierce drywall to mount it near a door or window, as well as an adhesive or cement for mounting on other vertical surfaces. The housing is also has a tapered wedge shape and can wedge a door in an open position. There can be e.g. four laser diodes oriented at various angles.
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Pfleiderer Steven G.
Popps Gregory S.
Molldrem, Jr. Bernhard P.
Mullen Thomas
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